BEGIN:VCALENDAR VERSION:2.0 PRODID:-//Frost Calendar//Castle Rock 2027//EN CALSCALE:GREGORIAN METHOD:PUBLISH X-WR-CALNAME:Castle Rock frost & planting 2027 BEGIN:VEVENT UID:colorado-castle-rock-2027-1@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270509 DTEND;VALUE=DATE:20270510 SUMMARY:Castle Rock: typical last frost (32°F\, 50%) DESCRIPTION:Half of years have their last 32°F night by today. NOAA 1991 –2020 normals\, station Castle Rock (USC00051401). Long-term odds\, not a forecast. Details: https://frostcalendar.com/colorado/castle-rock/planti ng-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-2@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270524 DTEND;VALUE=DATE:20270525 SUMMARY:Castle Rock: safer last-frost date (32°F\, 10%) DESCRIPTION:About 1 year in 10 still has a 32°F night after today. NOAA 19 91–2020 normals\, station Castle Rock (USC00051401). Long-term odds\, no t a forecast. Details: https://frostcalendar.com/colorado/castle-rock/plan ting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-3@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270917 DTEND;VALUE=DATE:20270918 SUMMARY:Castle Rock: early first-frost risk (32°F\, 10%) DESCRIPTION:About 1 year in 10 has its first 32°F night by today. NOAA 199 1–2020 normals\, station Castle Rock (USC00051401). Long-term odds\, not a forecast. Details: https://frostcalendar.com/colorado/castle-rock/plant ing-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-4@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20271002 DTEND;VALUE=DATE:20271003 SUMMARY:Castle Rock: typical first frost (32°F\, 50%) DESCRIPTION:Half of years have had their first 32°F night by today. NOAA 1 991–2020 normals\, station Castle Rock (USC00051401). Long-term odds\, n ot a forecast. Details: https://frostcalendar.com/colorado/castle-rock/pla nting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-5@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270504 DTEND;VALUE=DATE:20270519 SUMMARY:Castle Rock: Start tomato seeds indoors DESCRIPTION:Start tomato seeds indoors. Timing rule: CSU Extension / UNL Ex tension (see methodology). NOAA 1991–2020 normals\, station Castle Rock (USC00051401). Long-term odds\, not a forecast. Details: https://frostcale ndar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-6@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270622 DTEND;VALUE=DATE:20270623 SUMMARY:Castle Rock: Tomatoes: transplant outdoors DESCRIPTION:Window from the typical-date anchor (Jun 22) to the safer ancho r (Jun 22). Tomatoes: transplant outdoors. Timing rule: CSU Extension / UN L Extension (see methodology). NOAA 1991–2020 normals\, station Castle R ock (USC00051401). Long-term odds\, not a forecast. Details: https://frost calendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-7@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270403 DTEND;VALUE=DATE:20270418 SUMMARY:Castle Rock: Start pepper seeds indoors DESCRIPTION:Start pepper seeds indoors. Timing rule: CSU Extension / UNL Ex tension (see methodology). NOAA 1991–2020 normals\, station Castle Rock (USC00051401). Long-term odds\, not a forecast. Details: https://frostcale ndar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-8@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270523 DTEND;VALUE=DATE:20270608 SUMMARY:Castle Rock: Peppers: transplant outdoors DESCRIPTION:Window from the typical-date anchor (May 23) to the safer ancho r (Jun 7). Peppers: transplant outdoors. Timing rule: CSU Extension / UNL Extension (see methodology). NOAA 1991–2020 normals\, station Castle Roc k (USC00051401). Long-term odds\, not a forecast. Details: https://frostca lendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-9@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270425 DTEND;VALUE=DATE:20270525 SUMMARY:Castle Rock: Potatoes: plant (seed pieces) outdoors DESCRIPTION:Window from the typical-date anchor (Apr 25 – May 9) to the s afer anchor (May 10–24). Potatoes: plant (seed pieces) outdoors. Timing rule: CSU Extension / UNL Extension (see methodology). NOAA 1991–2020 no rmals\, station Castle Rock (USC00051401). Long-term odds\, not a forecast . Details: https://frostcalendar.com/colorado/castle-rock/planting-calenda r/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-10@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270411 DTEND;VALUE=DATE:20270511 SUMMARY:Castle Rock: Onions (dry\, from sets): plant sets outdoors DESCRIPTION:Window from the typical-date anchor (Apr 11–25) to the safer anchor (Apr 26 – May 10). Onions (dry\, from sets): plant sets outdoors. Timing rule: CSU Extension / UNL Extension (see methodology). NOAA 1991 –2020 normals\, station Castle Rock (USC00051401). Long-term odds\, not a forecast. Details: https://frostcalendar.com/colorado/castle-rock/planti ng-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-11@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270411 DTEND;VALUE=DATE:20270511 SUMMARY:Castle Rock: Peas: direct sow outdoors DESCRIPTION:Window from the typical-date anchor (Apr 11–25) to the safer anchor (Apr 26 – May 10). Peas: direct sow outdoors. Timing rule: CSU Ex tension / UNL Extension (see methodology). NOAA 1991–2020 normals\, stat ion Castle Rock (USC00051401). Long-term odds\, not a forecast. Details: h ttps://frostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-12@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270715 DTEND;VALUE=DATE:20270716 SUMMARY:Castle Rock: Last day to sow peas for a fall harvest DESCRIPTION:Last day to sow peas for a fall harvest. Timing rule: CSU Exten sion / UNL Extension (see methodology). NOAA 1991–2020 normals\, station Castle Rock (USC00051401). Long-term odds\, not a forecast. Details: http s://frostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-13@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270411 DTEND;VALUE=DATE:20270511 SUMMARY:Castle Rock: Lettuce (leaf): direct sow outdoors DESCRIPTION:Window from the typical-date anchor (Apr 11–25) to the safer anchor (Apr 26 – May 10). Lettuce (leaf): direct sow outdoors. Timing ru le: CSU Extension / UNL Extension (see methodology). NOAA 1991–2020 norm als\, station Castle Rock (USC00051401). Long-term odds\, not a forecast. Details: https://frostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-14@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270720 DTEND;VALUE=DATE:20270721 SUMMARY:Castle Rock: Last day to sow lettuce (leaf) for a fall harvest DESCRIPTION:Last day to sow lettuce (leaf) for a fall harvest. Timing rule: CSU Extension / UNL Extension (see methodology). NOAA 1991–2020 normals \, station Castle Rock (USC00051401). Long-term odds\, not a forecast. Det ails: https://frostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-15@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270425 DTEND;VALUE=DATE:20270525 SUMMARY:Castle Rock: Carrots: direct sow outdoors DESCRIPTION:Window from the typical-date anchor (Apr 25 – May 9) to the s afer anchor (May 10–24). Carrots: direct sow outdoors. Timing rule: CSU Extension / UNL Extension (see methodology). NOAA 1991–2020 normals\, st ation Castle Rock (USC00051401). Long-term odds\, not a forecast. Details: https://frostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-16@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270710 DTEND;VALUE=DATE:20270711 SUMMARY:Castle Rock: Last day to sow carrots for a fall harvest DESCRIPTION:Last day to sow carrots for a fall harvest. Timing rule: CSU Ex tension / UNL Extension (see methodology). NOAA 1991–2020 normals\, stat ion Castle Rock (USC00051401). Long-term odds\, not a forecast. Details: h ttps://frostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-17@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270509 DTEND;VALUE=DATE:20270525 SUMMARY:Castle Rock: Beans (snap): direct sow outdoors DESCRIPTION:Window from the typical-date anchor (May 9) to the safer anchor (May 24). Beans (snap): direct sow outdoors. Timing rule: CSU Extension / UNL Extension (see methodology). NOAA 1991–2020 normals\, station Castl e Rock (USC00051401). Long-term odds\, not a forecast. Details: https://fr ostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-18@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270706 DTEND;VALUE=DATE:20270707 SUMMARY:Castle Rock: Last day to sow beans (snap) for a fall harvest DESCRIPTION:Last day to sow beans (snap) for a fall harvest. Timing rule: C SU Extension / UNL Extension (see methodology). NOAA 1991–2020 normals\, station Castle Rock (USC00051401). Long-term odds\, not a forecast. Detai ls: https://frostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-19@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270509 DTEND;VALUE=DATE:20270525 SUMMARY:Castle Rock: Summer squash: direct sow outdoors DESCRIPTION:Window from the typical-date anchor (May 9) to the safer anchor (May 24). Summer squash: direct sow outdoors. Timing rule: CSU Extension / UNL Extension (see methodology). NOAA 1991–2020 normals\, station Cast le Rock (USC00051401). Long-term odds\, not a forecast. Details: https://f rostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-20@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270716 DTEND;VALUE=DATE:20270717 SUMMARY:Castle Rock: Last day to sow summer squash for a fall harvest DESCRIPTION:Last day to sow summer squash for a fall harvest. Timing rule: CSU Extension / UNL Extension (see methodology). NOAA 1991–2020 normals\ , station Castle Rock (USC00051401). Long-term odds\, not a forecast. Deta ils: https://frostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-21@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270227 DTEND;VALUE=DATE:20270314 SUMMARY:Castle Rock: Start broccoli seeds indoors DESCRIPTION:Start broccoli seeds indoors. Timing rule: CSU Extension / UNL Extension (see methodology). NOAA 1991–2020 normals\, station Castle Roc k (USC00051401). Long-term odds\, not a forecast. Details: https://frostca lendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-22@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270411 DTEND;VALUE=DATE:20270511 SUMMARY:Castle Rock: Broccoli: transplant outdoors DESCRIPTION:Window from the typical-date anchor (Apr 11–25) to the safer anchor (Apr 26 – May 10). Broccoli: transplant outdoors. Timing rule: CS U Extension / UNL Extension (see methodology). NOAA 1991–2020 normals\, station Castle Rock (USC00051401). Long-term odds\, not a forecast. Detail s: https://frostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-23@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270527 DTEND;VALUE=DATE:20270611 SUMMARY:Castle Rock: Start broccoli seeds indoors for a fall crop DESCRIPTION:Start broccoli seeds indoors for a fall crop. Timing rule: CSU Extension / UNL Extension (see methodology). NOAA 1991–2020 normals\, st ation Castle Rock (USC00051401). Long-term odds\, not a forecast. Details: https://frostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-24@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270715 DTEND;VALUE=DATE:20270716 SUMMARY:Castle Rock: Last day to set out broccoli transplants for a fall ha rvest DESCRIPTION:Last day to set out broccoli transplants for a fall harvest. Ti ming rule: CSU Extension / UNL Extension (see methodology). NOAA 1991–20 20 normals\, station Castle Rock (USC00051401). Long-term odds\, not a for ecast. Details: https://frostcalendar.com/colorado/castle-rock/planting-ca lendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-25@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270227 DTEND;VALUE=DATE:20270314 SUMMARY:Castle Rock: Start cabbage seeds indoors DESCRIPTION:Start cabbage seeds indoors. Timing rule: CSU Extension / UNL E xtension (see methodology). NOAA 1991–2020 normals\, station Castle Rock (USC00051401). Long-term odds\, not a forecast. Details: https://frostcal endar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-26@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270411 DTEND;VALUE=DATE:20270511 SUMMARY:Castle Rock: Cabbage: transplant outdoors DESCRIPTION:Window from the typical-date anchor (Apr 11–25) to the safer anchor (Apr 26 – May 10). Cabbage: transplant outdoors. Timing rule: CSU Extension / UNL Extension (see methodology). NOAA 1991–2020 normals\, s tation Castle Rock (USC00051401). Long-term odds\, not a forecast. Details : https://frostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-27@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270507 DTEND;VALUE=DATE:20270522 SUMMARY:Castle Rock: Start cabbage seeds indoors for a fall crop DESCRIPTION:Start cabbage seeds indoors for a fall crop. Timing rule: CSU E xtension / UNL Extension (see methodology). NOAA 1991–2020 normals\, sta tion Castle Rock (USC00051401). Long-term odds\, not a forecast. Details: https://frostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-28@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270625 DTEND;VALUE=DATE:20270626 SUMMARY:Castle Rock: Last day to set out cabbage transplants for a fall har vest DESCRIPTION:Last day to set out cabbage transplants for a fall harvest. Tim ing rule: CSU Extension / UNL Extension (see methodology). NOAA 1991–202 0 normals\, station Castle Rock (USC00051401). Long-term odds\, not a fore cast. Details: https://frostcalendar.com/colorado/castle-rock/planting-cal endar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-29@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270313 DTEND;VALUE=DATE:20270328 SUMMARY:Castle Rock: Start cauliflower seeds indoors DESCRIPTION:Start cauliflower seeds indoors. Timing rule: CSU Extension / U NL Extension (see methodology). NOAA 1991–2020 normals\, station Castle Rock (USC00051401). Long-term odds\, not a forecast. Details: https://fros tcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-30@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270425 DTEND;VALUE=DATE:20270525 SUMMARY:Castle Rock: Cauliflower: transplant outdoors DESCRIPTION:Window from the typical-date anchor (Apr 25 – May 9) to the s afer anchor (May 10–24). Cauliflower: transplant outdoors. Timing rule: CSU Extension / UNL Extension (see methodology). NOAA 1991–2020 normals\ , station Castle Rock (USC00051401). Long-term odds\, not a forecast. Deta ils: https://frostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-31@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270411 DTEND;VALUE=DATE:20270511 SUMMARY:Castle Rock: Kohlrabi: direct sow outdoors DESCRIPTION:Window from the typical-date anchor (Apr 11–25) to the safer anchor (Apr 26 – May 10). Kohlrabi: direct sow outdoors. Timing rule: CS U Extension / UNL Extension (see methodology). NOAA 1991–2020 normals\, station Castle Rock (USC00051401). Long-term odds\, not a forecast. Detail s: https://frostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-32@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270730 DTEND;VALUE=DATE:20270731 SUMMARY:Castle Rock: Last day to sow kohlrabi for a fall harvest DESCRIPTION:Last day to sow kohlrabi for a fall harvest. Timing rule: CSU E xtension / UNL Extension (see methodology). NOAA 1991–2020 normals\, sta tion Castle Rock (USC00051401). Long-term odds\, not a forecast. Details: https://frostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-33@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270411 DTEND;VALUE=DATE:20270511 SUMMARY:Castle Rock: Green onions: direct sow outdoors DESCRIPTION:Window from the typical-date anchor (Apr 11–25) to the safer anchor (Apr 26 – May 10). Green onions: direct sow outdoors. Timing rule : CSU Extension / UNL Extension (see methodology). NOAA 1991–2020 normal s\, station Castle Rock (USC00051401). Long-term odds\, not a forecast. De tails: https://frostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-34@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270720 DTEND;VALUE=DATE:20270721 SUMMARY:Castle Rock: Last day to sow green onions for a fall harvest DESCRIPTION:Last day to sow green onions for a fall harvest. Timing rule: C SU Extension / UNL Extension (see methodology). NOAA 1991–2020 normals\, station Castle Rock (USC00051401). Long-term odds\, not a forecast. Detai ls: https://frostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-35@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270411 DTEND;VALUE=DATE:20270511 SUMMARY:Castle Rock: Radishes: direct sow outdoors DESCRIPTION:Window from the typical-date anchor (Apr 11–25) to the safer anchor (Apr 26 – May 10). Radishes: direct sow outdoors. Timing rule: CS U Extension / UNL Extension (see methodology). NOAA 1991–2020 normals\, station Castle Rock (USC00051401). Long-term odds\, not a forecast. Detail s: https://frostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-36@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270819 DTEND;VALUE=DATE:20270820 SUMMARY:Castle Rock: Last day to sow radishes for a fall harvest DESCRIPTION:Last day to sow radishes for a fall harvest. Timing rule: CSU E xtension / UNL Extension (see methodology). NOAA 1991–2020 normals\, sta tion Castle Rock (USC00051401). Long-term odds\, not a forecast. Details: https://frostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-37@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270411 DTEND;VALUE=DATE:20270511 SUMMARY:Castle Rock: Spinach: direct sow outdoors DESCRIPTION:Window from the typical-date anchor (Apr 11–25) to the safer anchor (Apr 26 – May 10). Spinach: direct sow outdoors. Timing rule: CSU Extension / UNL Extension (see methodology). NOAA 1991–2020 normals\, s tation Castle Rock (USC00051401). Long-term odds\, not a forecast. Details : https://frostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-38@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270809 DTEND;VALUE=DATE:20270810 SUMMARY:Castle Rock: Last day to sow spinach for a fall harvest DESCRIPTION:Last day to sow spinach for a fall harvest. Timing rule: CSU Ex tension / UNL Extension (see methodology). NOAA 1991–2020 normals\, stat ion Castle Rock (USC00051401). Long-term odds\, not a forecast. Details: h ttps://frostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-39@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270411 DTEND;VALUE=DATE:20270511 SUMMARY:Castle Rock: Turnips: direct sow outdoors DESCRIPTION:Window from the typical-date anchor (Apr 11–25) to the safer anchor (Apr 26 – May 10). Turnips: direct sow outdoors. Timing rule: CSU Extension / UNL Extension (see methodology). NOAA 1991–2020 normals\, s tation Castle Rock (USC00051401). Long-term odds\, not a forecast. Details : https://frostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-40@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270730 DTEND;VALUE=DATE:20270731 SUMMARY:Castle Rock: Last day to sow turnips for a fall harvest DESCRIPTION:Last day to sow turnips for a fall harvest. Timing rule: CSU Ex tension / UNL Extension (see methodology). NOAA 1991–2020 normals\, stat ion Castle Rock (USC00051401). Long-term odds\, not a forecast. Details: h ttps://frostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-41@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270425 DTEND;VALUE=DATE:20270525 SUMMARY:Castle Rock: Beets: direct sow outdoors DESCRIPTION:Window from the typical-date anchor (Apr 25 – May 9) to the s afer anchor (May 10–24). Beets: direct sow outdoors. Timing rule: CSU Ex tension / UNL Extension (see methodology). NOAA 1991–2020 normals\, stat ion Castle Rock (USC00051401). Long-term odds\, not a forecast. Details: h ttps://frostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-42@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270720 DTEND;VALUE=DATE:20270721 SUMMARY:Castle Rock: Last day to sow beets for a fall harvest DESCRIPTION:Last day to sow beets for a fall harvest. Timing rule: CSU Exte nsion / UNL Extension (see methodology). NOAA 1991–2020 normals\, statio n Castle Rock (USC00051401). Long-term odds\, not a forecast. Details: htt ps://frostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-43@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270425 DTEND;VALUE=DATE:20270525 SUMMARY:Castle Rock: Swiss chard: direct sow outdoors DESCRIPTION:Window from the typical-date anchor (Apr 25 – May 9) to the s afer anchor (May 10–24). Swiss chard: direct sow outdoors. Timing rule: CSU Extension / UNL Extension (see methodology). NOAA 1991–2020 normals\ , station Castle Rock (USC00051401). Long-term odds\, not a forecast. Deta ils: https://frostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-44@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270720 DTEND;VALUE=DATE:20270721 SUMMARY:Castle Rock: Last day to sow swiss chard for a fall harvest DESCRIPTION:Last day to sow swiss chard for a fall harvest. Timing rule: CS U Extension / UNL Extension (see methodology). NOAA 1991–2020 normals\, station Castle Rock (USC00051401). Long-term odds\, not a forecast. Detail s: https://frostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-45@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270425 DTEND;VALUE=DATE:20270525 SUMMARY:Castle Rock: Parsnips: direct sow outdoors DESCRIPTION:Window from the typical-date anchor (Apr 25 – May 9) to the s afer anchor (May 10–24). Parsnips: direct sow outdoors. Timing rule: CSU Extension / UNL Extension (see methodology). NOAA 1991–2020 normals\, s tation Castle Rock (USC00051401). Long-term odds\, not a forecast. Details : https://frostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-46@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270509 DTEND;VALUE=DATE:20270525 SUMMARY:Castle Rock: Sweet corn: direct sow outdoors DESCRIPTION:Window from the typical-date anchor (May 9) to the safer anchor (May 24). Sweet corn: direct sow outdoors. Timing rule: CSU Extension / U NL Extension (see methodology). NOAA 1991–2020 normals\, station Castle Rock (USC00051401). Long-term odds\, not a forecast. Details: https://fros tcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-47@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270509 DTEND;VALUE=DATE:20270525 SUMMARY:Castle Rock: Cucumbers: direct sow outdoors DESCRIPTION:Window from the typical-date anchor (May 9) to the safer anchor (May 24). Cucumbers: direct sow outdoors. Timing rule: CSU Extension / UN L Extension (see methodology). NOAA 1991–2020 normals\, station Castle R ock (USC00051401). Long-term odds\, not a forecast. Details: https://frost calendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-48@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270711 DTEND;VALUE=DATE:20270712 SUMMARY:Castle Rock: Last day to sow cucumbers for a fall harvest DESCRIPTION:Last day to sow cucumbers for a fall harvest. Timing rule: CSU Extension / UNL Extension (see methodology). NOAA 1991–2020 normals\, st ation Castle Rock (USC00051401). Long-term odds\, not a forecast. Details: https://frostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-49@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270327 DTEND;VALUE=DATE:20270418 SUMMARY:Castle Rock: Start eggplant seeds indoors DESCRIPTION:Start eggplant seeds indoors. Timing rule: CSU Extension / UNL Extension (see methodology). NOAA 1991–2020 normals\, station Castle Roc k (USC00051401). Long-term odds\, not a forecast. Details: https://frostca lendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-50@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270523 DTEND;VALUE=DATE:20270608 SUMMARY:Castle Rock: Eggplant: transplant outdoors DESCRIPTION:Window from the typical-date anchor (May 23) to the safer ancho r (Jun 7). Eggplant: transplant outdoors. Timing rule: CSU Extension / UNL Extension (see methodology). NOAA 1991–2020 normals\, station Castle Ro ck (USC00051401). Long-term odds\, not a forecast. Details: https://frostc alendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-51@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270523 DTEND;VALUE=DATE:20270608 SUMMARY:Castle Rock: Cantaloupe: direct sow outdoors DESCRIPTION:Window from the typical-date anchor (May 23) to the safer ancho r (Jun 7). Cantaloupe: direct sow outdoors. Timing rule: CSU Extension / U NL Extension (see methodology). NOAA 1991–2020 normals\, station Castle Rock (USC00051401). Long-term odds\, not a forecast. Details: https://fros tcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-52@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270523 DTEND;VALUE=DATE:20270608 SUMMARY:Castle Rock: Watermelon: direct sow outdoors DESCRIPTION:Window from the typical-date anchor (May 23) to the safer ancho r (Jun 7). Watermelon: direct sow outdoors. Timing rule: CSU Extension / U NL Extension (see methodology). NOAA 1991–2020 normals\, station Castle Rock (USC00051401). Long-term odds\, not a forecast. Details: https://fros tcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-53@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20270523 DTEND;VALUE=DATE:20270608 SUMMARY:Castle Rock: Winter squash: direct sow outdoors DESCRIPTION:Window from the typical-date anchor (May 23) to the safer ancho r (Jun 7). Winter squash: direct sow outdoors. Timing rule: CSU Extension / UNL Extension (see methodology). NOAA 1991–2020 normals\, station Cast le Rock (USC00051401). Long-term odds\, not a forecast. Details: https://f rostcalendar.com/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT BEGIN:VEVENT UID:colorado-castle-rock-2027-54@frostcalendar.com DTSTAMP:20261008T171512Z DTSTART;VALUE=DATE:20271001 DTEND;VALUE=DATE:20271015 SUMMARY:Castle Rock: Plant garlic cloves DESCRIPTION:Plant garlic cloves. Timing rule: CSU Extension / UNL Extension (see methodology). NOAA 1991–2020 normals\, station Castle Rock (USC000 51401). Long-term odds\, not a forecast. Details: https://frostcalendar.co m/colorado/castle-rock/planting-calendar/ TRANSP:TRANSPARENT URL:https://frostcalendar.com/colorado/castle-rock/planting-calendar/ END:VEVENT END:VCALENDAR