Growing Rhubarb in Zone 8a
Zone 8a has warm winters and an extended growing season -- excellent for heat-loving crops like Rhubarb. น้ำค้างแข็งครั้งสุดท้าย: Apr 5. น้ำค้างแข็งครั้งแรก: Oct 28.
Planting Calendar
Season: Apr 5 – Oct 28 (206 วัน)
When to Plant Rhubarb in Zone 8a
Start Seeds Indoors: Jan 25
Start Rhubarb seeds indoors around Jan 25 (10 สัปดาห์ก่อนน้ำค้างแข็งครั้งสุดท้าย). Optimal germination temperature: 65F. Germinates in 7-21 days.
Transplant Outdoors: Mar 8
Transplant Rhubarb seedlings outdoors after Mar 8. Wait until soil temperature reaches 40F. Space plants at 1/ตร.ม. (30cm ห่างกัน). Harden off plants for a week before moving outside.
Harvest: Mar 8
First harvest approximately Mar 8 (~365 วัน from transplant). Continue harvesting until first frost (Oct 28). Rhubarb can overwinter in mild climates for continued harvest.
Rhubarb in Other Zones
1a 1b 2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b 12a 12b 13a 13bPlan Your Garden Rhubarb
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