种植 Rhubarb 区域 9b
Zone 9b has warm winters and an extended growing season -- excellent for heat-loving crops like Rhubarb. 末次霜冻: 3月10日. 初次霜冻: 11月15日.
Planting Calendar
Season: 3月10日 – 11月15日 (250 天)
When to Plant Rhubarb in Zone 9b
Start Seeds Indoors: 12月30日
Start Rhubarb seeds indoors around 12月30日 (10 周(最后霜冻前)). Optimal germination temperature: 65F. Germinates in 7-21 days.
Transplant Outdoors: 2月10日
Transplant Rhubarb seedlings outdoors after 2月10日. Wait until soil temperature reaches 40F. Space plants at 1/m² (30cm 间距). Harden off plants for a week before moving outside.
Harvest: 2月10日
First harvest approximately 2月10日 (~365 天 from transplant). Continue harvesting until first frost (11月15日). Rhubarb can overwinter in mild climates for continued harvest.
规划花园 Rhubarb
Track Rhubarb from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.
Start Free Rhubarb Growing Guide