When to Plant Rhubarb in Washington, District of Columbia (20226)
Location
Washington, District of Columbia
ZIP Code
20226
USDA Zone
8a
Last Frost
Saturday, March 20, 2027
📅 Planting Calendar
Start Seeds Indoors Saturday, January 23, 2027
Transplant Outdoors Saturday, April 3, 2027
Pro Tip: Start Rhubarb seeds indoors 8 weeks before your last frost date for best results.
🌿 Plant Details
Scientific Name Rheum rhabarbarum
Days to Maturity 7 days
☀️ Growing Requirements
☀️
Sun
Full Sun
💧
Water
Regular
Seeds typically germinate in 8-21 days
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Growing Rhubarb in Zone 8a
Rhubarb (Rheum rhabarbarum) is a popular garden vegetable. In Washington, District of Columbia, which is in USDA Hardiness Zone 8a, you should start seeds indoors around Saturday, January 23, 2027.
Your average last frost date is Saturday, March 20, 2027. Plan to transplant your Rhubarb seedlings outdoors around Saturday, April 3, 2027, about 2 weeks after your last frost date.