When to Plant Rhubarb in Prescott, Wisconsin (54021)
Location
Prescott, Wisconsin
ZIP Code
54021
USDA Zone
4b
Last Frost
Tuesday, May 5, 2026
📅 Planting Calendar
Start Seeds Indoors Tuesday, March 10, 2026
Transplant Outdoors Tuesday, May 19, 2026
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
Other Plants for Prescott
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Growing Rhubarb in Zone 4b
Rhubarb (Rheum rhabarbarum) is a popular garden vegetable. In Prescott, Wisconsin, which is in USDA Hardiness Zone 4b, you should start seeds indoors around Tuesday, March 10, 2026.
Your average last frost date is Tuesday, May 5, 2026. Plan to transplant your Rhubarb seedlings outdoors around Tuesday, May 19, 2026, about 2 weeks after your last frost date.