When to plant rhubarb (crowns)
Rhubarb (crowns) timing, counted from your average last spring frost and first fall frost. Perennial for colder climates (zones 3–8); leaves are toxic.
| Season | cool-season, hardy to frost |
|---|---|
| Transplant | 4 weeks before to 2 weeks before the last frost |
| Soil temperature to germinate | 40°F or warmer |
| Days to maturity | 365–730 days from planting |
| Spacing | 36–36 in apart, rows 36–48 in apart |
| Seed depth | 2.0 in |
Example dates
| Place | Dates |
|---|---|
| Austin, TX (78701) | Transplant: Feb 10–24 |
| Atlanta, GA (30303) | Transplant: Feb 24–Mar 10 |
| St. Louis, MO (63101) | Transplant: Mar 4–18 |
| Chicago, IL (60614) | Transplant: Mar 13–27 |
| Denver, CO (80202) | Transplant: Apr 2–16 |
| Seattle, WA (98101) | Transplant: Feb 13–27 |
Every ZIP page has its own dates. Find your ZIP.
Find vegetable seeds: Lowe's · The Home Depot · Amazon
Retailer links are plain search links. We don't earn anything from them today; if we join a retailer's affiliate program later, we may earn a commission at no extra cost to you. Affiliate disclosure.
Sources
- University of Missouri Extension: G6201: Vegetable Planting Calendar
- K-State Research and Extension: MF315: Vegetable Garden Planting Guide
- University of Maryland Extension: When to Plant Vegetables
- NC State Extension: Central North Carolina Planting Calendar for Annual Vegetables, Fruits, and Herbs
- UF/IFAS Extension (EDIS): SP 103/VH021: Florida Vegetable Gardening Guide
- Clemson Cooperative Extension HGIC: Planning a Garden
Summarized in our own words from public extension publications.
All vegetables · Your ZIP's planting calendar
Never miss a frost: get The Dial
Weekly yard timing, plus frost and soil-temperature alerts for your ZIP code.
Free. One weekly email plus alerts when your ZIP has a frost or a soil-temperature change worth acting on. After you submit, Kit (our email provider) sends a confirmation email: check your email and click the link to confirm. You aren't subscribed until you do. We collect only your email address and ZIP, sent to Kit to deliver The Dial. Unsubscribe anytime.