Crops & Breeds › Vegetable Garden
🌿 Rhubarb
Vegetable Garden · growing reference
| Days to maturity | ~1 year – ~2 years, by type |
|---|---|
| Germination | 21 days |
| Spacing | 36″ in the row × 48″ between rows |
| Planted as | crown |
| Expected yield | 2–4 lbs per plant |
| Water | ~1–1.5 in a week |
When to plant
In USDA zone 6, for example: Plant around Mar 18 — as soon as the ground can be worked.
| Spring | |
|---|---|
| Zone 3 | Apr 17 |
| Zone 4 | Apr 9 |
| Zone 5 | Mar 29 |
| Zone 6 | Mar 18 |
| Zone 7 | Mar 4 |
| Zone 8 | Feb 15 |
| Zone 9 | Jan 23 |
Dates are the typical window for each zone's average frost dates — your own last frost can differ by a couple of weeks. Zone 10 and warmer is effectively frost-free: plant to the season, not the frost. Southern Hemisphere: shift six months.
Rhubarb Types
- Crown · ~1 year · 2–4 lbs/plant — A divided crown — true to the parent; skip year one, then a light pull the second spring.
- Seed · ~2 years · 2–4 lbs/plant — Seed-grown — cheap but slow and variable; 2–3 years to a first harvest.
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