How to Grow Fava Beans
Vicia faba
A cold-hardy cool-season legume that fixes nitrogen and produces rich, buttery beans unlike any other.
By the Plants by Zone Editorial Team · Reviewed June 1, 2026
About fava beans
Fava beans, also called broad beans, are a completely different plant from common garden beans — they belong to the genus Vicia and thrive in cold weather that would kill a green bean plant. One of the oldest cultivated crops on earth, favas produce large, cushioned pods enclosing meaty, nutty-flavored beans. As a bonus, they fix atmospheric nitrogen in the soil, improving fertility for crops that follow.
When to plant and harvest fava beans
Timing is relative to your frost dates. Find your USDA zone for exact dates, or browse the month-by-month calendars.
Start seeds indoors
4–6 weeks before last frost (optional; direct-sow is strongly preferred)
Transplant outdoors
4–6 weeks before last frost once soil is workable and at least 40°F
Direct sow
6–8 weeks before last frost in spring; or in fall (zones 8–10) for overwintering and a late-spring harvest
Harvest
Late spring, when pods are plump and beans firm inside — harvest before summer heat arrives
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How to grow fava beans step by step
- 1
Sow seeds 1½–2 in deep and 4–6 in apart as early as soil is workable in spring — they germinate in 40°F soil and dislike heat.
- 2
Set up stakes or twiggy branch supports at planting time; plants grow 3–5 ft tall and topple in wind.
- 3
Pinch out the growing tip once the plant has 6–8 flower clusters — this concentrates energy into pod development and deters black bean aphids.
- 4
Water steadily through flowering and pod fill; drought during these stages sharply reduces yield.
- 5
Harvest pods when they are visibly plump and beans feel round and firm through the pod wall, before skins inside turn gray or leathery.
- 6
After harvest, cut stems to the ground but leave the nitrogen-fixing roots in the soil to enrich it for the next crop.
Common problems growing fava beans
⚠ Black bean aphids colonizing shoot tips
Pinch off infested growing tips as soon as you spot them — this is the most effective control and also encourages pod set.
⚠ Chocolate spot (brown blotches on leaves and pods)
A fungal disease favored by wet, cold weather and poor airflow. Improve drainage, space plants adequately, and avoid overhead watering.
⚠ Poor or rotting germination
Most often caused by soil that is too cold and waterlogged. Sow in well-drained soil once temperatures are reliably above 40°F and do not overwater.
⚠ Rust (orange pustules on leaf undersides)
Remove and dispose of affected leaves promptly. Improve airflow by spacing plants adequately. Severe infections are uncommon until the crop is nearly mature.
✗ Keep away from
🧺 Harvesting fava beans
Pick fava bean pods when they are plump and the beans inside feel round through the pod wall, but before the inner skins turn gray and leathery — that stage means past peak sweetness. Young beans eaten fresh are delicate and buttery; mature beans are starchier and more robust, better suited to soups. For the finest texture, blanch shelled beans briefly, then slip each bean free of its inner skin to reveal the bright green seed inside. If pods become too tough to eat fresh, shell the beans fully, spread them to dry, and store for winter cooking.
Fava Beans: frequently asked questions
When should you plant fava beans?＋
In most regions you start seeds indoors 4–6 weeks before last frost (optional; direct-sow is strongly preferred), then transplant 4–6 weeks before last frost once soil is workable and at least 40°F — or direct sow 6–8 weeks before last frost in spring; or in fall (zones 8–10) for overwintering and a late-spring harvest. Timing is relative to your last frost, so find your USDA hardiness zone for the exact planting dates where you live.
Are fava beans the same as lima beans?＋
No — fava beans (Vicia faba) and lima beans (Phaseolus lunatus) are entirely different species. Favas are European in origin, grow in cool weather, and have large flat seeds with a distinctive earthy, buttery flavor; limas are a warm-season American crop with a milder, creamier taste. They look different, taste different, and are grown in opposite seasons.
Can I grow fava beans in summer?＋
No — fava beans stop flowering and producing once temperatures regularly exceed 75–80°F. They are strictly a cool-season crop, best started in early spring (or fall-sown in zones 8–10 for overwintering) so the harvest is complete before summer heat arrives.
Sources & review
Written and maintained by the Plants by Zone Editorial Team. Planting times are based on USDA hardiness zones and NOAA frost-date normals, with care guidance drawn from Cooperative Extension sources. Last reviewed June 1, 2026.
USDA Plant Hardiness Zone MapNOAA U.S. climate normalsCooperative Extension
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