Soil requirements
- Compost is enough in a new raised-bed mix. Extra nitrogen makes vines and few pods.
- Inoculant is optional; it can help in beds that have never grown beans.
Watering
- Keep moisture even from flowering onward.
- Avoid wetting leaves in humid regions if rust or mildew shows up.
Sunlight
Full sun. Pole beans on the north side of a bed so they do not shade lettuce all day.
Planting
- Direct-sow after the last frost when soil is warm. Beans rot in cold ground.
- Sow a second bush-bean row 3 weeks later for a longer harvest.
Spacing
- Bush: 4–6 inches, or 9 plants per square foot.
- Pole: a single row 4–6 inches apart along the trellis.
Common problems
Mexican bean beetle
Copper beetles and spiny larvae skeletonize leaves. Hand-pick early; row cover on young plants.
No pods
Usually heat, drought at bloom, or too much nitrogen.
Helpful tools
- Trellis for pole types
- See the trellis buying guide
Product links will be added when independently researched. See the garden tools hub for buying criteria.
Frequently asked questions
Bush or pole beans in a 4×8 bed?
Bush beans are simpler. Pole beans yield more over time if you have a stout trellis on one long side.