Field guide
How to grow green beans: planting, care, and harvest guide
Green Beans typically reaches first harvest in 50–65 days. This guide covers when to plant by USDA zone, common pests, harvest cues, and companion plants where relevant.
Open plannerWhen to plant green beans by USDA zone group
- USDA Zones 1–4 — June
- USDA Zones 5–6 — May to June
- USDA Zones 7–8 — April to June
- USDA Zones 9–10 — March to May
- USDA Zones 11–13 — February to March
Companion plants
Good companions: Sweet Corn, Winter Squash, Carrots, Cucumbers
Avoid planting with: Onions, Garlic, Pepper (Sweet/Bell)
Harvest
When to pick
- Pods snap cleanly when bent
- Beans inside are still small — you shouldn't see pronounced bumps
- Pods are firm and about pencil-thickness
- Over-mature beans are tough and stringy
How: Hold the stem with one hand, pull the pod with the other — or snip with scissors. Pick every 2-3 days to keep plants producing.
Storage: Refrigerate in a bag for 4-5 days. Blanch and freeze for long-term storage. Excellent for canning and pickling.
Common pests and problems
Mexican Bean Beetle
Signs: Copper-colored beetles with spots, skeletonized leaves, yellow spiny larvae on leaf undersides
Control: Hand-pick adults and larvae. Row covers early in the season. Neem oil or spinosad. Plant bush beans early to avoid peak beetle season.
Aphids
Signs: Curled leaves, black sooty mold, ant activity
Control: Water spray, insecticidal soap.
Bean Rust
Signs: Red-brown powdery spots on leaves
Control: Remove affected leaves. Improve air circulation. Don't overhead water. Choose resistant varieties.
About this field guide
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