Which kind of bean should I grow?
Snap beans are eaten pod and all, shell beans are harvested for the seeds while still soft, and dry beans are left to mature and dry on the plant. Bush types are compact and produce over a short window, while pole types climb a support and produce longer.
Choose by space and use. Pole beans save ground area but need a sturdy trellis, while bush beans suit succession planting.
Beans also differ in how they grow after harvest. Snap and shell beans want regular picking, while dry beans are a one-time harvest at the end of the season, which suits gardeners who prefer less frequent work.
- Snap: tender pods
- Shell: fresh seeds
- Dry: stored seeds
- Pole: needs support
When do I plant beans?
Beans are frost tender and rot in cold, wet soil. Sow after the last spring frost date and when soil has warmed. Your extension office can supply local frost dates.
Plant every few weeks for continuous harvest of bush types, stopping early enough that plants can produce before your first fall frost.
If you are not sure about soil temperature, push a soil thermometer a couple of inches into the ground in the morning for several days. Seeds sown into cold, wet soil are likely to rot before they sprout, so waiting a week costs little.
How do I sow and space them?
Sow seed at the depth and spacing on the packet in well-drained soil. Beans do not like to be transplanted, so direct sowing is usual. Thin seedlings if needed.
Beans fix some of their own nitrogen. Seed treated with inoculant may help in new beds, and your extension office can say whether it is worthwhile locally. A soil test avoids excess nitrogen, which gives leaf growth at the expense of pods.
Keep seed in a cool, dry place and use fresh seed when possible, since old seed germinates poorly. Sow a few extra seeds at the end of the row to fill gaps, and cover seed with loose soil instead of packing it down.
How should I water and care for them?
Beans need steady moisture, especially at flowering and pod set, when drought stress can cause flowers to drop. Water at the base and mulch. Avoid working among wet plants, which can spread bean diseases.
Weed carefully by hand or with a shallow hoe, since roots are shallow.
Remember that beans have shallow roots. Mulch and light, careful weeding protect them, while deep cultivation near plants can injure roots. A thin layer of straw also keeps soil cooler during hot weather.
- Water at the base, not the leaves
- Mulch to keep roots cool
- Weed lightly by hand
- Avoid touching wet plants
How do I support pole beans?
Set poles, string or netting at planting time and make sure they can bear the weight of mature vines and wind. Guide young shoots to the support. Tall teepees and trellises make harvest easier.
Place trellises so they do not shade shorter crops.
Stakes and trellises should be installed before or at planting. If you build a teepee, make the legs deep and firm, since wet soil and heavy foliage can topple weak supports in a storm.
What pests and diseases are common?
Bean beetles, aphids, leafhoppers and rust or blight diseases can all affect plants. Check leaves regularly and remove problem foliage. Rotate where beans grow each year.
Ask your extension office about local pests and which varieties resist common diseases. Follow any product label exactly, if you use one.
If a bean planting stalls from cold or rain, replant rather than waiting. Seed is inexpensive and a second sowing in warm soil usually catches up quickly.
- Chewed leaves and holes
- Orange pustules on leaf undersides
- Dark spots on pods
- Curled, sticky leaves from aphids
When and how do I harvest?
Pick snap beans when pods are firm and snap cleanly, before the seeds bulge. Frequent picking encourages more pods. Pick gently with two hands so you do not pull up the plant.
For dry beans, wait until pods are dry and brittle, shell them and make sure seeds are fully dry before storing. Store in a cool, dry, pest-proof container.
For saving seed, ask your extension office about the best varieties and how to dry and store seeds. Label containers with variety and year, and keep them away from moisture and mice.
Key takeaways
- Sow beans after frost in warm soil
- Pick a type that fits your space
- Water steadily during flowering
- Pick often to keep plants producing
Sources and further reading
Last reviewed: November 12, 2026. Written by the Homestead & Small Farm Editorial Team. See our editorial policy.