Crop guide · The pea and bean family

How to grow Bush Bean

A compact, self-supporting bean that goes from seed to first picking in about seven weeks and sets most of its pods in one heavy flush.

Phaseolus vulgaris 'Bush' · also called Snap bean, String bean

Full sun Beginner Frost-tender
Sun
Full sun
Light afternoon shade during flowering helps pods set once days run above 90 °F (32 °C)
Frost
Tender
Killed by the first light frost, and seedlings sulk below 50 °F (10 °C). Sow only into warm soil.
Spacing
4 in
10 cm between plants
Sow depth
1 in
25 mm
To harvest
50–60 days
counted from sowing
Timing

When to plant Bush Bean

Windows are counted from the average date of your last spring frost.

Summer:every 2–3 weeks through midsummer for a steady supply.
Fall planting:10–12 weeks before first fall frost for a last picking.
Too late?Stop sowing about 10–12 weeks before first fall frost. Sowings that flower above 90 °F (32 °C) drop blossoms and set few pods.
Background

Why grow Bush Bean

It needs no trellis, no transplanting, and almost no feeding, and a short row planted every two to three weeks keeps a household in tender pods all summer.

A little history. Bush types were selected to stop extending after a few sets of leaves, so they flower early and concentrate their pods. Roots partner with soil bacteria that capture nitrogen from the air.

The season, step by step

From planting to harvest

Sow outside

1–2 weeks after last frost

Sow seeds 1 inch (25 mm) deep, and aim for 4 inches (10 cm) between plants once thinned. Water the bed well before sowing, then keep it evenly moist, not soggy. Cold wet soil rots seed before it sprouts. Seedlings emerge in 5–10 days.

Best soil temp 70–85 °F (21–29 °C) Minimum 60 °F (16 °C) Emerges in 5–10 days

Water and feed

All season

Soak deeply once or twice a week; never let the bed dry out while flowering. Water when the top inch of soil feels dry. Aim for about 1 inch per week including rain.

Work compost in before sowing; side-dress once at first flower only if leaves look pale. What to use: compost or a low-nitrogen blend such as 3–5-5; skip high-nitrogen feeds.

Prune and maintain

As it grows

No pruning needed. Stay out of the row while leaves are wet — brushing past wet foliage spreads leaf diseases down the bed.

Harvest and store

50–60 days from sowing

It's ready when pods are firm, snap cleanly in half, and are pencil-thick with seeds still barely visible as bumps through the wall. Hold the stem with one hand and pull the pod off with the other, or pinch it free at the small stalk. Pick every two days at peak — pods left to swell shut down further flowering.

Unwashed in a perforated bag in the refrigerator for up to a week. Wash just before cooking; wet pods spot and soften fast.

Companions

Good neighbours, bad neighbours

Plant it with

Celery

Gardeners have long paired celery with bush beans, and the two share the steady moisture and rich soil both want without shading each other out. No mechanism has been demonstrated, but the beans do leave nitrogen behind in the bed for later crops.

Swiss Chard

Chard sends a thick taproot well below the beans' shallow fibrous mat, so the two often share a bed without fighting over water. Chard also stands after the beans finish, which keeps the ground covered.

Sweet Corn

Beans host soil bacteria that capture nitrogen from the air, most of which is released as the roots break down after harvest — a real benefit to the hungry corn that follows in that bed the next season rather than to the corn growing beside them now.

Cucumber

Cucumbers root deep and run sideways while bush beans stay compact and shallow, so a row of beans along a cucumber patch usually fills space rather than competing for it.

Nasturtium

Aphids often build up on nasturtium before they move to beans, which can concentrate the problem where you can see it. Pull or hose down the loaded nasturtium stems — a trap crop only helps if you deal with what it catches.

Summer Savory

Summer savory is said to keep bean beetles down, a pairing repeated in kitchen-garden charts for centuries without controlled evidence behind it. It is a compact, undemanding neighbour either way.

French Marigold

The open flowers feed hoverflies and tiny parasitic wasps that work over bean aphids. Note that French marigold's effect on root-knot nematodes only shows up when it is planted thickly as a full stand and turned into the soil, not as a few edge plants.

Keep it away from

The Onion Family

Old charts keep beans away from onions, garlic, and leeks, usually with talk of stunted growth. No mechanism has been demonstrated in trials, so treat it as tradition rather than a rule; if you plant them together and the beans grow well, they grow well.

Fennel

Fennel roots release compounds that reliably stunt most garden vegetables, beans included. Grow it in its own corner or a pot well away from the bean row — its flowers are excellent food for hoverflies and tiny parasitic wasps, so it earns a place at a distance.

Sunflower

A sunflower row out-muscles bush beans for light, water, and root space, and its residues can slow nearby seedlings. Keep sunflowers on the north side of the plot and several feet clear of the bean row.

Peppermint

Mint spreads by underground runners and will thread through a bean row within a season, making picking and bed cleanup difficult. Grow it in a sunken pot or a separate bed.

Shallot

Beans and the onion family are another century-old chart separation with no demonstrated cause. Practically, beans also fill in and shade low shallot tops, so give shallots their own open row.

See Bush Bean in the full companion chart →

Crop rotation

After this crop

Family rest

Give the pea and bean family 2 years away from this spot before any of its relatives return.

Good next crops

The cabbage family, the beet family or grasses and grains thrive in this ground next season.

Beans bank nitrogen in root nodules that mostly feeds the next crop as the roots break down — cut plants at the soil line and leave the roots in place. Follow with cabbage-family greens, beets or chard, or a grain. Keep pea- and bean-family crops out of this bed for 2 years.

Trouble to watch for

Pests and diseases

Pests

Mexican bean beetle

Sign
Leaves skeletonized to lace from the underside; yellow spiny grubs and copper-colored adults with black spots.
Fix
Crush egg clusters and grubs on leaf undersides twice a week; pull and bag heavily chewed plants after the last picking.

Bean leaf beetle

Sign
Round holes chewed through leaves and shallow scars on young pods; tan to reddish beetles with black triangle behind the head.
Fix
Cover seedlings with row cover until first flowers open, then remove it for picking.

Aphids

Sign
Curled shoot tips, sticky leaves, and clusters of small green or black insects on stems and new growth.
Fix
Knock them off with a hard water spray on three mornings running; leave ladybugs and lacewings alone to finish the job.

Spider mites

Sign
Fine pale stippling on leaves, dusty bronze cast, and faint webbing at leaf joints in hot dry weather.
Fix
Spray leaf undersides with water in the morning and keep the bed evenly watered; mites build fastest on drought-stressed plants.

Diseases

Anthracnose

Sign
Dark sunken spots with reddish borders on pods, and black streaks along leaf veins and stems.
Prevent
Sow certified disease-free seed, never save seed from a spotted crop, and keep out of the row while foliage is wet.

Bacterial blight

Sign
Water-soaked leaf spots that dry brown with a yellow halo; pods show greasy, slightly sunken patches.
Prevent
Use fresh clean seed, water at soil level rather than overhead, and pull infected plants promptly.

Bean rust

Sign
Small rusty-orange powdery pustules on leaf undersides, later turning dark; heavy infection drops leaves early.
Prevent
Space rows for airflow, avoid overhead evening watering, and remove all plant debris at season's end.

White mold

Sign
Watery stem and pod rot with cottony white growth, often where the canopy stays damp near the soil.
Prevent
Thin to full spacing, mulch to keep pods off wet soil, and avoid dense plantings in shaded, poorly drained beds.
Good to know:Dry mature beans must be fully cooked — raw or undercooked dry seeds cause stomach upset. Leaves and stems are not eaten.
FAQ

Common questions about Bush Bean

When should I plant Bush Bean?
Spring: 1–2 weeks after last frost, once soil holds 60 °F (16 °C). Summer: every 2–3 weeks through midsummer for a steady supply.
How long until Bush Bean is ready to harvest?
50–60 days, counted from sowing. It's ready when pods are firm, snap cleanly in half, and are pencil-thick with seeds still barely visible as bumps through the wall.
Can I grow Bush Bean in a container?
Either works — needs 8–10 inches of soil depth and full sun. In containers: 5-gallon pot or a 10-inch-deep window box, three plants per pot.
How often should I water Bush Bean?
Soak deeply once or twice a week; never let the bed dry out while flowering. Water when the top inch of soil feels dry.
Is any part of Bush Bean unsafe to eat?
Dry mature beans must be fully cooked — raw or undercooked dry seeds cause stomach upset. Leaves and stems are not eaten.
How should I store Bush Bean after harvest?
Unwashed in a perforated bag in the refrigerator for up to a week. Wash just before cooking; wet pods spot and soften fast.

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