Eating Garden

How to Grow Green Beans

Phaseolus vulgaris

A warm-season crop picked while the pods are crisp and the seeds inside are still small.

By · Updated · How we source and review advice

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At a glance

  • Difficulty

    Easy

    1 of 5 · More shovels, more care

  • Sunlight

    Full sun

  • Water

    Average thirst

  • First harvest

    50 to 60 days

    from sowing

  • Growing in a pot

    Suitable for pots

  • Plant spacing

    3 to 4 in apart

More about this plant

Sow beans directly into warm soil after frost. Choose compact bush plants or give pole beans a tall trellis, keep water steady and pick tender pods often.

  • Grows for one season.
  • Can grow in raised beds, the open ground.
  • Fine in a small space.
  • A good one to grow together with children.
  • Ready to pick quickly.

Make it your plan

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What are you starting with?
Where will it grow?

Your plan, starting Nov 10, 2026

Estimated harvest: Dec 30, 2026 – Jan 9, 2027. Add your location to compare this date with local planting windows. Your chosen date stays the same.

Add your location to compare this date with local planting windows. Your chosen date stays the same.

Estimated first harvest

Dec 30, 2026 – Jan 9, 2027

Counted from sowing. Variety, plant age, weather, and care can change this estimate.

Pods are full size, firm, crisp and tender, but the seeds inside have not swollen enough to make large bumps.

Warm, frost-free weather with soil above about 60F. Cold, wet soil can rot seed, while hot, dry weather can make flowers drop.

First, gather a few things

  • Green Beans seeds
  • A draining pot with room for the roots
  • Potting mix that drains well
  • A watering can or hose
  • Pole beans need a sturdy trellis about six to eight feet tall. Bush beans usually need no support.

Get ready

Do these before you put the plant or seeds in place.

  1. Start here

    1. Choose bush or pole beans

    Bush beans stay compact and crop quickly. Pole beans climb and produce over a longer time.

  2. 2. Wait for warm soil

    Sow after frost danger when the soil is above about 60F.

Start or plant it

Follow the steps for the way you chose to start.

  1. 1. Plant an inch deep

    Space seeds about 3 to 4 inches apart and follow the packet for row width.

  2. 2. Add pole support nowOptional

    Put a six- to eight-foot trellis in place at sowing so roots are not disturbed later.

Water

Check the soil first. Heat, rain, and pots can change how often this plant needs water.

  1. 1. Check before you water

    Push a finger about 1 inch into the soil. Water when it feels dry there.

  2. 2. Water the roots

    Water slowly at the base until the soil feels moist a few inches down. For a pot, water until a little runs out of the drainage holes.

    Keep soil evenly moist, especially while flowers and pods form. One to two inches a week may be needed in dry weather, given deeply rather than as daily splashes.

Need help judging moisture? Read how to check the soil and water the roots.

If the plant looks unhappy

  • Too dry

    Flowers fall, pods stay small or become stringy and leaves wilt.

    If the soil is dry, water deeply and check it again tomorrow.

  • Too wet

    Seed can rot in cold wet ground and roots can fail in soggy soil.

    If the soil is wet, wait before watering again and check that excess water can drain away.

While it grows

Check on your plant and do these jobs as they come up.

Looking after it

  • FeedingRarely needs feedingUse compost and a soil test. Avoid routine nitrogen feeding because it makes leaves and delays pods.
  • NitrogenToo much nitrogen gives leaves instead of food
  • SupportA trellisPole beans need a sturdy trellis about six to eight feet tall. Bush beans usually need no support.
  • ThinningThin seedlings to 4 in apartCrowded seedlings stay small. Pull the weaker ones and keep the strongest.
  • MulchMulch after the soil warms to hold moisture and keep pods cleaner.

Pick and store it

Use the plant's signs of readiness, then harvest gently.

  1. 1. Check if it is ready

    Pods are full size, firm, crisp and tender, but the seeds inside have not swollen enough to make large bumps.

  2. 2. Pick it

    Hold the stem and snap or clip each pod without tearing the plant. Pick every few days to keep new pods coming.

  3. 3. Keep it fresh

    Use fresh beans right away for best quality, or refrigerate them in a perforated bag for up to about one week.

More picking tips

  1. 1. Pick tender pods often

    Harvest before seeds bulge and check again every few days.

Common problems

    Common mistakes

    • Sowing into cold wet ground

      Bean seed can rot before it sprouts. Wait for warm soil after frost.

    • Feeding too much nitrogen

      Heavy feeding makes leaves and delays flowers and pods.

    • Leaving mature pods on the plant

      Old pods turn stringy and slow new production. Pick regularly.

    Companion plants for green beans

    Some of this is measured in trials and some is long-standing garden practice. Each note below says which it is.

    Good together

    Extension programs recommend this pairing:

    • CabbageBeans fix nitrogen in the soil, which the RHS says helps leafy crops such as cabbage do well.Recommended by extension programs

    Gardeners have long paired these:

    • Sweet cornIn the traditional Three Sisters planting, corn stalks hold up climbing beans; it saves staking, but higher yields are not proven.Traditional garden practice
    How to choose companion plants

    Questions about green beans

    Tap a question to see the answer.

    Will green beans grow where I live?

    Warm, frost-free weather with soil above about 60F. Cold, wet soil can rot seed, while hot, dry weather can make flowers drop.

    • LightFull sun
    • ShadeNeeds full light
    • SeasonA warm season cropUsually grown in spring or summer.
    • FrostFrost kills it
    • HeatCopes with heat

    What soil is best for green beans?

    • Soil pH6.0 to 7.0A cheap test kit from a garden centre will tell you yours.
    • Soil it likesLoam, Silt, Clay
    • DrainageWants well drained ground
    • RichnessHappy in poor ground

    Use fertile, well-drained soil. Finished compost can improve an ordinary bed before planting.

    Test the soil before feeding. Beans make their own usable nitrogen with root bacteria, so heavy nitrogen is usually a mistake.

    Before changing your soil, learn how to test soil acidity and understand the result.

    When and how deep do I plant green beans?

    When to plant

    Match these relative steps to your local seasons. Where frost applies, use the last freezing night in spring and the first in fall. In frost-free climates, follow trusted local seasonal guidance.

    • Sow outdoors 1 to 3 weeks after your last spring frostSow after frost danger when the soil is above 60F. Follow the seed packet if it calls for warmer soil.
    • Ready to pick about 50 to 60 days from sowing.

    What you need

    • How to start itFrom seedYou can sow it straight into the ground.
    • How deep to plant1 in
      Planting depth: 1 in below the soil surface. Drawing is not to scale.
    • How far apart3 to 4 inLeave 18 to 36 in between rows.
      Leave 3 to 4 in between plants and 18 to 36 in between rows. View from above; drawing is not to scale.

    What happens to green beans through the year?

    Measured from your last spring frost, because seasons differ from garden to garden. In frost-free climates, use trusted local seasonal guidance alongside these relative steps.

    1. Sow outdoors

      1 to 3 weeks after your last spring frost

    How do I give green beans a better start?

    Simple ways to help your green beans grow, from the soil up.

    • Start with good soil

      Use fertile, well-drained soil. Finished compost can improve an ordinary bed before planting.

    • Give the soil a cover

      Mulch after the soil warms to hold moisture and keep pods cleaner.

    • Support the branches

      Pole beans need a sturdy trellis about six to eight feet tall. Bush beans usually need no support.

    • Make room to grow

      Thin seedlings to 4 inches apart.

    Test the soil before feeding. Beans make their own usable nitrogen with root bacteria, so heavy nitrogen is usually a mistake.

    Do green beans need a trellis?

    Pole beans do. Bush beans usually stand on their own, though a low support can keep plants tidy.

    Why did my bean seed not sprout?

    Cold, wet soil can rot the seed. Wait until soil is above about 60F and drains well.

    When are green beans ready?

    Pick when pods are full size and crisp but the seeds inside have not made large bumps.

    Why are my plants leafy with few beans?

    Too much nitrogen can delay flowers and pods. Stop feeding and let the plant grow.

    Helpful gardening guides

    Dig into the next thing you need, from starting a garden to getting watering right.

    Starting your first garden? Choose your space and get it ready, then plan local planting times.

    Browse all gardening guides

    Also filed under: Vegetables

    Where this came from

    Advice varies with your climate and variety. Check the sources behind each section.

    Sources & review dates
    Timing
    University of Maryland Extension, Growing Beans in a Home Garden · checked 2026-09-15
    University of Minnesota Extension, Growing peppers · checked 2026-09-24 · Where frost is rare, warm-season crops are timed to months whose nights usually stay above 50°F.
    UC Master Gardeners of Placer County, University of California Agriculture and Natural Resources, Tomato blossom drop · checked 2026-09-24 · Where frost is rare, warm-season crops avoid months whose nights usually stay above 75°F.
    University of California Agriculture and Natural Resources, UC Master Gardener Program, Time of planting · checked 2026-09-24 · Where frost is rare, warm-season crops are timed to months with days between 65°F and 95°F.
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