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Growing climbing beans

Phaseolus vulgaris. A warm-season climber grown for its pods, sown where it grows at the foot of a tall frame or wigwam. It wants sun, warmth and steady water once it flowers, crops for weeks if picked often, and frost kills it. These steps work anywhere: they go by soil and weather, not by month. Also called pole beans (US and Canada), climbing French beans (UK and Ireland).

How a climbing bean grows

1. 
   SowSeeds at the foot of the caneDay 0
2. 
   UpA hooked stem lifts the seed leaves1–2 weeks
3. 
   Wind onGuide the tip round the cane2–3 weeks
4. 
   ClimbMulch down, the vine twines up3–6 weeks
5. 
   Pinch outTip off at the top of the cane6–8 weeks
6. 
   FlowerSmall flowers at the leaf joints7–9 weeks
7. 
   PodsSlim green pods lengthenA week or two after flowering
8. 
   PickEvery 2–3 days, for weeksFrom about 9–12 weeks

Times run from sowing and vary with the variety and the weather. Picked often, the plants keep cropping while the weather stays warm.

Growing it, step by step

1. Is it right for you?

   • Climbing beans need about three months of warm, frost-free weather: days around 18–29°C (65–85°F).
   • Frost kills them, and the seed rots in cold, wet soil. In hot spells above about 32°C (90°F), or when the soil dries out, the flowers drop without making pods.
   • They climb 2 m (6–7 ft) or more, so they need a tall, sturdy frame. In return they take little ground and crop for longer than bush beans. In a pot, choose one at least 75 cm (30 in) wide and 45 cm (18 in) deep, with a wigwam of canes.

2. When to plant

   Sow where they are to grow once the soil is at least 16°C (60°F) and the last frost has passed. In colder soil the seed comes up poorly or rots. In warm soil the seedlings are up in one to two weeks.

   Short, cool summers: warm the soil under a cover for a few weeks first, or sow in small pots indoors and plant out after the last frost. Mild climates: sow from late spring; a second sowing about a month later keeps the harvest going. Hot or subtropical places: sow in early spring and again in late summer, so the plants flower outside the hottest weeks. Tropics: the cooler, drier months.

3. Prepare the bed

   • A sunny spot sheltered from strong wind, with deep, well-drained soil. Dig in plenty of compost a few weeks before sowing.
   • Slightly acid to neutral soil suits them, pH 6.0–7.0. See soil pH.
   • Put the supports up before you sow, so you don't damage the roots later. Use canes or poles 2–2.5 m (7–8 ft) tall: a wigwam of four or five tied at the top, or a double row tied to a cane across the top. A sturdy trellis or fence works too.
   • Avoid beds that grew beans or peas in the last three years. They share the same diseases.

4. Sow

   • Sow 2.5–4 cm (1–1½ in) deep, one or two seeds at the foot of each cane, where they are to grow.
   • Space the plants 15 cm (6 in) apart, one to each cane, in rows 60 cm (24 in) apart.
   • Sow into moist soil, not wet. Bean seed rots in cold, soggy soil.
   • For an early start, sow one seed per small pot indoors. Harden the plants off and plant them out after the last frost, when they are about 8 cm (3 in) tall, one to each cane. Handle the roots gently.

5. Get it started

   • Water once after sowing, then only if the soil dries out until the seedlings are up.
   • If two seedlings come up at one cane, keep the stronger one and snip the other off at soil level.
   • Protect seedlings from slugs and snails, and cover them with fleece if a cold night is forecast.
   • About two weeks after sowing, wind each young stem gently around its cane. Check now and then that none have strayed.

6. Keep it growing

   • Water: a deep soak at the base about twice a week in dry weather, and generously from the first flowers right through picking. Dry soil at flowering makes the flowers drop and the pods tough. Pots dry out fast: check them every day in hot weather.
   • Mulch: about two weeks after sowing, once the soil is warm, spread compost about 5 cm (2 in) deep to keep the roots cool and moist and the weeds down. Keep it off the stems.
   • Feed: none needed in soil dug with compost: beans make their own nitrogen, and extra nitrogen grows leaves instead of pods. In pots, a high-potash liquid feed every two weeks from the first flowers until picking ends.
   • Tie in: after windy weather, tie in any stems that have blown loose from their supports.
   • Pinch out the top: when the plants reach the top of their supports, pinch out the growing tip. Side shoots then form lower down, which keeps the crop within reach and the frame from getting top-heavy.

7. Watch for problems

   The common ones, with a Garden help page each where there is one:

   AphidsSlugs and snailsBean seed flyBean flyMexican bean beetleSpider mitesStink bugsRustHalo blightAnthracnosePowdery mildewMosaic virusRoot rotPoor pod set

8. Harvest

   • Pick when the pods are about 15–20 cm (6–8 in) long and snap cleanly, before the beans inside show through.
   • Pick every two or three days. Pods left to swell stop new flowers forming; picked often, the plants crop for weeks.
   • Hold the vine with one hand and pick with the other, so you don't pull it off its support. Look under the leaves: pods hide.

9. After harvest

   • Keep fresh pods in a bag in the fridge and use them within about a week. They freeze well if blanched first.
   • To save seed, leave a few pods on the plant until they are dry and papery, then shell the beans and keep them in a paper bag somewhere cool and dry. The flowers pollinate themselves, so the seed usually comes true.
   • When the plants finish, cut them off at ground level and leave the roots in the soil to rot down. Bin diseased plants rather than composting them.
   • Next in that bed: cabbage family crops or leafy greens. Keep beans and peas out for three years.

All vegetables

Sources

• RHS: How to grow French beans
• Utah State University Extension: How to grow beans in your garden
• University of Georgia Extension: Home garden green beans
• UConn Home and Garden Education Center: Snap beans
• Sustainable Gardening Australia: Growing beans

Facts checked Wednesday 21 October 2026. General guidance only: local advice comes first.