Runner beans are one of the allotment’s great rewards — decorative, high-yielding, and delicious. They need warm soil, rich organic matter, and regular watering.
January
🧤 Plan and prepare
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Choose varieties: traditional tall types (Rhondda Black, Scarlet Emperor, Enorma) or dwarf patio forms (Hestia).
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Plan a sunny, sheltered spot — away from strong winds.
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Start collecting leaf mould or compost to enrich the bed later.
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Check and repair bean poles or cane supports ready for spring.
February
🌱 Soil preparation
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Clear the chosen bed and dig in plenty of compost or well-rotted manure.
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Form a shallow trench (30 cm deep) and fill with kitchen scraps, shredded newspaper, or compost — this will retain moisture later.
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Cover the trench until planting time to let the soil settle.
March
🌿 Early sowing (indoors)
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In the second half of the month, sow seeds in pots or root trainers indoors if you have a heated greenhouse or windowsill.
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Use deep pots (runner beans hate root disturbance).
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Keep at 15–18 °C; germination takes about a week.
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Continue improving soil outdoors by adding compost if weather allows.
April
🌱 Sow under cover / prepare supports
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Keep seedlings growing in good light, hardening off during mild days.
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Outside, build your supports:
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Traditional A-frame: two rows of canes 45 cm apart, tied together at the top.
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Wigwam: for small spaces.
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Cover the bed with fleece or cloches to warm the soil before transplanting.
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In mild southern areas, you can direct-sow late in the month under fleece.
May
☀️ Plant out & sow outdoors
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Main month for sowing.
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Direct-sow 2 seeds per cane about 5 cm deep once frost risk has passed (usually mid- to late-May).
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If transplanting indoor-grown plants, harden off for 7–10 days first.
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Water in well and mulch around plants.
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Protect from slugs and birds until established.
June
💧 Growth and training
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Plants will begin climbing fast.
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Tie shoots to canes until they twine naturally.
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Water deeply 2–3 times per week in dry spells.
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Apply organic liquid feed every 10–14 days once flowers appear.
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Mulch thickly to retain moisture and suppress weeds.
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Pinch out side shoots on dwarf types to focus energy on pods.
July
🌸 Flowering and first harvests
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Keep soil consistently moist — dry roots cause flowers to drop.
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Water in the evening and mist flowers lightly in hot, dry weather to help pollination.
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Harvest young pods when about 15–20 cm long — every 2–3 days encourages new growth.
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Feed weekly with tomato feed or comfrey tea.
August
🥕 Peak harvest
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Pick regularly — don’t let pods get stringy or the plants will stop producing.
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Keep watering and feeding.
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Remove any yellowing leaves to improve airflow.
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Save the best plants for seed: choose healthy vines and leave a few pods to mature fully.
September
🍃 Late harvest & maintenance
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Continue harvesting while the weather is mild.
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Remove any dead or diseased leaves.
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If frost threatens, cover plants with fleece at night.
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Start drying saved seed pods indoors once mature and leathery.
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Begin clearing old growth gradually.
https://youtu.be/GmfEAsNx4b0
October
🍂 End of season
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Final pickings before frost kills the vines.
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Cut plants at ground level — leave roots in the soil; their nodules release nitrogen.
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Add old stems and leaves to the compost heap (unless diseased).
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Spread compost or manure on the bed for next year’s crops.
November–December
🧤 Rest and reflect
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Clean canes and store them dry.
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Plan next year’s rotation — avoid re-planting beans in the same spot for at least 3 years.
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Check stored seed beans; they should be dry and hard before keeping in paper envelopes.
🌼 Key Growing Tips
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Sun: full sun, sheltered from wind.
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Soil: rich, moisture-retentive but free-draining.
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Spacing: one plant per cane, canes 45 cm apart in rows 60 cm apart.
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Feeding: regular potassium feed once flowering begins.
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Watering: consistent deep watering, especially during flowering and pod set.
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Harvest: from July to October.
🌤 Tip of the Season
“Runner beans thrive on kindness — warmth, water, and regular picking.”
