Bean, Runner Seeds

How to Runner Beans

The essential guide to growing kale from seed; with notes on germination, cultivation, harvest and even kitchen uses.

Seeds per gram (Sds/g): 1–2
Feed Requirements: Low

Growing Notes:

Position & Soil

• Soil Type & Drainage:
• Prefers well-drained soil with moderate organic matter.
• Avoid boggy or waterlogged areas; roots can rot over winter if drainage is poor.
• Sun Exposure:
• Thrives in cooler conditions or partial shade, making it more heat-tolerant than some beans.
• Sheltered spots help protect plants from strong winds.

Sowing & Germination

1. Seed Depth & Timing:
• Sow seeds about 3–5 cm deep once soil temperatures are consistently above 17 °C.
• Germination typically occurs within 7–14 days, depending on temperature.
2. Method:
• Sow directly into the ground after the last frost in cooler climates.
• For an earlier start, sow in pots or modules indoors, then transplant once danger of frost has passed; or
• Soak beans in indoors in water overnight and plant out, this will speed up germination.
3. Spacing & Support:
• Plants can be spaced 20-30 cm with rows 50-60 cm apart.
• Install sturdy stakes, trellis, or a teepee system of at least 2 m high before planting to avoid root disturbance later.

Cultivation & General Care

• Watering:
• Keep soil evenly moist, especially during flowering and pod development.
• Avoid waterlogging, particularly over winter if roots are left in the ground.
• Feeding:
• Runner beans require only light feeding—excessive nitrogen leads to lush foliage but fewer pods.
• Incorporate well-rotted compost or a balanced organic fertilizer into the soil before planting.
• Perennial Habit:
• In climates where temperatures stay above -3 C^o and the soil is well-drained soil, runner beans can survive winter and resprout in spring (hence the nickname “7-year bean”). Cut back once frosts start or when the beans stop growing.
• If winters are harsh or the soil is poorly drained, roots often will not survive.
• Wind Protection:
• Runner beans are vulnerable to wind damage.
• Plant in a sheltered location or use windbreaks to prevent stems from snapping.

Potential Problems

• Wind Damage:
• Stems and leaves can be battered by strong gusts. Choose a protected site or provide screening.
• Overwintering Losses:
• In colder climates or waterlogged soils, the perennial rootstock may not survive.
• General Pests/Diseases:
• Similar to other beans; keep watch for aphids, slugs, and snails.
• Avoid overhead watering late in the day to reduce fungal issues.

Harvesting & Storage

• When to Harvest:
• Pick pods continually while they are young and tender (roughly 12–20 cm long, depending on variety).
• Frequent harvesting encourages more pods and prevents beans from becoming fibrous.
• How to Harvest:
• Gently twist or snip pods from the vine to avoid damaging the plant.
• If pods become mature and develop large seeds, they can toughen, reducing eating quality.
• Storage Tips:
• Use fresh runner beans immediately for best taste.
• They can be blanched and frozen if harvests are plentiful.
• Some beans can be dried, stored and used when needed with soaking or cooking. See our White Dutch Runner Bean.

Additional Tips & Notes

• Ornamental Value:
  • Scarlet Runner varieties produce vibrant red flowers, making them both a food crop and ornamental plant.
• Cooking & Eating:
  • Runner beans are versatile—steam, stir-fry, or use in soups and casseroles.
  • Smaller, tender pods are often sweeter and have better texture than larger, mature pods.
• Bush, Climbing, French and Soy Bean specific tips:
  • Growing notes for bush, climbing and soy beans.

By providing ample support, ensuring good drainage, and harvesting frequently, gardeners can enjoy a prolonged crop of delicious runner beans while benefiting from the plant’s ornamental appeal.