Thompson & Morgan Runner Bean Benchmaster - 1 Seed Packet

A spectacular crop that delivers delicious runner beans as well as pretty red flowers during the s...

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This guide is for home gardeners looking to grow high-yield runner beans with attractive flowers. The Thompson & Morgan Runner Bean 'Benchmaster' offers a spectacular crop of long, slender pods and vibrant red blooms, providing a good source of vitamins and fiber. A caveat to consider is its need for support and protection from strong winds.

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Model Part Number24345
BrandThompson & Morgan

Extended Product Information

FAQs

What is the best time to sow Runner Bean 'Benchmaster' seeds?

You can sow seeds indoors from mid-April or direct sow outdoors from late May to July.

How deep should I plant the seeds?

Sow seeds at a depth of 5cm (2") for both indoor and outdoor planting.

What are the ideal growing conditions?

Runner Bean 'Benchmaster' thrives in rich, well-drained soil in full sun or semi-shade, with protection from strong winds.

Do these beans require support?

Yes, runner beans need support such as garden canes, strings, or netting to climb.

How often should I water and feed the plants?

Water regularly, especially as flowers develop, and provide a liquid feed every 14 days during mid-summer.

Can I grow these beans in containers?

While the description focuses on garden beds and wigwams, with adequate support and watering, container growing is possible.

What is the height and spread of this variety?

The plant can reach a height of up to 300cm (10') and spread up to 30cm (12").

Are these beans suitable for exhibition?

Yes, thinning to one pod per flower stem can enhance the length for exhibition purposes.

Troubleshooting

Seeds fail to germinate

Ensure consistent temperature (18-20°C) for indoor sowing or adequate soil warmth for outdoor sowing. Check compost drainage and avoid overwatering.

Plants producing few or no beans

Ensure plants receive adequate water and regular feeding during mid-summer. Check for pollination issues; companion planting with bee-attracting flowers can help.

Poor pod development or length

Thinning to one pod per flower stem can encourage longer pods. Ensure plants have sufficient nutrients and water, and are planted in a sunny position.

Aphid infestation

Companion planting with nasturtiums can help deter aphids. Alternatively, a strong jet of water or insecticidal soap can be used.

Plants damaged by wind

Ensure adequate support structures are in place and plants are located in a spot protected from strong winds. Mulching also helps stabilize plants.

Pros and Cons

Pros

  • Produces very long pods (over 40cm).
  • Attractive ornamental red flowers.
  • Rich in essential nutrients and fiber.
  • Beans freeze well for later use.
  • Good potential for exhibition growing.
  • Suitable for companion planting to improve garden health.

Cons

  • Requires support structures like canes or netting.
  • Needs protection from strong winds.
  • Requires consistent watering and feeding.
  • Cannot be grown in freshly manured soil.
  • Half-hardy, requiring protection from frost.

Setup, Compatibility & Care

Indoor Sowing (Mid-April):

  1. Sow seeds 5cm (2") deep in 7.5cm (3") pots or trays filled with free-draining seed compost.
  2. Place in a propagator or seal container in a plastic bag.
  3. Maintain a temperature of 18-20°C (64-68°F) until germination (7-10 days).
  4. Grow on in cooler conditions until all risk of frost has passed.
  5. Gradually acclimatize plants to outdoor conditions over 7-10 days.

Outdoor Sowing (Late May to July):

  1. Sow seeds directly into the ground at a depth of 5cm (2") and 30cm (12") apart.
  2. If planting in rows, space them 1.5m (5') apart.
  3. Alternatively, sow on a wigwam structure.

Planting Outdoors:

  • Choose rich, fertile, well-drained soil in full sun or semi-shade.
  • Ensure the location is protected from strong winds.
  • Avoid freshly manured soil; it can encourage leaf growth over bean production.
  • Provide support (garden canes, strings, netting) at the time of planting.

Care:

  • Apply a thick mulch of organic matter around the base to conserve moisture and suppress weeds.
  • Water regularly, especially as flowers develop.
  • Feed with a liquid feed every 14 days during mid-summer.

Compatibility:

  • Ideal companion plants include sweet peas (attract pollinators) and nasturtiums (deter aphids).