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Runner Bean 'Black Knight'

Phaseolus coccineus

Half-hardy Annual

What is Half-Hardy Annual?

Pods mature to an unusual purple black

Easy to spot and harvest

A decorative addition to the veg plot

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Description How to Grow More Info Delivery

Your runner beans don’t have to be green! Runner Bean ‘Black Knight’ produces pods which start off green but mature to a purple black making them easy to spot and harvest. Attractive bright red flowers. Height: 3m (10'). Spread: 30cm (12").

Companion planting: Try growing runner beans with sweet peas to attract pollinating insects to the flowers, and Nasturtiums to draw aphids away from your crop.

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Companion Planting? ? How to grow Runner Beans

Height Up to 300cm(118in)
Spread Up to 30cm (12in)

Half-hardy Annual

kitchen garden

full sun

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Harvest Months


15 peat-free garden ready plants (KC3124)

Grow runner beans outdoors in rich fertile, well drained soil in full sun or semi shade with protection from strong winds. Avoid freshly manured soil which will promote lush foliage instead of beans. Plant runner beans in rows that are 1.5m (5') apart, or where space is limited, grow beans onto a wigwam structure. Runner beans require support from garden canes, strings or netting which should be put in place at the time of planting.
When growing runner beans provide a thick mulch of organic matter around the base of the plants to help conserve moisture and reduce weed growth. Water runner beans regularly, particularly as the flowers develop, and provide a liquid feed every 14 days during mid-summer. Pinch out the tips of the beans when they reach the top of their supports. Beans can be harvested from July onwards. Pick the beans regularly and a little on the young side to ensure top quality and prolonged cropping. Culinary note: Suitable for freezing. Caution: Cook runner beans before eating to avoid discomfort.

Seeds and garden supplies will normally be delivered within the time period stated against each product as detailed above. Plants, bulbs, corms, tubers, shrubs, trees, potatoes, etc. are delivered at the appropriate time for planting or potting on. Delivery times will be stated on the product page above, or in your order acknowledgement page and email.

Orders for packets of seed incur a delivery charge of £2.99.

Orders which include any other products will incur a delivery charge of £5.99.

Where an order includes both packets of seeds and other products, a maximum delivery charge of £6.99 will apply - regardless of the number of items ordered.

Large items may incur a higher delivery charge - this will be displayed in your shopping basket.

Please see our Delivery page for further details, and more information on different charges that may apply to certain destinations.

For more information on how we send your plants please visit our Helpful Guide on plant sizes.

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