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Phaseolus vulgaris, Dwarf French Bean - The Prince, untreated

£0.79

Popular standard, strong plants, producing long slender pods. Pick young beans regularly for a continuous supply through summer. Plant indoors in April/May or in situ May/June.

The French bean is commonly cultivated in the temperate and subtropical zones for its edible mature seeds and immature seedpods. It is often grown to provide a major part of the protein requirement.

Plants are not frost-tolerant, air temperatures below 10°c can cause damage to seedlings. When grown for their edible pods, the immature pods should be harvested regularly in order to promote extra flower production and therefore higher yields.

French beans grow well with strawberries, carrots, cauliflowers, cucumbers, cabbage, beet, leek and celeriac. They are inhibited by alliums and fennel growing nearby.

This species has a symbiotic relationship with certain soil bacteria, these bacteria form nodules on the roots and fix atmospheric nitrogen. Some of this nitrogen is utilized by the growing plant but some can also be used by other plants growing nearby. When removing plant remains at the end of the growing season, it is best to only remove the aerial parts of the plant, leaving the roots in the ground to decay and release their nitrogen.

Requires a warm sunny position in a rich well-drained preferably light soil with plenty of moisture in the growing season. Dislikes heavy, wet or acid soils. Prefers a pH in the range 5.5 to 6.5.

Pre-soak the seed for 12 hours in warm water and sow in mid spring in a greenhouse. Germination should take place within 10 days. When they are large enough to handle, prick the seedlings out into individual pots and plant them out after the last expected frosts. The seed can also be sown in situ in late spring though it may not ripen its seed in a cool summer.

Edible uses:

Large quantities of the raw mature seed are poisonous. Children eating just a few seeds have shown mild forms of poisoning with nausea and diarrhoea, though complete recovery took place in 12 - 24 hours. The toxins play a role in protecting the plant from insect predation.

Immature seedpods - raw or cooked. The green pods are commonly used as a vegetable, they have a mild flavour and should only be cooked for a short time. When growing the plant for its seedpods, be sure to pick them whilst they are still small and tender. This will ensure the continued production of more pods by the plant. Flowering is reduced once the seeds begin to form inside the pods.

The immature seeds are boiled or steamed and used as a vegetable. The mature seeds are dried and stored for future use. They must be thoroughly cooked before being eaten and are best soaked in water for about 12 hours prior to this. They can be boiled, baked, pureed, ground into a powder or fermented into 'tempeh' etc. The powdered seed makes a protein-enriching additive to flour, it can also be used in soups etc. The seed can also be sprouted and used in salads or cooked. The roasted seeds have been used as a coffee substitute.

Young leaves - raw or cooked as a potherb. The very young laves are sometimes eaten as a salad, the older leaves are cooked.

http://practicalplants.org/wiki/Phaseolus_vulgaris

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