Thompson & Morgan

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Climbing Bean 'Cobra' - RHS endorsed vegetable seeds

Phaseolus vulgaris, French Bean, Green Bean

Half-hardy Annual

 Customer Rating
  • RHS Award of Garden Merit

An RHS AGM variety with an exceptional flavour, that will crop continuously over a long season. Climbing French Bean 'Cobra' produces heavy crops of smooth, round, stringless green pods of about 18cm (7") long. This attractive mauve flowered bean makes a delightful addition to the flower border as well as the vegetable plot. Height: 180cm (70"). Spread: 30cm (12").

These vegetable seeds are endorsed by the RHS.

Companion planting: Try growing French beans with Nasturtiums to draw aphids away from your crop.

Useful links:

Companion Planting

Ideal For:
kitchen garden
Flowering Period:
June, July, August, September
Sowing Months:
April, May, June, July
full sun
    • 1 packet (40 climbing bean seeds)

    • Despatch: Within 1 days
    • £2.99

Sow climbing bean seeds indoors from mid April for transplanting later on, or direct sow outdoors from late May to July.

Indoors, sow bean seeds at a depth of 2cm (1") in 7.5cm (3") pots or trays of free-draining, seed sowing compost. Place in a propagator or seal container inside a plastic bag at a temperature of 12-25C (54-77F) until germination, which takes 7-10 days. Do not exclude light as this helps germination. Once germinated, grow on in cooler conditions until all risk of frost has passed and the climbing bean plants are large enough to be transplanted. Gradually acclimatise them to outdoor conditions over 7 - 10 days before planting French beans outdoors in rich fertile, well drained soil in full sun with protection from strong winds.

Alternatively direct sow French beans outdoors when the soil as warmed. Sow 2 bean seeds per station at a depth of 5cm (2") and a distance of 23cm (9") apart. Plant Climbing beans in rows that are 60cm (24") apart, or where space is limited, try growing climbing beans onto a wigwam structure. Climbing beans require support from garden canes, strings or netting which should be put in place at the time of planting.

When growing beans, hoe between plants often and water regularly. Provide a compost mulch around the base of bean plants to combat dry periods. For the best crops harvest beans regularly while the pods are still young.

Culinary note: Suitable for freezing. Caution: Cook climbing 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 and will be stated on the product page or in your order acknowledgement page and email.

Orders for packets of seed incur a P&P charge of £1.95.
Orders which include any other products will incur a P&P charge of £4.95.
Where an order includes both packets of seeds and other products a maximum P&P charge of £6.90 will apply - regardless of the number of items ordered.

Please see our Delivery / P&P page for further details and details of any surcharges that may apply to certain destinations.

  1. Quality, taste and plenty of them!

    By Kevin Ward 18-04-2012

    After many years trying new french and runner bean varieties I came across this little beauty. It is the best of both worlds, superb flavour and easy to grow. It crops for such a long time too. I have grown it early in the polytunnel, after starting the plants in a heated greenhouse with excellent results. As it is a "french" bean it does not need insects to pollinate but wind. The breeze through the tunnel seems to work fine. Last year we picked polytunnel beans at the end of May. Helped by the mild almost frost free spring I suppose. Still a must grow bean for me, inside and out in the garden, try it!

  2. Very impressed

    By Veronica Emery 05-09-2011

    By Ronnie Emery 5 Sept 2011 These were so easy to grow, all came up and were vigorous climbers. So many beans which were tender and tasty. I've been giving them away and freezing them as well as eating them ourselves. They are still doing well although they have slowed down a bit but have never got tough or bumpy. Will definitely grow these again next year as our only French bean crop - they surpass all others we have tried.

  3. Delicious (and prolific) beans!

    By Elaine Did-dell 13-08-2011

    I grew these for the first time last year. Due to difficult growing conditions I had a relatively poor crop but those that did grow had a wonderful flavour. This year I have an amazing crop, everyone who has eaten them says how lovely they are. Definitely one for next year!

  4. Love these beans

    By Deborah probert 19-07-2011

    It is so good to go out at 5pm and pick the beans, and eat them at 7pm. They taste great and are really easy to grow. I will be buying these again next year.

  5. These are great!

    By Emma Cordery 07-06-2011

    This is the third season I grow these, and I will keep on growing them. They have a sweet taste and no strings, our five-year old eats them too! I make a high wig-wam for these, they will quickly climb up and up. It's only the beginning of June now, and I've started to pick already, from sowing indoors at the end of March. Very gratifying!

  6. Best french beans ever!

    By Kevin Ward 31-01-2011

    Best I've grown and there has been so many tried I've lost count. I have had 2 seasons of top class crops. Great in the polytunnel for early crops, french beans don't need insects to pollinate. The climbers crop so much more than traditional french beans, but you have to give support as if they are runner beans. Worth every penny!

  7. well worth growing

    By Shereen Gay 06-10-2010

    I have not used this variety before. They were a little slow to establish themselves in my raised beds after being sown undercover but then gave us heavy crops of good quality beans from july to october. They were a very pretty plant with their lovely mauve flowers and had a delicious sweet taste. I will definately grow these next year.

  8. Fantastic Beans

    By Alison Gifford 21-09-2010

    This is the first year I've grown these and they were brilliant. I sowed 6 plants in the garden and more on the allotment and I got more than enough from just the ones in the garden. They're lovely looking beans, and they were as long as the length of my trowel. Tasted great too so I'll be growing them again next year.


    We are pleased to hear that you had great results from these beans.

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