Independent comparisons. We may earn from shop links. More info

Best runner bean seeds UK, by the job on your plot

Updated: 21 October 2026

You already want runners, and best runner bean seeds UK is useless until you say best for what. A hot summer, a long pod and a traditional red flower are different jobs. This page names a variety from the current set for each job, and who should leave it. Prices stay on the [runner bean seeds buying guide](/hub/herb-seeds/runner-bean-seeds/sub/runner-bean-seeds-buying-guide). Scores sit on the [runner bean seeds comparison](/hub/herb-seeds/runner-bean-seeds). Peter F. used the RHS grow guide, the Award of Garden Merit list, Tozer's 2023 brochure and the listings read on 20 October 2026. We did not weigh a crop. A qualifying purchase can earn a commission at no extra cost to you.

You already want runners, and best runner bean seeds UK is useless until you say best for what. A hot summer, a long pod and a traditional red flower are different jobs.

Our top picks

Just Seed JustSeed Enorma

Best overall

Just Seed JustSeed Enorma
8.0/10about £1.65
On this page

Best for a hot summer

The RHS points to runners with French bean in the breeding, including Moonlight and Firestorm, when a British summer turns hot. They are still Phaseolus coccineus. They still need water, and canes about 2.5 m before you sow. JustSeed Moonlight is the top pick when you have that frame. The RHS list includes it from 2013. This listing does not print the award or the word stringless. Tozer marks it semi-stringless. It is 30 seeds at about £2.50, with 4.7 from 34 reviews. Mr Fothergill's Firestorm is the only listing here that prints the RHS award. Tozer says semi-stringless and the bullet says stringless. It is 40 seeds at about £3.99, with 4.3 from 14 reviews. One review reports flowers and no beans on 20 plants.

Best when you want an awarded climber for less

If you want an Award of Garden Merit name below Firestorm's about £3.99, Moonlight and Benchmaster carry the award on the RHS list. Neither Amazon page prints it. Choose Moonlight when the printed award matters less than the price and you will still water. Skip it if you need the word stringless on the listing. Equator, Jackpot and Firestorm print that word. JustSeed Benchmaster is on the RHS list from 2006. It is 40 seeds at about £2.65, with 4.8 from 13 reviews. Tozer marks it not stringless, and the pods can run past 40 cm. Pick at about 20 to 25 cm.
Just Seed JustSeed Enorma

Testsieger

Just Seed JustSeed Enorma
8.0/10about £1.65

Best when you want flowers or a traditional name

Mr Fothergill's St George is the bi-colour flower: pods about 25 cm, red and white, on the RHS list from 2006, semi-stringless at Tozer. The page does not print the award. About 50 seeds at about £3.19, with stringless only in the single 5.0 review. Choose it for the flower, not for that star. JustSeed Scarlet Emperor is the old red flower, and it is not on the award list. It is 50 seeds at about £3.40, with 4.4 from 58 reviews, including failed germination and one wrong-variety complaint. Sow spare seed.

Who should skip the climbers

Skip every climber if you have a patio and no 2.5 m row. Unwins Jackpot is the dwarf, about 50 cm. Widths are on the runner beans in pots page. Hestia is an RHS container example and it is not in this set. Skip runners if you are unsure you want Phaseolus coccineus. French beans are easier to keep going in a warm, dry summer, which is the runner beans vs French beans page. Moonlight and Firestorm stay runners.

Common questions

Is Firestorm or Moonlight the better buy in a hot UK summer?
Both are runners with French bean parentage, and both are on the RHS award list from 2013. Firestorm is the listing that prints the award and says stringless, at 40 seeds and about £3.99. Moonlight does not print either claim, at 30 seeds and about £2.50, and it is the top pick here if you have canes and will water. One Firestorm review reported no pods on 20 plants, so neither name survives a dry root zone.
Which names in this set are on the RHS AGM list?
The RHS list includes Benchmaster, Firestorm, Moonlight, St George and 'Enorma' - Elite. Only Firestorm prints the award on amazon.co.uk. A packet that says Enorma is not automatically the Elite stock. Scarlet Emperor, Polestar, Streamline, Equator, Mergoles and Jackpot are not on the list.
Is Scarlet Emperor still worth sowing?
Yes, if you want the traditional red flower and you will sow extra seed. It is 50 seeds at about £3.40 and it has 4.4 from 58 reviews, which include both heavy crops and failed germination, plus one wrong-variety complaint. It is not an award variety here, and the listing does not call it stringless.
When is Benchmaster the wrong packet?
When you are buying to avoid string, or when you will let the pods run on towards 40 cm. Tozer marks it not stringless, and long pods are the point of the variety only if you pick them young, at about 20 to 25 cm. The award is real on the RHS list from 2006 and absent from this listing.
Is Polestar an AGM variety?
No. It is not on the RHS Award of Garden Merit list. Tozer and a Gardeners' World shortlist describe it as stringless, and this listing does not print that word. At about £3.99 for 40 seeds and 4.4 from four reviews, including a torn packet, it is a reputation buy rather than an awarded one.
What should a small garden buy instead of a tall climber?
Unwins Jackpot, the only dwarf in this set, listed at about 50 cm for containers. A climber such as Moonlight still needs a heavy wide pot and a wigwam, which is a different project from a 30 to 45 cm dwarf pot. If you are unsure you want runners at all, compare the species before you buy a dwarf French bean by mistake.

Related pages

Sources

Public UK sources named below. amazon.co.uk prices, stars and review counts on these eleven listings were read on 20 October 2026. Page updated 21 October 2026.

  1. RHS, How to grow runner beans (retrieved 20 October 2026)
  2. RHS Award of Garden Merit fruit and vegetables (retrieved 20 October 2026)
  3. RHS, Phaseolus coccineus Firestorm (retrieved 20 October 2026)
  4. RHS, Runner beans: failure to set pods (retrieved 20 October 2026)
  5. RHS, What to grow on your allotment (retrieved 20 October 2026)
  6. Seed Marketing Regulations 2011 (retrieved 20 October 2026)
  7. Tozer legumes brochure 2023 UK (retrieved 20 October 2026)
  8. FSA, Home food fact checker (retrieved 20 October 2026)