Growing Asparagus Pea, also Winged bean

Lotus tetragonobolus : Fabaceae / the pea or legume family

Jan F M A M J J A S O N Dec

(Best months for growing Asparagus Pea in USA - Zone 5a regions)

  • P = Sow seed
  • Easy to grow. Sow in garden. Sow seed at a depth approximately three times the diameter of the seed. Best planted at soil temperatures between 15°C and 20°C. (Show °F/in)
  • Space plants: 20 - 25 cm apart
  • Harvest in 8-11 weeks. Pick early, pick often.
  • Compatible with (can grow beside): Best grown in separate bed

Your comments and tips

10 Nov 20, Astrid (South Africa - Summer rainfall climate)
If anyone is looking for seeds, I found some online at - excellent service, speedy delivery.
26 May 19, Theresa (Australia - sub-tropical climate)
I live in Newcastle and grow winged bean in my garden. It is the second year I tried to grow this plant. First year the plant died in winter but the root is still alive so I continued to grow them last spring. They have some flowers( white/purple) right now and have some fruits already. However, the fruits are very tiny, after two weeks still not much growth. Does it mean the weather in Newcastle is too cold for my winded beans? I got another type of seeds which claims it will flowers in colder climate but need to wait until spring time. Thanks for your time.
15 Jan 19, Daniel Pawlenko (Australia - sub-tropical climate)
I grow winged beans in brisbane and its all set up with drip lines .It's very hot here and dry at the moment and I'm exspiriencing hard dark green beans at the moment. Does anyone know if this is from hot temps or not enough water. Kind Regards Daniel
16 Jan 19, Mike (Australia - sub-tropical climate)
You will more likely have far better success planting in the early autumn to early spring. Trying to grow things in summer in S E Qld is a hard game in summer(HOT, WINDY, storms) - have a rest and work on building your soil up for March/April planting.
28 Oct 18, Phil M (Australia - temperate climate)
I live in the Adelaide region and my winged bean plant has just completed a massive burst of flowers and crop. This seemed completely out of season as it was planted at least a year ago, barely survived summer without flowering throughout, survived winter without a problem (which seems to contradict its need for higher soil temperatures), then in mid-August took off with growth and flowers. I've just cut it right back so is it possible it will start new growth and survive another season?
01 Nov 18, Liz (New Zealand - temperate climate)
Have a look at this article
01 Nov 18, Mike (Australia - sub-tropical climate)
I can't find if they are annual or perennial. Sounds like annual. Let them grow and see what happens.
10 Nov 18, Phil M (Australia - temperate climate)
After two weeks with regular watering, it has succumbed to nature, dried up and died, so it's definitely an annual. Contrary to what it states on the seed packet, I will not be starting off new seedlings until towards the end of summer and hoping for a repeat burst of flowers in late winter and early spring. Thank you also Liz for that article... what struck me in the comments section there was this from a Canberra grower.... 'I live in Canberra, Australia, and can report that I sowed some asparagus peas last spring. They didn’t produce much that season but, amazingly to me who had thought they wouldn’t last our winter here, they are flowering profusely and bearing fruit now, the second month of spring. And temperatures this winter got down to -7C!' This is very much how my own plants responded.
12 Oct 18, Robbie (New Zealand - temperate climate)
Hi, could I grow Psophocarpus tetragonolobus in Ashburton outdoors? if not should I grow them in the greenhouse? Thanks
15 Oct 18, Mike (Australia - sub-tropical climate)
It is normally grown in hot humid areas so if you like try the green house.
Showing 31 - 40 of 118 comments

Am in SF. Bought my seeds at They are in Oakland CA.

- Bim

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