Yardlong bean
Vigna unguiculata subsp. sesquipedalis
In a typical UK garden, sow indoors early April to early May, sow outside mid-May to late July, plant out early May to early June, and harvest late June to late October.
When to sow, plant and harvest
Last frost around 20 April, first frost around 31 October.
- Sow indoors
- early April to early May
- Sow outdoors
- mid-May to late July
- Plant out
- early May to early June
- Harvest
- late June to late October
Growing facts
- Spacing
- 20 cm apart, rows 90 cm apart
- Square foot
- 4 per square (30 cm squares)
- Sowing depth
- 2.5 cm
- Ready in
- 60 to 90 days from sowing
- Grows to
- 2.5 m
- Hardiness
- Tender: killed by any frost
- Sun
- Full sun
- Crops for
- About 8 weeks
Growing tip
Pick pods every day at 30 to 45 cm long, before the beans swell; in cool areas grow them under cover.
More legumes
Where these figures come from
Every crop in VegLog was checked against published growing advice. Dates are worked out from average frost dates, so they shift with your garden. For yardlong bean, we used: