Asparagus bean

VarietyVigna unguiculata subsp. sesquipedalis

Also called Yard-long bean, yardlong bean, long-podded cowpea, Chinese long bean, snake bean, long string bean, Vigna unguiculata sesquipedalis

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Asparagus bean
Photo: Francisco Manuel Blanco (O.S.A.) · Public domain · Wikimedia Commons

Fact sheet

every fact quoted from its source
Typeboots

from Bean · “L.L.Bean Boots” — L.L.Bean - Outside Together Since 1912Pause VideoPause Video

Days to germination6–10 days

from Bean · “Seeds generally germinate in soil temperatures between 60 and 80°F, with germination time ranging from 6 to 10 days, depending on the temperature” — Holmes Seed Company – Bean Growing Guide

Days to maturity60 days

“Days to Maturity 60” — Asparagus Bean Growing Guide — SproutSmart

Germination temperature70 °F

“Germination Temp (°F) 70” — Asparagus Bean Growing Guide — SproutSmart

LightFull Sun

“Light: Full Sun·Maturity: 60 Days·Habit: Clumping” — Asparagus Bean Growing Guide — SproutSmart

Waterconsistent moisture, especially during flowering and pod formation

from Bean · “Snap beans need consistent moisture, especially during flowering and pod formation” — Holmes Seed Company – Bean Growing Guide

Soil pH5.8–6.6

from Bean · “The optimal soil pH for growth is between 5.8 and 6.6” — Holmes Seed Company – Bean Growing Guide

Hardiness zonesZone 7b

“Zone 7b” — Asparagus Bean Growing Guide — SproutSmart

Spacing6–8 in

from Bean · “Bush types are seeded 2 - 4 inches in the row” — Holmes Seed Company – Bean Growing Guide

Height42–54 in

from Bean · “Bush beans grow into compact plants about 1 to 2 feet tall” — Holmes Seed Company – Bean Growing Guide

Propagationseed

from Bean · “Looking to get started by growing your own bean seed?” — Holmes Seed Company – Bean Growing Guide

Ready whenpencil-thin and still flexible

“pick young when pencil-thin and still flexible” — Yardlong Bean (Asparagus bean) care guide | Growli

Edible partspods

“tender, ribbon-long pods unfurl with a silken snap and a delicately sweet, green-bean flavor” — Asparagus Bean Growing Guide — SproutSmart

Toxicitynot toxic

“Mildly toxic to pets” — Yardlong Bean (Asparagus bean) care guide | Growli

Indoorswarm, humid summer conditions

“high humidity suits it provided airflow is good” — Yardlong Bean (Asparagus bean) care guide | Growli

Pestsaphids, leaf-feeding caterpillars

“Asparagus bean is often hit by aphids and leaf-feeding caterpillars, which can stunt growth and reduce pod quality.” — Asparagus Bean Growing Guide — SproutSmart

Diseasesfungal leaf issues

“Avoid overhead watering to reduce fungal leaf issues, and remove heavily affected leaves early to slow spread.” — Asparagus Bean Growing Guide — SproutSmart

Who grows this

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