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These beans live up to their name, producing an abundance of crisp green pods that can reach from 1-3 feet long. Vines can reach 9-12 feet in height. Also known as Chinese long beans, long-podded cowpeas, or snake beans.
Start Bean seeds indoors for early blooms.
Sow directly outside when soil reaches a consistent temperature of 60° or more. Choose well-drained soil with moderate nutrient content. Provide support such as a trellis for vertical growth. Keep plants watered consistently.
Asparagus Yard Long Bean Seeds Growing Details | |
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Botanical Name | Vigna sesquipedalis |
Plant Spacing | 6-8” |
Planting Depth | 1” |
Spread | 1-2’ |
Height | 9-12’ |
Germination Temp | 70-80 °F |
Light Required | Full Sun |
Life Cycle | Annual |
Days to Germination | 7-14 Days |
Days to Maturity | 80-90 Days |
Planting Zone | 2-9 |
Yield | High |
Growth Rate | Moderate |
Growing Season | Spring - Fall |
Harvest Season | Summer - Fall |
Yes, these vines will need a sturdy structure to grow.
Vines of the asparagus yard long bean are prolific growers and can be very heavy. As beans begin to grow, a trellis or structural support is crucial to hold their weight, protect from heavy rain or wind, and allow for further growth and production.
Pole bean varieties like asparagus yard long beans will grow and set fruit throughout the season. Vining bean plants need more pruning and maintenance throughout the season because the vines will grow indeterminately, unlike the bush varieties that set all their fruit at once.
Like many common beans, asparagus yard long beans are self pollinating, meaning they do not need outside sources for fruit production.
The flowers of asparagus yard long beans have everything needed to pollinate themselves. Bees and other pollinators may visit their flowers to collect nectar and spread pollen, but it is not necessary for the beans' production.
Leave the bean pods on your plant until the beans rattle inside the pod. Separate the pods from the beans inside. Let the beans dry in a cool environment, and store them to plant again next season.