Garden Scheme

Plant library  ·  Vegetables

Edamame

Glycine max

Edamame, Glycine max, is a bush soybean grown for green pods in late summer and early fall. Its upright, roughly 2½-foot height gives a vegetable bed a modest vertical layer without the trellis footprint of a climbing bean. Use it as a warm-season annual crop that occupies its space through summer. Mid-summer flowers give way to pods, with harvest beginning at about 80 days.

Sunlight Full Sun
Water Regular
USDA zones 2–11
Spacing 0.5 ft
Mature size 2.5 ft tall, 1.5 ft wide
Bloom Mid summer

Placement and use

Place edamame in an open, full-sun part of the vegetable garden where its 2½-foot canopy will not shade shorter crops. A middle or back position in a bed works well, while a path-side edge should be reserved only if there is enough room to reach through the foliage for picking. It can be grouped near sweet corn, summer squash, cucumber, carrots, lettuce, or radishes. Keep a separate bed section for onions, garlic, shallots, leeks, and fennel rather than interplanting them in the same block.

Spacing and mature footprint

Set plants 6 inches apart, center to center, for a close-planted row or block. Although each plant can spread about 1½ feet at maturity, that spacing is useful for creating a continuous planting rather than isolated specimens. Allow a reach-in lane or bed edge alongside the planting, especially when growing more than one row. The plants are upright and sturdy, so a support structure does not need to occupy adjacent garden space.[1]

Three plants set 0.5 ft apart, center to center; shaded circles show the 1.5 ft mature spread.

Sun, water, and soil

Give edamame full sun and regular water through its seasonal growth. Plant after frost once the soil has warmed; bean seed germinates best when soil is at least 60°F, while cooler ground can lead to poor seed performance. Choose a bed that can be watered evenly without repeatedly wetting the foliage from overhead. Keep the planting accessible for routine watering and for clearing weeds while plants are young.[2]

Seasonal notes

Edamame fills its allotted bed from warm-season planting through late-summer and early-fall harvest. Plan around its 80-day run so the space is not needed for an earlier cool-season crop or a later planting before pods are picked. Harvest while pods are green and plump. Remove spent plants after the crop is finished, opening the bed for the next rotation.[2]

Planning caveats

Treat edamame as part of the legume section of a vegetable-garden rotation. Reserve a different bed area for its next planting season, rather than returning it to the same spot year after year. A layout with several small crop zones makes that rotation easier to maintain. Keep a simple bed map so the legume block can move among other crop groups over successive seasons.[3]

Growing facts

Botanical name
Glycine max
Type
Vegetable
Category
Vegetables
Lifecycle
annual
USDA hardiness zones
2–11
Sunlight
Full Sun
Water
Regular
Plant spacing
0.5 ft
Mature size
2.5 ft tall, 1.5 ft wide
Days to maturity
80
Bloom season
Mid summer
Harvest season
Late summer - early fall
Pollinator friendly
No
Deer resistant
No
Native to North America
No

References

  1. Growing beans in home gardens — University of Minnesota Extension
  2. Grow crisp, flavorful beans in your home garden — Oregon State University Extension Service
  3. Sow, grow, rotate: how crop rotation promotes gardening success — Illinois Extension

Editorial content updated 2026-07-20.