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Cassava

Manihot esculenta

Cassava is a tall tropical root crop that occupies its bed for most of the growing year. Reaching about 8 feet tall and 4 feet wide, it reads more like a small shrub than a short-season vegetable. Use it where its upright presence can form a back layer without closing in lower crops or narrowing a working route.

Sunlight Full Sun
Water Low
USDA zones 9–12
Spacing 3 ft
Mature size 8 ft tall, 4 ft wide
Harvest Fall to early winter

Placement and use

Give cassava a dedicated position at the rear or outer edge of a sunny vegetable bed, rather than placing it in the middle of a tightly planted patch. Its height can shade nearby planting areas, so keep shorter, sun-dependent crops to its south side where possible. Leave a clear approach from a path or open bed edge for digging at harvest, and avoid sites where its full-season occupancy would block access to other crops.

Spacing and mature footprint

Set plants 3 feet apart, center to center. Although each plant can spread about 4 feet across, this planting distance suits a productive row while allowing the foliage to knit together as the plants fill out. For a single specimen, reserve a roughly 4-foot-wide zone and keep its outer canopy away from paths, gates, and the front edge of a bed.

Three plants set 3 ft apart, center to center; shaded circles show the 4 ft mature spread.

Sun, water, and soil

Place cassava in full sun, with no taller crop or structure expected to shade it as the season progresses. Its low water needs make it a better fit for a bed that is not kept constantly wet. Keep irrigation zones and neighboring crops in mind when laying out the row.

Seasonal notes

Treat the space as committed from planting through fall and early winter, when the roots are harvested. Cassava commonly needs about 8 to 12 months to reach harvest maturity, so it is best placed where it will not disrupt a quick succession of spring, summer, and fall crops. Plan the digging area before surrounding plants become dense.[1]

Planning caveats

Cassava is perennial in USDA Zones 9 through 12, but its long 270-day path to harvest still calls for deliberate bed planning. In smaller gardens, one or two plants may be easier to manage than a continuous row. Keep the crop separate from spaces needed for frequent planting, picking, or path circulation.

Growing facts

Botanical name
Manihot esculenta
Type
Vegetable
Category
Vegetables
Lifecycle
perennial
USDA hardiness zones
9–12
Sunlight
Full Sun
Water
Low
Plant spacing
3 ft
Mature size
8 ft tall, 4 ft wide
Days to maturity
270
Harvest season
Fall to early winter
Pollinator friendly
No
Deer resistant
No
Native to North America
No

References

  1. 2025–2026 Vegetable Production Handbook of Florida: Chapter 15. Root Crop Production — UF/IFAS Extension

Editorial content updated 2026-07-20.