Library Perennials

Sweet corn

Perennials · warm season

Sweet corn

Zea mays

Ohio farm-stand crop that works in a backyard if you plant a block, not a single row.

When to plant in Ohio
Direct sow mid-May through early July in blocks
Harvest window
July through September, 18–24 days after silks appear
Days to maturity
70–90
Spacing
8–12 in.; at least 4 short rows for pollination
Light
Full sun

How to grow it

Sow 1 in. deep in warm soil. Plant in a block of at least 4×4 for full ears. Super-sweet types need isolation from other corn or they lose sugar. Water hard at tasseling. Harvest when silks are brown and a pierced kernel is milky. Eat the same day.

Related perennials

← All Ohio crops