← Back to Growing Guides

Growing Sweet Corn

A row of sweet corn stalks in the garden, ears with silks visible among the tall green leaves

Needs a real block, not a row, but nothing beats corn picked and cooked the same afternoon.

SunFull sun
SoilRich, well-drained, pH 6.0–6.8
Spacing12 in. apart, in blocks
Harvest65–85 days

How to Grow Sweet Corn

Planting

Direct sow in blocks of at least four short rows rather than one long row, corn is wind-pollinated and needs neighbors close by to fill out the ears.

Watering & feeding

Heavy feeder, water deeply and feed again once stalks are knee-high and again when tassels appear.

Harvest

Check when silks turn brown and dry, peel back a bit of husk and press a kernel, it should squirt milky liquid, not clear.

Grows Well With

Plant corn with pole beans and squash, the classic Three Sisters, beans climb the stalks and squash shades out weeds at the base. See all our companion planting pairs →

When to Plant

Direct sow after mid-April once the soil has warmed. Succession sow every two weeks through June for a longer harvest window. See the full planting calendar →

Buy the Seeds We Use

Organic Vegetable Seeds - Sweet Corn

From the Seed Center

Shop Sweet Corn Seeds

$1.25

From the Kitchen: Recipes Using Sweet Corn