> on LFD

A couple of weeks before planting out, you should prepare the planting bed and lay down black plastic to warm it up.  Plant the seedlings on the last frost date and cover with row covers, or cloches, to keep them warm until the weather warms up.

> Warm, Hot

Corn is a sub-tropical plant and uses C4 photosynthesis, which enables it to grow more efficiently in high heat and light levels. It needs warm weather and as much sunlight as it can get.

Sweet Corn can be grown in an intensive bed, but it must be in a large block for best pollination. There must be at least a group of 12 plants to insure good pollination.

It is a tall growing plant, so must be planted where it won't shade other plants.

> When outdoor temp: 50°F to 95°F, optimal temp 60°F to 75°F
> When min soil temp: 60°F

Corn needs a warm soil for good germination. It will take 3 weeks to germinate at 50 degrees, but only 4 days at 80 degrees.

Spacing

4.0"-6.0", 4 plants per sq ft

Row planting: Corn is usually planted in rows but to ensure good pollination (which means full ears), it is important that the rows be in blocks. These should consist of at least four rows each. Put the plants 4 to 6" apart in the rows, with 24 to 36" between the rows.

Intensive Beds: Plant in offsets rows across the bed. The distance apart depends upon the soil: 18" (poor soil) 15" (average soil) 12" (excellent soil).

Transplant Outdoors

on LFD

A couple of weeks before planting out, you should prepare the planting bed and lay down black plastic to warm it up.  Plant the seedlings on the last frost date and cover with row covers, or cloches, to keep them warm until the weather warms up.

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