What you need to know about growing sweet corn.
- seed must be planted in a block, minimum of 10 x 10. (so, 4-5 rows across, 10 ft. long)
- corn is wind pollinated, hence the 'block' planting
- each strand of silk is attached to a potential kernel of corn
- each strand must receive pollen from the tassel to develop the kernel (empty spaces on a cob indicate no pollination)
- the silk is the female inflorescence,and the tassel is the males
- some corn may require isolation of 100 ft or more from other corn, check before you buy
- soil should be warmed up for most varieites to about 55 degrees
- corn likes to be weeded and watered twice a week if no rain falls.
- usually about 2 weeks from full silk until picking cobs.
- check for ripeness when silk is all browning, pull back part of the husk to see if kernels are filled out. if not wait a few days
- you should harvest 1 -2 quality size cobs per plant, followed by some smaller ones
- there are several insect pests that get into corn, buy varieties that claim to have a 'tight tip' as they are less likely to have insect issues. The adult insect will not see that cob as a friendly place to lay eggs.
- racoons and deer also love it.
- sweet corn is a heavy nutrient feeder, so fertilize it with a balanced mix 10-10-10 or a 20-20-20.
- follow sweet corn plots the next year with peas or legumes that actually manufacture nitrogen back into the soil.
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