Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of making a decision about when you can plant sweet corn is to consult the USDA zone info for Steilacoom.

Planting Calendar for Sweet corn

Frost tolerance for sweet corn:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Since sweet corn are barely cold tolerant you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant sweet corn in Steilacoom is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant sweet corn and expect a good harvest is probably August. Any later than that and your sweet corn may not have a chance to fully mature. If you are starting your sweet corn indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Steilacoom the average date of last frost happens on March 15. It might get as low as 15°F during the coldest months of winter.

Since the USDA zone info for Steilacoom is an average the actual date of last frost will vary from year to year. Half of the time in Steilacoom last frost occurs after March 15 so make sure that you are ready to cover your sweet corn in the event of one of those late frosts.

USDA Zone Info for Steilacoom

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Steilacoom

You may be interested in your other planting guides for Steilacoom.