One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of making a decision about when it's the best time to plant kohlrabi is to look at the USDA zone info for Chehalis.

Planting Calendar for Kohlrabi

Frost tolerance for kohlrabi:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Kohlrabi do well in mild cold which means that you can plant them a little bit earlier in the year than more sensitive plants.

The earliest that you can plant kohlrabi in Chehalis is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant kohlrabi and expect a good harvest is probably September. Any later than that and your kohlrabi may not have a chance to grow to maturity. You can get started a little bit earlier by starting your kohlrabi indoors.

Last Frost Date

On average all chance of frost has passed is on March 15 in Chehalis. It might get as low as 10°F during the coldest months of winter.

Since the USDA zone info for Chehalis is not always accurate the actual date of last frost is different every year. Since half of the time in Chehalis you get surprised by a frost after March 15 be ready to protect your kohlrabi in the event of a late frost.

USDA Zone Info for Chehalis

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Chehalis

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