When to Plant Kohlrabi in Cornelius, OR

The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can figure out when it's a good idea to plant kohlrabi in Cornelius by checking out the USDA zone info.


Planting Calendar for Kohlrabi

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

You can plant kohlrabi a little bit earlier in the year because they are moderately cold tolerant.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant kohlrabi
Possibly ok, but a risky time to plant kohlrabi
Probably not a good time to plant kohlrabi

The earliest that you can plant kohlrabi in Cornelius 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. You probably don't want to wait any later than that or else your kohlrabi may not have a chance to fully mature. If you are starting your kohlrabi indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average all chance of frost has passed is on March 15 in Cornelius. In the coldest months of winter you can expect an average low temperature of 15°F.

It's important to remember that USDA zone info for Cornelius is an average and the actual date of last frost will vary from year to year. Half of the time in Cornelius you get surprised by a frost after March 15 so be sure to be ready to cover your kohlrabi in the event of a surprise late frost.

USDA Zone Info for Cornelius

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 Low15°F
Highest Expected Low20°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 Cornelius

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