Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Rensselaer you can figure out when it's a good idea to plant kohlrabi by referring to 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 just a bit earlier in the year because they are moderately cold tolerant.

The earliest that you can plant kohlrabi in Rensselaer 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. If you wait any later than that and your kohlrabi may not have a chance to really do well. Starting your kohlrabi indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Rensselaer. You should expect an average low temperature of -15°F in the coldest months of winter.

Keep in mind that USDA zone info for Rensselaer is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Rensselaer you get surprised by a frost after April 15 be ready to cover your kohlrabi in the event of one of those late frosts.

USDA Zone Info for Rensselaer

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°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 -10°F.

Plants to Grow in Rensselaer

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