One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of figuring out when to plant crassula is to look at the USDA zone info for Cortland.

Planting Calendar for Crassula

Frost tolerance for crassula:	Not tolerant of frost.
When to plant:	After the last frost.

You can not plant crassula until after the last frost has passed because they do not do well in cold weather.

The earliest that you can plant crassula in Cortland is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant crassula and expect a good harvest is probably August. You probably don't want to wait any later than that or else your crassula may not have a chance to grow to maturity. Starting your crassula 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 Cortland. You should expect an average low temperature of -10°F in the coldest months of winter.

It's important to remember that USDA zone info for Cortland is just an average and the actual date of last frost is different every year. Half of the time in Cortland last frost occurs after April 15 so make sure that you are prepared to protect your crassula in the event of a surprise late frost.

USDA Zone Info for Cortland

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°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 -5°F.

Plants to Grow in Cortland

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