One of the best tools that you have as gardeners to help us figure out 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.

The USDA zone info for Spring Grove should be used to estimate when it's the best time to plant crassula.

Planting Calendar for Crassula

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

You should not plant crassula until after all chance of frost has passed because they require warm weather.

The earliest that you can plant crassula in Spring Grove 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. Any later than that and your crassula may not have a chance to fully mature. You can get started a few weeks earlier by starting your crassula indoors.

Last Frost Date

The average date of last frost is April 15 in Spring Grove. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Spring Grove is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Spring Grove you get surprised by a frost after April 15 so make sure that you are ready to protect your crassula in the event of a late frost.

USDA Zone Info for Spring Grove

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 Spring Grove

You may be interested in your other planting guides for Spring Grove.