One of the first steps you take when you are making a decision about 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.

You will be able to figure out when it's a good idea to plant crossandra by reviewing the USDA zone info for Waterbury.

Planting Calendar for Crossandra

Frost tolerance for crossandra:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

You really shouldn't plant crossandra until after the last frost has passed because they do not do well in cold weather.

The earliest that you can plant crossandra in Waterbury 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 crossandra and expect a good harvest is probably August. If you wait any later than that and your crossandra may not have a chance to fully mature. If you are starting your crossandra indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Waterbury. In the coldest months of winter you can expect an average low temperature of -10°F.

Since the USDA zone info for Waterbury is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Waterbury you get surprised by a frost after April 15 so make sure that you are prepared to protect your crossandra if you have a surprise late frost.

USDA Zone Info for Waterbury

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 Waterbury

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