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

By checking out the USDA zone info for Darien it's a good idea to determine when it's the best time to plant crossandra.

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 should not plant crossandra until after all chance of frost has passed because they do not do well in cold weather.

The earliest that you can plant crossandra in Darien 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 really do well. You can get started a little bit earlier by starting your crossandra indoors.

Last Frost Date

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

Since the USDA zone info for Darien is just an average the actual date of last frost is different every year. Half of the time in Darien you get a frost after April 15 so make sure that you are ready to cover your crossandra in the event of a late frost.

USDA Zone Info for Darien

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 Darien

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