Before planting it is a good idea to find your USDA Zone info to determine 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.

A way of figuring out when it's possible to plant cardinal flower is to consult the USDA zone info for Colonial Heights.

Planting Calendar for Cardinal Flower

Frost tolerance for cardinal flower:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Since cardinal flower require warm weather it's important to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant cardinal flower in Colonial Heights 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 cardinal flower and expect a good harvest is probably August. Any later than that and your cardinal flower may not have a chance to fully mature. Starting your cardinal flower indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Colonial Heights. You should expect an average low temperature of 5°F in the coldest months of winter.

Always keep in mind that USDA zone info for Colonial Heights may not be accurate from year to year and the actual date of last frost will vary from year to year. Since half of the time in Colonial Heights it frosts late in the year after April 15 be ready to cover your cardinal flower if you have a surprise late frost.

USDA Zone Info for Colonial Heights

Here is the info for USDA Zone 7b.

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

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Colonial Heights

You may be interested in your other planting guides for Colonial Heights.