Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. 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 Manassas should be used to estimate when it's a good idea to plant chrysocephalum.

Planting Calendar for Chrysocephalum

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

Chrysocephalum require warm weather which tells us that it is important to wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant chrysocephalum in Manassas 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 chrysocephalum and expect a good harvest is probably August. You probably don't want to wait any later than that or else your chrysocephalum may not have a chance to fully mature. Starting your chrysocephalum 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 Manassas. You can expect an average low temperature of 0°F in the coldest months of winter.

Remember that USDA zone info for Manassas is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in Manassas you get surprised by a frost after April 15 so make sure that you are prepared to cover your chrysocephalum in the event of one of those late frosts.

USDA Zone Info for Manassas

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Manassas

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