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 Herndon should be used to estimate when it's the best time to plant maltese cross.

Planting Calendar for Maltese Cross

Frost tolerance for maltese cross:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Maltese Cross are one of those plants that can tolerate a little bit of cold weather which tells us that you can start planting them earlier than other frost tender plants.

The earliest that you can plant maltese cross in Herndon is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant maltese cross and expect a good harvest is probably September. Any later than that and your maltese cross may not have a chance to fully mature. You can get started a little bit earlier by starting your maltese cross indoors.

Last Frost Date

In Herndon the average date of last frost happens on April 15. You should expect an average low temperature of 0°F in the coldest months of winter.

Since the USDA zone info for Herndon is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Herndon there is a last frost after April 15 so be sure to be ready to cover your maltese cross if you have a late frost.

USDA Zone Info for Herndon

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 Herndon

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