The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You should be able to determine when to plant aubretia by checking out the USDA zone info for Mount Vernon.

Planting Calendar for Aubretia

Frost tolerance for aubretia:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Aubretia can survive in a bit of cold which means that you can plant them much earlier in the year than other frost tender plants.

The earliest that you can plant aubretia in Mount Vernon 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 aubretia and expect a good harvest is probably September. If you wait any later than that and your aubretia may not have a chance to fully mature. Starting your aubretia indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Mount Vernon. You can expect an average low temperature of 0°F in the coldest months of winter.

Since the USDA zone info for Mount Vernon is an average the actual date of last frost will vary from year to year. Half of the time in Mount Vernon it frosts late in the year after April 15 so always be ready to cover your aubretia in the event of a surprise late frost.

USDA Zone Info for Mount Vernon

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 Mount Vernon

You may be interested in your other planting guides for Mount Vernon.