The USDA Zone info is a great tool for gardeners to help us determine 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.

In Poolesville you can determine when you can plant violas by referring to the USDA zone info.

Planting Calendar for Violas

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

Since violas are one of those plants that can tolerate quite a bit of cold weather you can plant them much earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant violas in Poolesville 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 violas and expect a good harvest is probably September. If you wait any later than that and your violas may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your violas indoors.

Last Frost Date

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

Since the USDA zone info for Poolesville is an average the actual date of last frost is different every year. Half of the time in Poolesville you get surprised by a frost after April 15 so make sure that you are ready to cover your violas if you have one of those late frosts.

USDA Zone Info for Poolesville

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 Poolesville

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