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.

One way of making a decision about when it's a good idea to plant alternaria is to check out the USDA zone info for Warrenton.

Planting Calendar for Alternaria

Frost tolerance for alternaria:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Since alternaria are not cold tolerant it is necessary to wait until after all chance of frost has passed before you can plant them.

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

Last Frost Date

The average date of last frost is April 15 in Warrenton. In the coldest months of winter you can expect an average low temperature of -10°F.

Remember that USDA zone info for Warrenton 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 Warrenton last frost occurs after April 15 be ready to protect your alternaria if you have one of those late frosts.

USDA Zone Info for Warrenton

Here is the info for USDA Zone 6a.

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

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

Plants to Grow in Warrenton

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