One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of determining when it's a good idea to plant petunias is to refer to the USDA zone info for Waynesboro.

Planting Calendar for Petunias

Frost tolerance for petunias:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

You can plant petunias slightly earlier in the year because they do ok in moderate cold.

The earliest that you can plant petunias in Waynesboro is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant petunias and expect a good harvest is probably August. You probably don't want to wait any later than that or else your petunias may not have a chance to fully mature. Starting your petunias indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is March 15 in Waynesboro. It might get as low as 10°F during the coldest months of winter.

Remember that USDA zone info for Waynesboro is not always accurate and the actual date of last frost is different every year. Since half of the time in Waynesboro last frost occurs after March 15 be ready to protect your petunias in the event of one of those late frosts.

USDA Zone Info for Waynesboro

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°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 15°F.

Plants to Grow in Waynesboro

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