The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of determining when it's a good idea to plant strawflowers is to examine the USDA zone info for Blacksburg.

Planting Calendar for Strawflowers

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

You can plant strawflowers a bit earlier in the year because they are one of those plants that can tolerate a tiny bit of cold weather.

The earliest that you can plant strawflowers in Blacksburg 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 strawflowers and expect a good harvest is probably August. Any later than that and your strawflowers may not have a chance to really do well. Starting your strawflowers indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Blacksburg. In the coldest months of winter you can expect an average low temperature of -5°F.

Since the USDA zone info for Blacksburg may not be accurate from year to year the actual date of last frost will vary from year to year. Half of the time in Blacksburg it frosts late in the year after April 15 so be sure to be ready to cover your strawflowers if you have a surprise late frost.

USDA Zone Info for Blacksburg

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Blacksburg

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