Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of estimating when it's a good idea to plant dianthus is to consult the USDA zone info for Blacksburg.

Planting Calendar for Dianthus

Frost tolerance for dianthus:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

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

The earliest that you can plant dianthus in Blacksburg 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 dianthus and expect a good harvest is probably September. You probably don't want to wait any later than that or else your dianthus may not have a chance to really do well. You can get started a few weeks earlier by starting your dianthus indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Blacksburg. It might get as low as -5°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Blacksburg is just an average and the actual date of last frost will vary from year to year. Since half of the time in Blacksburg it frosts late in the year after April 15 be ready to cover your dianthus in the event of a 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.