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

You should be able to estimate when it's possible to plant dianthus by reviewing the USDA zone info for Harker Heights.

Planting Calendar for Dianthus

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

Dianthus can survive in a little bit of cold which means that you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant dianthus in Harker Heights 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 grow to maturity. You can get started a few weeks earlier by starting your dianthus indoors.

Last Frost Date

On average all chance of frost has passed is on March 15 in Harker Heights. It might get as low as 15°F during the coldest months of winter.

It's important to remember that USDA zone info for Harker Heights is not always accurate and the actual date of last frost changes from year to year. Half of the time in Harker Heights last frost occurs after March 15 so just be sure to be ready to cover your dianthus if you have one of those late frosts.

USDA Zone Info for Harker Heights

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Harker Heights

You may be interested in your other planting guides for Harker Heights.