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.

In Covington you can determine when it's the best time to plant dianthus by referring to the USDA zone info.

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 a bit earlier in the year because they are moderately cold tolerant.

The earliest that you can plant dianthus in Covington 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. Any later than that and your dianthus may not have a chance to grow to maturity. If you are starting your dianthus indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost is on March 15 in Covington. It might get as low as 10°F during the coldest months of winter.

Since the USDA zone info for Covington is not always accurate the actual date of last frost changes from year to year. Since half of the time in Covington you get surprised by a frost after March 15 be ready to protect your dianthus if you have one of those late frosts.

USDA Zone Info for Covington

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 Covington

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