When can I plant Dianthus in Zone 8a

The USDA Zone info is a great tool for gardeners to help us figure out our gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

In Zone 8a you can determine when to plant dianthus by checking out the USDA zone info.


Planting Calendar for Dianthus

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

You can plant dianthus a little bit earlier in the year because they are moderately cold tolerant.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant dianthus
Possibly ok, but a risky time to plant dianthus
Probably not a good time to plant dianthus

The earliest that you can plant dianthus in Zone 8a 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 fully mature. You can get started a couple of weeks earlier by starting your dianthus indoors.

Last Frost Date

In Zone 8a the average date of last frost happens on March 15. We can expect an average low temperature of 10°F in the coldest months of winter.

Since the USDA zone info for Zone 8a is just an average our actual date of last frost changes from year to year. Half of the time in Zone 8a we get surprised by a frost after March 15 so always be ready to protect your dianthus if we have a late frost.

USDA Zone Info for Zone 8a

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 Low10°F
Highest Expected Low15°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 Zone 8a

You may be interested in our other planting guides for Zone 8a.