When can I plant Larkspur in Zone 8a

One of the best tools that we have as gardeners to help us estimate our gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

The first chance to plant larkspur in Zone 8a should be estimated by looking at the USDA zone info.


Planting Calendar for Larkspur

Frost tolerance for larkspur: Very tolerant of frost.
When you should plant them: Up to 7 weeks before last frost.

Larkspur do ok in a bit of cold which tells us that you can plant them earlier in the year than other frost tender plants.

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

The earliest that you can plant larkspur 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 larkspur and expect a good harvest is probably September. You probably don't want to wait any later than that or else your larkspur may not have a chance to fully mature. You can get started a little bit earlier by starting your larkspur indoors.

Last Frost Date

The average date of last frost is March 15 in Zone 8a. It might get as low as 10°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Zone 8a may not be accurate from year to year and our actual date of last frost can change quite a bit from year to year. Since half of the time in Zone 8a we get surprised by a frost after March 15 be ready to protect your larkspur if we have a surprise 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.