When can I plant Asparagus in Zone 8b

One of the first steps we take when we are making a decision about our gardening schedule is find our USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

In Zone 8b you can estimate when it's possible to plant asparagus by using the USDA zone info.


Planting Calendar for Asparagus

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

Since asparagus are one of those plants that can tolerate quite a bit of cold weather you can plant them much earlier in the year than other frost tender plants.

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

The earliest that you can plant asparagus in Zone 8b 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 asparagus and expect a good harvest is probably September. Any later than that and your asparagus may not have a chance to really do well. You can get started a couple of weeks earlier by starting your asparagus indoors.

Last Frost Date

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

Since the USDA zone info for Zone 8b is not always accurate our actual date of last frost is different every year. Half of the time in Zone 8b last frost occurs after March 15 so always be ready to protect your asparagus if we have one of those late frosts.

USDA Zone Info for Zone 8b

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 Low15°F
Highest Expected Low20°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 Zone 8b

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