When can I plant Asparagus Fern in Zone 11b

One of the first steps we take when we are determining 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.

The USDA zone info for Zone 11b should be reffered to in order to estimate when it's a good idea to plant asparagus fern.


Planting Calendar for Asparagus Fern

Frost tolerance for asparagus fern: Not tolerant of frost.
When you should plant them: After the last frost has passed.

It's a bad idea to plant asparagus fern until after the last frost has passed because they do not do well in cold weather.

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

The earliest that you can plant asparagus fern in Zone 11b is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant asparagus fern and expect a good harvest is probably November. Any later than that and your asparagus fern may not have a chance to fully mature. If you are starting your asparagus fern indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Zone 11b it never frosts. It might get as low as 45°F during the coldest months of winter.

Since the USDA zone info for Zone 11b is just an average our actual date of last frost changes from year to year. Since it never frosts in Zone 11b you do not have to be ready to cover your asparagus fern if we have a surprise late frost.

USDA Zone Info for Zone 11b

Here is the info for USDA Zone 11b.

Average Date of Last Frost (spring)Never
Average Date of First Frost (fall)Never
Lowest Expected Low45°F
Highest Expected Low50°F

This means that on a really cold year, the coldest it will get is 45°F. On most years you should be prepared to experience lows near 50°F.

Plants to Grow in Zone 11b

You may be interested in our other planting guides for Zone 11b.