When to Plant Asparagus Fern in Pleasanton, CA

One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first opportunity to plant asparagus fern in Pleasanton can be estimated by reviewing the USDA zone info.


Planting Calendar for Asparagus Fern

Frost tolerance for asparagus fern: Not tolerant of frost.
When to plant: After the last frost.

Since asparagus fern are not cold tolerant you have to wait until after the last frost has passed before you can plant them.

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 Pleasanton is March. However, you really should wait until April 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 September. Any later than that and your asparagus fern may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your asparagus fern indoors.

Last Frost Date

On average all chance of frost has passed is on February 15 in Pleasanton. You can expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Pleasanton is not always accurate the actual date of last frost is different every year. Half of the time in Pleasanton last frost occurs after February 15 so always be ready to cover your asparagus fern if you have a surprise late frost.

USDA Zone Info for Pleasanton

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)February 15
Average Date of First Frost (fall)December 15
Lowest Expected Low25°F
Highest Expected Low30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Pleasanton

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