The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of determining when it's the best time to plant asparagus fern is to examine the USDA zone info for Paso Robles.

Planting Calendar for Asparagus Fern

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

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

The earliest that you can plant asparagus fern in Paso Robles is April. However, you really should wait until May 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 August. If you wait any later than that and your asparagus fern may not have a chance to grow to maturity. You can get started a little bit earlier by starting your asparagus fern indoors.

Last Frost Date

In Paso Robles the average date of last frost happens on March 15. It might get as low as 15°F during the coldest months of winter.

Since the USDA zone info for Paso Robles is just an average the actual date of last frost will vary from year to year. Since half of the time in Paso Robles it frosts late in the year after March 15 be ready to cover your asparagus fern in the event of one of those late frosts.

USDA Zone Info for Paso Robles

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 Low	15°F
Highest Expected Low	20°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 Paso Robles

You may be interested in your other planting guides for Paso Robles.