One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The best time to plant asparagus fern in Fairfax should be determined by using 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.

It's probably not a good idea to plant asparagus fern until after the last frost because they are not cold tolerant.

The earliest that you can plant asparagus fern in Fairfax 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. 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 few weeks earlier by starting your asparagus fern indoors.

Last Frost Date

The average date of last frost is February 15 in Fairfax. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for Fairfax may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Since half of the time in Fairfax it frosts late in the year after February 15 be ready to protect your asparagus fern in the event of a late frost.

USDA Zone Info for Fairfax

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 Low	25°F
Highest Expected Low	30°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 Fairfax

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