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

In Ridgefield you can figure out when it's the best time to plant asparagus fern 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 when the weather gets warmer.

Asparagus Fern require warm weather which tells us that it is important to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant asparagus fern in Ridgefield 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. Any later than that and your asparagus fern may not have a chance to fully mature. Starting your asparagus fern indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is March 15 in Ridgefield. You should expect an average low temperature of 15°F in the coldest months of winter.

It's important to remember that USDA zone info for Ridgefield is an average and the actual date of last frost changes from year to year. Half of the time in Ridgefield you get surprised by a frost after March 15 so make sure that you are prepared to cover your asparagus fern in the event of a late frost.

USDA Zone Info for Ridgefield

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 Ridgefield

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