Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You will be able to figure out when to plant napa valley fern by referring to the USDA zone info for Wilmington.

Planting Calendar for Napa Valley Fern

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

It's probably not a good idea to plant napa valley fern until after the last frost because they require warm weather.

The earliest that you can plant napa valley fern in Wilmington 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 napa valley fern and expect a good harvest is probably August. If you wait any later than that and your napa valley fern may not have a chance to really do well. If you are starting your napa valley fern indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost is on March 15 in Wilmington. You should expect an average low temperature of 10°F in the coldest months of winter.

Since the USDA zone info for Wilmington may not be accurate from year to year the actual date of last frost changes from year to year. Half of the time in Wilmington you get surprised by a frost after March 15 so make sure that you are prepared to cover your napa valley fern if you have a surprise late frost.

USDA Zone Info for Wilmington

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Wilmington

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