Before planting it is a good idea to find your USDA Zone info to figure out 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.

In Glen Rock you can estimate when to plant napa valley fern by reviewing the USDA zone info.

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 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 Glen Rock 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. Any later than that and your napa valley fern may not have a chance to fully mature. You can get started a little bit earlier by starting your napa valley fern indoors.

Last Frost Date

The average date of last frost is April 15 in Glen Rock. You should expect an average low temperature of 0°F in the coldest months of winter.

Since the USDA zone info for Glen Rock may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Glen Rock there is a last frost after April 15 so always be ready to cover your napa valley fern in the event of one of those late frosts.

USDA Zone Info for Glen Rock

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Glen Rock

You may be interested in your other planting guides for Glen Rock.