One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of making a decision about when it's possible to plant napa valley fern is to examine the USDA zone info for Mentor.

Planting Calendar for Napa Valley Fern

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

It's not a good idea to plant napa valley fern until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant napa valley fern in Mentor 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. You probably don't want to wait any later than that or else your napa valley fern may not have a chance to really do well. You can get started a couple of weeks earlier by starting your napa valley fern indoors.

Last Frost Date

The average date of last frost is April 15 in Mentor. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for Mentor is just an average the actual date of last frost is different every year. Since half of the time in Mentor you get surprised by a frost after April 15 be ready to protect your napa valley fern if you have one of those late frosts.

USDA Zone Info for Mentor

Here is the info for USDA Zone 6b.

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

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

Plants to Grow in Mentor

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