One of the first steps you take when you are figuring out 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.

The USDA zone info for Florissant can be used to figure out when it's possible to plant napa valley fern.

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 all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant napa valley fern in Florissant 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

On average the last frost when the weather gets warmer is on April 15 in Florissant. You can expect an average low temperature of -5°F in the coldest months of winter.

Since the USDA zone info for Florissant is not always accurate the actual date of last frost is different every year. Half of the time in Florissant last frost occurs after April 15 so make sure that you are prepared to protect your napa valley fern in the event of a late frost.

USDA Zone Info for Florissant

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 Florissant

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