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 Mundelein can be read to figure out when 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 has passed.

Napa Valley Fern are not cold tolerant which tells us that you really should wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant napa valley fern in Mundelein 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 grow to maturity. Starting your napa valley fern indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Just be sure to remember that the actual date of last frost is an average because it is based on the USDA zone info for Mundelein and it can change quite a bit from year to year. Since half of the time in Mundelein last frost occurs after April 15 be ready to cover your napa valley fern in the event of one of those late frosts.

USDA Zone Info for Mundelein

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°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 -10°F.

Plants to Grow in Mundelein

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