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.

In Carrizo Springs you can estimate when it's possible to plant napa valley fern by using the USDA zone info.

Planting Calendar for Napa Valley Fern

Frost tolerance for napa valley fern:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Napa Valley Fern are not cold tolerant which tells us that you have to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant napa valley fern in Carrizo Springs is March. However, you really should wait until April 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 September. If you wait any later than that and your napa valley fern may not have a chance to really do well. Starting your napa valley fern indoors is a great way to get them started a little bit earlier.

Last Frost Date

In Carrizo Springs the average date of last frost happens on February 15. In the coldest months of winter you should expect an average low temperature of 20°F.

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

USDA Zone Info for Carrizo Springs

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Carrizo Springs

You may be interested in your other planting guides for Carrizo Springs.