Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. 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 Cibolo should be looked at to figure out when you can plant fennel.

Planting Calendar for Fennel

Frost tolerance for fennel:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Fennel are one of those plants that can tolerate quite a bit of cold weather which means that you can get them planted much earlier than other frost tender plants.

The earliest that you can plant fennel in Cibolo is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant fennel and expect a good harvest is probably September. If you wait any later than that and your fennel may not have a chance to really do well. You can get started a couple of weeks earlier by starting your fennel indoors.

Last Frost Date

The average date of last frost is March 15 in Cibolo. You can expect an average low temperature of 15°F in the coldest months of winter.

Since the USDA zone info for Cibolo is not always accurate the actual date of last frost can change quite a bit from year to year. Since half of the time in Cibolo you get surprised by a frost after March 15 be ready to protect your fennel in the event of a surprise late frost.

USDA Zone Info for Cibolo

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°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 20°F.

Plants to Grow in Cibolo

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