One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You should be able to estimate when to plant fennel by looking at the USDA zone info for Lake Dallas.

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 plant them a quite a bit earlier than plants that are more sensitive to the cold.

The earliest that you can plant fennel in Lake Dallas 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. Any later than that and your fennel may not have a chance to fully mature. Starting your fennel indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is March 15 in Lake Dallas. In the coldest months of winter you should expect an average low temperature of 10°F.

Remember that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Lake Dallas and it will vary from year to year. Half of the time in Lake Dallas it frosts late in the year after March 15 so always be ready to cover your fennel if you have a surprise late frost.

USDA Zone Info for Lake Dallas

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Lake Dallas

You may be interested in your other planting guides for Lake Dallas.