One of the first steps you take when you are making a decision about 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.

A common way of determining when it's the best time to plant welsh onion is to consult the USDA zone info for Fort Worth.

Planting Calendar for Welsh onion

Frost tolerance for welsh onion:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Since welsh onion do ok in moderate cold you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant welsh onion in Fort Worth 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 welsh onion and expect a good harvest is probably August. If you wait any later than that and your welsh onion may not have a chance to fully mature. You can get started a few weeks earlier by starting your welsh onion indoors.

Last Frost Date

The average date of last frost is March 15 in Fort Worth. It might get as low as 10°F during the coldest months of winter.

Always keep in mind that USDA zone info for Fort Worth is just an average and the actual date of last frost will vary from year to year. Half of the time in Fort Worth you get a frost after March 15 so always be ready to cover your welsh onion if you have a surprise late frost.

USDA Zone Info for Fort Worth

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 Fort Worth

You may be interested in your other planting guides for Fort Worth.