Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You will be able to determine when it's a good idea to plant yarrow by checking out the USDA zone info for Uvalde.

Planting Calendar for Yarrow

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

Yarrow do well in a bit of cold which means that you can plant them quite a bit earlier in the year than plants that are more sensitive to the cold.

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

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

Last Frost Date

On average the last frost is on February 15 in Uvalde. You can expect an average low temperature of 20°F in the coldest months of winter.

It's important to remember that USDA zone info for Uvalde is an average and the actual date of last frost changes from year to year. Since half of the time in Uvalde it frosts late in the year after February 15 be ready to cover your yarrow in the event of a late frost.

USDA Zone Info for Uvalde

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 Uvalde

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