One of the first steps you take when you are estimating 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.

You should be able to estimate when you can plant fountain grass by checking out the USDA zone info for Donna.

Planting Calendar for Fountain Grass

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

Fountain Grass do well in some cold which means that you can plant them slightly earlier in the year than more sensitive plants.

The earliest that you can plant fountain grass in Donna 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 fountain grass and expect a good harvest is probably September. Any later than that and your fountain grass may not have a chance to really do well. Starting your fountain grass indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Donna the average date of last frost happens on February 15. You can expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Donna may not be accurate from year to year the actual date of last frost will vary from year to year. Half of the time in Donna last frost occurs after February 15 so make sure that you are prepared to protect your fountain grass in the event of a surprise late frost.

USDA Zone Info for Donna

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Donna

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