One of the first steps you take when you are figuring out 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 way of getting a good idea when it's possible to plant ornamental grasses is to check out the USDA zone info for Robstown.

Planting Calendar for Ornamental Grasses

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

You can plant ornamental grasses slightly earlier in the year because they are barely cold tolerant.

The earliest that you can plant ornamental grasses in Robstown 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 ornamental grasses and expect a good harvest is probably September. You probably don't want to wait any later than that or else your ornamental grasses may not have a chance to really do well. Starting your ornamental grasses indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost is on February 15 in Robstown. It might get as low as 25°F during the coldest months of winter.

Always keep in mind that USDA zone info for Robstown may not be accurate from year to year and the actual date of last frost will vary from year to year. Since half of the time in Robstown there is a last frost after February 15 be ready to cover your ornamental grasses in the event of a late frost.

USDA Zone Info for Robstown

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 Robstown

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