One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Donna you can estimate when it's possible to plant swan river daisy by reviewing the USDA zone info.

Planting Calendar for Swan River Daisy

Frost tolerance for swan river daisy:	Not tolerant of frost.
When to plant:	After the last frost has passed.

You really shouldn't plant swan river daisy until after the last frost has passed because they do not do well in cold weather.

The earliest that you can plant swan river daisy in Donna 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 swan river daisy and expect a good harvest is probably September. You probably don't want to wait any later than that or else your swan river daisy may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your swan river daisy indoors.

Last Frost Date

In Donna the average date of last frost happens on February 15. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for Donna is not always accurate the actual date of last frost changes from year to year. Since half of the time in Donna you get a frost after February 15 be ready to cover your swan river daisy if you have one of those late frosts.

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.