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

In Sulphur Springs you can estimate when it's a good idea to plant asters by referring to the USDA zone info.

Planting Calendar for Asters

Frost tolerance for asters:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Since asters are moderately cold tolerant you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant asters in Sulphur Springs 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 asters and expect a good harvest is probably September. You probably don't want to wait any later than that or else your asters may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your asters indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on March 15 in Sulphur Springs. It might get as low as 10°F during the coldest months of winter.

Always keep in mind that the actual date of last frost is just an average because it is based on the USDA zone info for Sulphur Springs and it changes from year to year. Half of the time in Sulphur Springs it frosts late in the year after March 15 so be sure to be ready to cover your asters in the event of one of those late frosts.

USDA Zone Info for Sulphur Springs

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 Sulphur Springs

You may be interested in your other planting guides for Sulphur Springs.