One of the first steps you take when you are making a decision about 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 echinacea by looking at the USDA zone info.

Planting Calendar for Echinacea

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

You can plant echinacea just a tiny bit earlier in the year because they are barely cold tolerant.

The earliest that you can plant echinacea in Sulphur Springs 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 echinacea and expect a good harvest is probably August. Any later than that and your echinacea may not have a chance to grow to maturity. If you are starting your echinacea indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Sulphur Springs the average date of last frost happens on March 15. You can expect an average low temperature of 10°F in the coldest months of winter.

Always keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Sulphur Springs and it can change quite a bit from year to year. Half of the time in Sulphur Springs you get surprised by a frost after March 15 so be sure to be ready to protect your echinacea if you have a late frost.

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.