Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Hewitt you can figure out when it's the best time to plant purple coneflower by referring to the USDA zone info.

Planting Calendar for Purple Coneflower

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

Purple Coneflower are one of those plants that can tolerate a tiny bit of cold weather which tells us that you can plant them slightly earlier than other frost tender plants.

The earliest that you can plant purple coneflower in Hewitt 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 purple coneflower and expect a good harvest is probably August. If you wait any later than that and your purple coneflower may not have a chance to really do well. You can get started a couple of weeks earlier by starting your purple coneflower indoors.

Last Frost Date

On average all chance of frost has passed is on March 15 in Hewitt. It might get as low as 15°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Hewitt is an average and the actual date of last frost is different every year. Half of the time in Hewitt there is a last frost after March 15 so just be sure to be ready to protect your purple coneflower in the event of a surprise late frost.

USDA Zone Info for Hewitt

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Hewitt

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