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.

The USDA zone info for Plaquemine should be reviewed to estimate when you can plant purple coneflower.

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 tend to make it in very little cold which means that you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant purple coneflower in Plaquemine 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 purple coneflower and expect a good harvest is probably September. Any later than that and your purple coneflower may not have a chance to grow to maturity. 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 February 15 in Plaquemine. In the coldest months of winter you can expect an average low temperature of 20°F.

Keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Plaquemine and it changes from year to year. Half of the time in Plaquemine you get a frost after February 15 so make sure that you are ready to cover your purple coneflower in the event of one of those late frosts.

USDA Zone Info for Plaquemine

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Plaquemine

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