Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first opportunity to plant catharanthus in Marksville should be estimated by reviewing the USDA zone info.

Planting Calendar for Catharanthus

Frost tolerance for catharanthus:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Catharanthus require warm weather which means that you need to wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant catharanthus in Marksville is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant catharanthus and expect a good harvest is probably August. You probably don't want to wait any later than that or else your catharanthus may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your catharanthus indoors.

Last Frost Date

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

Just be sure to remember that USDA zone info for Marksville is just an average and the actual date of last frost will vary from year to year. Half of the time in Marksville you get a frost after March 15 so be sure to be ready to cover your catharanthus in the event of a surprise late frost.

USDA Zone Info for Marksville

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 Marksville

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