The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. 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 Baxter can be reviewed to determine when it's the best time to plant catharanthus.

Planting Calendar for Catharanthus

Frost tolerance for catharanthus:	Not tolerant of frost.
When to plant:	After the last frost has passed.

You really shouldn't plant catharanthus until after the last frost because they require warm weather.

The earliest that you can plant catharanthus in Baxter is May. However, you really should wait until June 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. If you wait any later than that and your catharanthus may not have a chance to grow to maturity. If you are starting your catharanthus indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

The average date of last frost is May 15 in Baxter. You should expect an average low temperature of -35°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Baxter is an average and the actual date of last frost is different every year. Half of the time in Baxter you get surprised by a frost after May 15 so always be ready to cover your catharanthus in the event of a surprise late frost.

USDA Zone Info for Baxter

Here is the info for USDA Zone 3b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-35°F
Highest Expected Low	-30°F

This means that on a really cold year, the coldest it will get is -35°F. On most years you should be prepared to experience lows near -30°F.

Plants to Grow in Baxter

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