One of the first steps you take when you are figuring out 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.

A way of making a decision about when to plant catharanthus is to refer to the USDA zone info for Huntingburg.

Planting Calendar for Catharanthus

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

Since catharanthus do not do well in cold weather you need to wait until after the last frost before you can plant them.

The earliest that you can plant catharanthus in Huntingburg 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. If you wait any later than that and your catharanthus may not have a chance to fully mature. Starting your catharanthus indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Huntingburg. You can expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Huntingburg is not always accurate the actual date of last frost changes from year to year. Half of the time in Huntingburg there is a last frost after April 15 so be sure to be ready to cover your catharanthus if you have a late frost.

USDA Zone Info for Huntingburg

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°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 -5°F.

Plants to Grow in Huntingburg

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