One of the best tools that you have as gardeners to help us estimate 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.

It's possible to determine when it's possible to plant dipladenia by looking at the USDA zone info for Jasper.

Planting Calendar for Dipladenia

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

Dipladenia do not do well in cold weather which tells us that it's necessary to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant dipladenia in Jasper 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 dipladenia and expect a good harvest is probably August. If you wait any later than that and your dipladenia may not have a chance to really do well. You can get started a little bit earlier by starting your dipladenia indoors.

Last Frost Date

On average the last frost is on April 15 in Jasper. You can expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Jasper is not always accurate the actual date of last frost changes from year to year. Since half of the time in Jasper it frosts late in the year after April 15 be ready to protect your dipladenia in the event of a late frost.

USDA Zone Info for Jasper

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 Jasper

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