The USDA Zone info is a great tool for gardeners to help us estimate your gardening 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 dipladenia in Zimmerman should be determined by checking out the USDA zone info.

Planting Calendar for Dipladenia

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

Dipladenia do not do well in cold weather which means that you have to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant dipladenia in Zimmerman 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 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 fully mature. Starting your dipladenia indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average all chance of frost has passed is on May 15 in Zimmerman. In the coldest months of winter you should expect an average low temperature of -30°F.

Since the USDA zone info for Zimmerman may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Since half of the time in Zimmerman last frost occurs after May 15 be ready to protect your dipladenia in the event of one of those late frosts.

USDA Zone Info for Zimmerman

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Zimmerman

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