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.

One way of getting a good idea when to plant dipladenia is to use the USDA zone info for Cortez.

Planting Calendar for Dipladenia

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

Since dipladenia do not do well in cold weather it is necessary to wait until after the last frost before you can plant them.

The earliest that you can plant dipladenia in Cortez 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. Any later than that and your dipladenia may not have a chance to fully mature. You can get started a few weeks earlier by starting your dipladenia indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Cortez. In the coldest months of winter you can expect an average low temperature of -10°F.

Always keep in mind that USDA zone info for Cortez is not always accurate and the actual date of last frost changes from year to year. Half of the time in Cortez there is a last frost after April 15 so always be ready to protect your dipladenia if you have one of those late frosts.

USDA Zone Info for Cortez

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 Cortez

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