Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's possible to determine when it's the best time to plant dipladenia by using the USDA zone info for Granbury.

Planting Calendar for Dipladenia

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

Since dipladenia require warm weather it's important to wait until after the last frost before you can plant them.

The earliest that you can plant dipladenia in Granbury 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. You probably don't want to wait any later than that or else your dipladenia may not have a chance to fully mature. If you are starting your dipladenia indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost is on March 15 in Granbury. You should expect an average low temperature of 10°F in the coldest months of winter.

Since the USDA zone info for Granbury may not be accurate from year to year the actual date of last frost will vary from year to year. Half of the time in Granbury you get surprised by a frost after March 15 so make sure that you are ready to protect your dipladenia in the event of one of those late frosts.

USDA Zone Info for Granbury

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°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 15°F.

Plants to Grow in Granbury

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