Before planting it is a good idea to find your USDA Zone info to figure out 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.

The best time to plant dipladenia in Manchester should be estimated by looking at the USDA zone info.

Planting Calendar for Dipladenia

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

Dipladenia require warm weather which tells us that it's necessary to wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant dipladenia in Manchester 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 little bit earlier by starting your dipladenia indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Manchester. You can expect an average low temperature of 0°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Manchester may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Since half of the time in Manchester you get surprised by a frost after April 15 be ready to protect your dipladenia in the event of one of those late frosts.

USDA Zone Info for Manchester

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Manchester

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