One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. 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 Rochester should be figured out 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 are not cold tolerant which tells us that you must wait until it warms up after the last frost before you can plant them.

The earliest that you can plant dipladenia in Rochester 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. You probably don't want to wait any later than that or else your dipladenia may not have a chance to really do well. You can get started a couple of weeks earlier by starting your dipladenia indoors.

Last Frost Date

In Rochester the average date of last frost happens on May 15. You should expect an average low temperature of -25°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Rochester is just an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Rochester there is a last frost after May 15 be ready to protect your dipladenia in the event of one of those late frosts.

USDA Zone Info for Rochester

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Rochester

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