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 USDA zone info for Rochester should be reffered to in order to estimate when you can plant regal geranium.

Planting Calendar for Regal Geranium

Frost tolerance for regal geranium:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

You can plant regal geranium a bit earlier in the year because they are barely cold tolerant.

The earliest that you can plant regal geranium in Rochester is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant regal geranium and expect a good harvest is probably August. If you wait any later than that and your regal geranium may not have a chance to grow to maturity. Starting your regal geranium indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Rochester. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Rochester is an average the actual date of last frost changes from year to year. Half of the time in Rochester last frost occurs after April 15 so make sure that you are prepared to protect your regal geranium in the event of a late frost.

USDA Zone Info for Rochester

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Rochester

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