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.

One way of estimating when it's possible to plant regal geranium is to consult the USDA zone info for Dunbar.

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.

Regal Geranium do well in mild cold which means that you can plant them a bit earlier in the year than other frost tender plants.

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

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Dunbar. In the coldest months of winter you can expect an average low temperature of -5°F.

Since the USDA zone info for Dunbar is not always accurate the actual date of last frost can change quite a bit from year to year. Since half of the time in Dunbar you get surprised by a frost after April 15 be ready to protect your regal geranium in the event of a late frost.

USDA Zone Info for Dunbar

Here is the info for USDA Zone 6b.

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

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

Plants to Grow in Dunbar

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