One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to estimate when you can plant regal geranium by checking out the USDA zone info for Fairfax.

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.

Since regal geranium are barely cold tolerant you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant regal geranium in Fairfax is February. However, you really should wait until March 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 September. Any later than that and your regal geranium may not have a chance to really do well. You can get started a few weeks earlier by starting your regal geranium indoors.

Last Frost Date

The average date of last frost is February 15 in Fairfax. In the coldest months of winter you can expect an average low temperature of 25°F.

Just be sure to remember that USDA zone info for Fairfax is an average and the actual date of last frost changes from year to year. Since half of the time in Fairfax you get surprised by a frost after February 15 be ready to cover your regal geranium in the event of a late frost.

USDA Zone Info for Fairfax

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°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 30°F.

Plants to Grow in Fairfax

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