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.

In Westminster you can determine when it's the best time to plant regal geranium by checking out the USDA zone info.

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 ok in some cold which means that you can plant them slightly earlier in the year than more sensitive plants.

The earliest that you can plant regal geranium in Westminster 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 fully mature. You can get started a couple of weeks earlier by starting your regal geranium indoors.

Last Frost Date

The average date of last frost is January 31 in Westminster. In the coldest months of winter you should expect an average low temperature of 35°F.

Just be sure to remember that USDA zone info for Westminster 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 Westminster last frost occurs after January 31 be ready to cover your regal geranium if you have one of those late frosts.

USDA Zone Info for Westminster

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Westminster

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