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.

By reviewing the USDA zone info for Rockville you will be able to estimate when it's possible to plant gazania.

Planting Calendar for Gazania

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

Gazania do ok in moderate cold which means that you can get them planted just a bit earlier than other plants that might not handle the cold.

The earliest that you can plant gazania in Rockville 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 gazania and expect a good harvest is probably August. Any later than that and your gazania may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your gazania indoors.

Last Frost Date

The average date of last frost is April 15 in Rockville. You can expect an average low temperature of 0°F in the coldest months of winter.

Since the USDA zone info for Rockville is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Rockville there is a last frost after April 15 so make sure that you are ready to cover your gazania in the event of a late frost.

USDA Zone Info for Rockville

Here is the info for USDA Zone 7a.

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

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

Plants to Grow in Rockville

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