The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By checking out the USDA zone info for Rosenberg you will be able to estimate when it's the best time to plant arabis.

Planting Calendar for Arabis

Frost tolerance for arabis:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Arabis are very cold tolerant which tells us that you can start planting them much earlier than other plants that might not handle the cold.

The earliest that you can plant arabis in Rosenberg is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant arabis and expect a good harvest is probably October. If you wait any later than that and your arabis may not have a chance to really do well. You can get started a couple of weeks earlier by starting your arabis indoors.

Last Frost Date

The average date of last frost is February 15 in Rosenberg. In the coldest months of winter you should expect an average low temperature of 20°F.

Since the USDA zone info for Rosenberg may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Since half of the time in Rosenberg there is a last frost after February 15 be ready to protect your arabis if you have a late frost.

USDA Zone Info for Rosenberg

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Rosenberg

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