One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's possible to estimate when you can plant bittercress by referring to the USDA zone info for Rosenberg.

Planting Calendar for Bittercress

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

Bittercress do ok in moderate cold which tells us that you can start planting them slightly earlier than other plants that might not handle the cold.

The earliest that you can plant bittercress in Rosenberg 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 bittercress and expect a good harvest is probably September. You probably don't want to wait any later than that or else your bittercress may not have a chance to really do well. You can get started a little bit earlier by starting your bittercress indoors.

Last Frost Date

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

Keep in mind that USDA zone info for Rosenberg is not always accurate and the actual date of last frost can change quite a bit from year to year. Since half of the time in Rosenberg you get a frost after February 15 be ready to protect your bittercress in the event of 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.