The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Hawthorne should be reffered to in order to determine when it's possible to plant ornamental grasses.

Planting Calendar for Ornamental Grasses

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

Ornamental Grasses do ok in mild cold which tells us that you can plant them just a tiny bit earlier in the year than other plants that might not handle the cold.

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

Last Frost Date

On average all chance of frost has passed is on January 31 in Hawthorne. In the coldest months of winter you can expect an average low temperature of 35°F.

Since the USDA zone info for Hawthorne is not always accurate the actual date of last frost will vary from year to year. Half of the time in Hawthorne you get surprised by a frost after January 31 so make sure that you are prepared to protect your ornamental grasses in the event of one of those late frosts.

USDA Zone Info for Hawthorne

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 Hawthorne

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