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.

You will be able to figure out when you can plant ruby grass by using the USDA zone info for San Mateo.

Planting Calendar for Ruby Grass

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

You can plant ruby grass a bit earlier in the year because they do ok in moderate cold.

The earliest that you can plant ruby grass in San Mateo 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 ruby grass and expect a good harvest is probably September. If you wait any later than that and your ruby grass may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your ruby grass indoors.

Last Frost Date

On average all chance of frost has passed is on January 31 in San Mateo. It might get as low as 30°F during the coldest months of winter.

Always keep in mind that USDA zone info for San Mateo is not always accurate and the actual date of last frost changes from year to year. Half of the time in San Mateo last frost occurs after January 31 so just be sure to be ready to cover your ruby grass if you have a surprise late frost.

USDA Zone Info for San Mateo

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in San Mateo

You may be interested in your other planting guides for San Mateo.