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

You should be able to figure out when it's the best time to plant ruby grass by looking at the USDA zone info for Rancho Cucamonga.

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.

Ruby Grass do ok in some cold which means that you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant ruby grass in Rancho Cucamonga 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. If you are starting your ruby grass indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost is on February 15 in Rancho Cucamonga. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for Rancho Cucamonga is an average the actual date of last frost will vary from year to year. Since half of the time in Rancho Cucamonga you get surprised by a frost after February 15 be ready to protect your ruby grass in the event of one of those late frosts.

USDA Zone Info for Rancho Cucamonga

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Rancho Cucamonga

You may be interested in your other planting guides for Rancho Cucamonga.