The USDA Zone info is a great tool for gardeners to help us figure out 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 Duvall can be reffered to in order to estimate when to plant ruby grass.

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 slightly earlier in the year because they do ok in moderate cold.

The earliest that you can plant ruby grass in Duvall is March. However, you really should wait until April 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 August. You probably don't want to wait any later than that or else your ruby grass may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your ruby grass indoors.

Last Frost Date

On average all chance of frost has passed is on March 15 in Duvall. You can expect an average low temperature of 15°F in the coldest months of winter.

Since the USDA zone info for Duvall is an average the actual date of last frost is different every year. Since half of the time in Duvall you get a frost after March 15 be ready to protect your ruby grass in the event of a late frost.

USDA Zone Info for Duvall

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Duvall

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