The USDA Zone info is a great tool for gardeners to help us estimate 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 best time to plant fiber optic grass in Sonora should be estimated by reviewing the USDA zone info.

Planting Calendar for Fiber Optic Grass

Frost tolerance for fiber optic grass:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Fiber Optic Grass do not do well in cold weather which means that you really should wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant fiber optic grass in Sonora 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 fiber optic grass and expect a good harvest is probably September. Any later than that and your fiber optic grass may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your fiber optic grass indoors.

Last Frost Date

On average all chance of frost has passed is on February 15 in Sonora. It might get as low as 20°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Sonora is just an average and the actual date of last frost will vary from year to year. Since half of the time in Sonora you get a frost after February 15 be ready to protect your fiber optic grass in the event of a late frost.

USDA Zone Info for Sonora

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 Sonora

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