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 Issaquah should be used to estimate when it's a good idea to plant fiber optic grass.

Planting Calendar for Fiber Optic Grass

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

You really shouldn't plant fiber optic grass until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant fiber optic grass in Issaquah is April. However, you really should wait until May 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 August. You probably don't want to wait any later than that or else 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 the last frost is on March 15 in Issaquah. It might get as low as 15°F during the coldest months of winter.

It's important to remember that USDA zone info for Issaquah is just an average and the actual date of last frost will vary from year to year. Half of the time in Issaquah you get surprised by a frost after March 15 so just be sure to be ready to protect your fiber optic grass in the event of a late frost.

USDA Zone Info for Issaquah

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 Issaquah

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