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

The USDA zone info for Harrisburg can be used to determine when you can 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 when the weather gets warmer.

Since fiber optic grass are not cold tolerant it is important to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant fiber optic grass in Harrisburg 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. Any later than that and your fiber optic grass may not have a chance to really do well. You can get started a few weeks earlier by starting your fiber optic grass indoors.

Last Frost Date

The average date of last frost is April 15 in Harrisburg. It might get as low as 5°F during the coldest months of winter.

Remember that USDA zone info for Harrisburg is an average and the actual date of last frost will vary from year to year. Since half of the time in Harrisburg last frost occurs after April 15 be ready to protect your fiber optic grass in the event of one of those late frosts.

USDA Zone Info for Harrisburg

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Harrisburg

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