Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The earliest that you can plant gypsophila in Harrisburg can be estimated by looking at the USDA zone info.

Planting Calendar for Gypsophila

Frost tolerance for gypsophila:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Gypsophila are moderately cold tolerant which means that you can get them planted earlier than plants that are more sensitive to the cold.

The earliest that you can plant gypsophila in Harrisburg 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 gypsophila and expect a good harvest is probably September. You probably don't want to wait any later than that or else your gypsophila may not have a chance to really do well. You can get started a few weeks earlier by starting your gypsophila indoors.

Last Frost Date

On average the last frost is on April 15 in Harrisburg. In the coldest months of winter you can expect an average low temperature of 0°F.

It's important to remember that USDA zone info for Harrisburg is just an average and the actual date of last frost is different every year. Since half of the time in Harrisburg last frost occurs after April 15 be ready to cover your gypsophila if you have a late frost.

USDA Zone Info for Harrisburg

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Harrisburg

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