One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of making a decision about when you can plant gypsophila is to refer to the USDA zone info for Johnstown.

Planting Calendar for Gypsophila

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

You can plant gypsophila a little earlier in the year because they do well in moderate cold.

The earliest that you can plant gypsophila in Johnstown 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. If you wait any later than that and your gypsophila may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your gypsophila indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Johnstown. It might get as low as -10°F during the coldest months of winter.

Always keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Johnstown and it changes from year to year. Since half of the time in Johnstown it frosts late in the year after April 15 be ready to cover your gypsophila in the event of a late frost.

USDA Zone Info for Johnstown

Here is the info for USDA Zone 6a.

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

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

Plants to Grow in Johnstown

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