Before planting it is a good idea to find your USDA Zone info to figure out your garden 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 Jefferson can be read to estimate when it's the best time to plant gypsophila.

Planting Calendar for Gypsophila

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

Since gypsophila do well in moderate cold you can plant them a little earlier in the year than more sensitive plants.

The earliest that you can plant gypsophila in Jefferson 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. Starting your gypsophila indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Jefferson. In the coldest months of winter you should expect an average low temperature of -20°F.

Always keep in mind that USDA zone info for Jefferson may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Since half of the time in Jefferson 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 Jefferson

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°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 -15°F.

Plants to Grow in Jefferson

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