Before planting it is a good idea to find your USDA Zone info to determine 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.

By using the USDA zone info for Powell you should be able to figure out when 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 are moderately cold tolerant you can plant them a little bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant gypsophila in Powell is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant gypsophila and expect a good harvest is probably August. Any later than that and your gypsophila may not have a chance to fully mature. Starting your gypsophila indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is May 15 in Powell. In the coldest months of winter you can expect an average low temperature of -25°F.

It's important to remember that the actual date of last frost is just an average because it is based on the USDA zone info for Powell and it changes from year to year. Half of the time in Powell last frost occurs after May 15 so make sure that you are prepared to cover your gypsophila if you have a late frost.

USDA Zone Info for Powell

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Powell

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