The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can figure out when to plant gypsophila in Riverton 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 do well in moderate cold 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 Riverton 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. You probably don't want to wait any later than that or else your gypsophila may not have a chance to really do well. If you are starting your gypsophila indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average all chance of frost has passed is on May 15 in Riverton. You can expect an average low temperature of -25°F in the coldest months of winter.

Since the USDA zone info for Riverton is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Riverton it frosts late in the year after May 15 so be sure to be ready to protect your gypsophila in the event of one of those late frosts.

USDA Zone Info for Riverton

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 Riverton

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