The USDA Zone info is a great tool for gardeners to help us estimate 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.

The first chance to plant steirodiscus in Vail can be estimated by looking at the USDA zone info.

Planting Calendar for Steirodiscus

Frost tolerance for steirodiscus:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Steirodiscus do ok in moderate cold which means that you can get them planted just a bit earlier than more sensitive plants.

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

The last month that you can plant steirodiscus and expect a good harvest is probably August. Any later than that and your steirodiscus may not have a chance to grow to maturity. You can get started a little bit earlier by starting your steirodiscus indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on May 15 in Vail. You should expect an average low temperature of -25°F in the coldest months of winter.

It's important to remember that USDA zone info for Vail is not always accurate and the actual date of last frost can change quite a bit from year to year. Since half of the time in Vail last frost occurs after May 15 be ready to cover your steirodiscus in the event of one of those late frosts.

USDA Zone Info for Vail

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 Vail

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