The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Vail you can estimate when it's a good idea to plant forget-me-not by using the USDA zone info.

Planting Calendar for Forget-Me-Not

Frost tolerance for forget-me-not:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Forget-Me-Not are moderately cold tolerant which means that you can get them planted earlier than more sensitive plants.

The earliest that you can plant forget-me-not in Vail 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 forget-me-not and expect a good harvest is probably August. Any later than that and your forget-me-not may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your forget-me-not indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on May 15 in Vail. It might get as low as -25°F during the coldest months of winter.

Since the USDA zone info for Vail is an average the actual date of last frost will vary from year to year. Half of the time in Vail last frost occurs after May 15 so just be sure to be ready to protect your forget-me-not in the event of a surprise late frost.

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.