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.

In Vernal you can figure out when you can plant snapdragons by referring to the USDA zone info.

Planting Calendar for Snapdragons

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

Snapdragons do well in moderate cold which tells us that you can plant them earlier than more sensitive plants.

The earliest that you can plant snapdragons in Vernal 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 snapdragons and expect a good harvest is probably September. You probably don't want to wait any later than that or else your snapdragons may not have a chance to grow to maturity. If you are starting your snapdragons indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Vernal the average date of last frost happens on April 15. You can expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Vernal may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Vernal you get a frost after April 15 so always be ready to protect your snapdragons in the event of a late frost.

USDA Zone Info for Vernal

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Vernal

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