One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of figuring out when it's the best time to plant artemesia is to examine the USDA zone info for Worland.

Planting Calendar for Artemesia

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

Artemesia do ok in moderate cold which means that you can get them planted just a bit earlier than other plants that might not handle the cold.

The earliest that you can plant artemesia in Worland 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 artemesia and expect a good harvest is probably August. Any later than that and your artemesia may not have a chance to really do well. Starting your artemesia indoors is a great way to get them started a few weeks earlier.

Last Frost Date

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

Since the USDA zone info for Worland may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Worland there is a last frost after May 15 so just be sure to be ready to cover your artemesia if you have one of those late frosts.

USDA Zone Info for Worland

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 Worland

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