One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of determining when you can plant salsify is to consult the USDA zone info for Yelm.

Planting Calendar for Salsify

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

Salsify are barely cold tolerant which means that you can get them planted just a bit earlier than other frost tender plants.

The earliest that you can plant salsify in Yelm 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 salsify and expect a good harvest is probably August. You probably don't want to wait any later than that or else your salsify may not have a chance to really do well. Starting your salsify indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is March 15 in Yelm. In the coldest months of winter you should expect an average low temperature of 10°F.

Since the USDA zone info for Yelm is an average the actual date of last frost will vary from year to year. Half of the time in Yelm you get a frost after March 15 so make sure that you are ready to cover your salsify if you have a surprise late frost.

USDA Zone Info for Yelm

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

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

Plants to Grow in Yelm

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