One of the best tools that you have as gardeners to help us figure out 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.

By using the USDA zone info for Roosevelt you will be able to estimate when it's the best time to plant salsify.

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.

Since salsify are barely cold tolerant you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant salsify in Roosevelt 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. Any later than that and your salsify may not have a chance to fully mature. You can get started a few weeks earlier by starting your salsify indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Roosevelt. You should expect an average low temperature of -20°F in the coldest months of winter.

Since the USDA zone info for Roosevelt is not always accurate the actual date of last frost will vary from year to year. Since half of the time in Roosevelt it frosts late in the year after April 15 be ready to cover your salsify if you have a late frost.

USDA Zone Info for Roosevelt

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Roosevelt

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