The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By reviewing the USDA zone info for Palos Hills it's a good idea to determine when you can 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.

Salsify do ok in mild cold which means that you can plant them just a tiny bit earlier in the year than other frost tender plants.

The earliest that you can plant salsify in Palos Hills 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. If you wait any later than that and your salsify may not have a chance to fully mature. If you are starting your salsify indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost is on April 15 in Palos Hills. In the coldest months of winter you should expect an average low temperature of -15°F.

Always keep in mind that USDA zone info for Palos Hills may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Since half of the time in Palos Hills last frost occurs after April 15 be ready to protect your salsify if you have a surprise late frost.

USDA Zone Info for Palos Hills

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 Palos Hills

You may be interested in your other planting guides for Palos Hills.