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

A common way of making a decision about when to plant salsify is to consult the USDA zone info for Indianapolis.

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 well in a tiny bit of cold which tells us that you can plant them slightly earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant salsify in Indianapolis 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 fully mature. You can get started a couple of weeks earlier by starting your salsify indoors.

Last Frost Date

The average date of last frost is April 15 in Indianapolis. In the coldest months of winter you can expect an average low temperature of -10°F.

Keep in mind that USDA zone info for Indianapolis 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 Indianapolis there is a last frost after April 15 be ready to protect your salsify if you have a surprise late frost.

USDA Zone Info for Indianapolis

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°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 -5°F.

Plants to Grow in Indianapolis

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