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

In Sullivan City you can determine when you can plant scallions by reviewing the USDA zone info.

Planting Calendar for Scallions

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

Scallions are one of those plants that can tolerate a tiny bit of cold weather which means that you can get them planted just a bit earlier than other frost tender plants.

The earliest that you can plant scallions in Sullivan City is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant scallions and expect a good harvest is probably September. You probably don't want to wait any later than that or else your scallions may not have a chance to really do well. Starting your scallions indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Sullivan City the average date of last frost happens on February 15. In the coldest months of winter you should expect an average low temperature of 25°F.

Since the USDA zone info for Sullivan City is just an average the actual date of last frost will vary from year to year. Since half of the time in Sullivan City you get surprised by a frost after February 15 be ready to cover your scallions in the event of a surprise late frost.

USDA Zone Info for Sullivan City

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°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 30°F.

Plants to Grow in Sullivan City

You may be interested in your other planting guides for Sullivan City.