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

The USDA zone info for Sullivan can be read to figure out when it's a good idea to plant bellis.

Planting Calendar for Bellis

Frost tolerance for bellis:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Bellis do ok in moderate cold which tells us that you can plant them just a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant bellis in Sullivan 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 bellis and expect a good harvest is probably September. Any later than that and your bellis may not have a chance to grow to maturity. Starting your bellis indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Since the USDA zone info for Sullivan is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Sullivan it frosts late in the year after April 15 so just be sure to be ready to protect your bellis in the event of a late frost.

USDA Zone Info for Sullivan

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 Sullivan

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