The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first opportunity to plant bellis in Winthrop Harbor should be estimated by looking at the USDA zone info.

Planting Calendar for Bellis

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

Bellis can survive in some cold which means that you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant bellis in Winthrop Harbor 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. If you wait any later than that and your bellis may not have a chance to really do well. Starting your bellis indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

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

Keep in mind that USDA zone info for Winthrop Harbor is an average and the actual date of last frost is different every year. Half of the time in Winthrop Harbor you get surprised by a frost after April 15 so always be ready to cover your bellis in the event of one of those late frosts.

USDA Zone Info for Winthrop Harbor

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 Winthrop Harbor

You may be interested in your other planting guides for Winthrop Harbor.