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

A way of getting a good idea when to plant african daisy is to examine the USDA zone info for Rock Island.

Planting Calendar for African Daisy

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

You can plant african daisy a little earlier in the year because they do well in moderate cold.

The earliest that you can plant african daisy in Rock Island 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 african daisy and expect a good harvest is probably September. You probably don't want to wait any later than that or else your african daisy may not have a chance to really do well. If you are starting your african daisy indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

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

Since the USDA zone info for Rock Island is just an average the actual date of last frost will vary from year to year. Half of the time in Rock Island you get surprised by a frost after April 15 so always be ready to cover your african daisy in the event of one of those late frosts.

USDA Zone Info for Rock Island

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 Rock Island

You may be interested in your other planting guides for Rock Island.