One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first opportunity to plant african daisy in Grinnell should be figured out by using the USDA zone info.

Planting Calendar for African Daisy

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

Since african daisy are moderately cold tolerant you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant african daisy in Grinnell 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. If you wait any later than that and your african daisy may not have a chance to fully mature. You can get started a few weeks earlier by starting your african daisy indoors.

Last Frost Date

The average date of last frost is April 15 in Grinnell. It might get as low as -20°F during the coldest months of winter.

Remember that USDA zone info for Grinnell is just an average and the actual date of last frost will vary from year to year. Half of the time in Grinnell you get surprised by a frost after April 15 so just be sure to be ready to cover your african daisy if you have a late frost.

USDA Zone Info for Grinnell

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Grinnell

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