Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's a good idea to determine when to plant cardinal flower by reviewing the USDA zone info for Cedar Falls.

Planting Calendar for Cardinal Flower

Frost tolerance for cardinal flower:	Not tolerant of frost.
When to plant:	After the last frost.

Since cardinal flower do not do well in cold weather you must wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant cardinal flower in Cedar Falls is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant cardinal flower and expect a good harvest is probably August. Any later than that and your cardinal flower may not have a chance to really do well. You can get started a few weeks earlier by starting your cardinal flower indoors.

Last Frost Date

The average date of last frost is April 15 in Cedar Falls. In the coldest months of winter you should expect an average low temperature of -20°F.

Keep in mind that USDA zone info for Cedar Falls is not always accurate and the actual date of last frost can change quite a bit from year to year. Since half of the time in Cedar Falls there is a last frost after April 15 be ready to protect your cardinal flower in the event of one of those late frosts.

USDA Zone Info for Cedar Falls

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 Cedar Falls

You may be interested in your other planting guides for Cedar Falls.