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

The first chance to plant cardinal flower in Grosse Pointe can be determined by referring to the USDA zone info.

Planting Calendar for Cardinal Flower

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

Since cardinal flower are not cold tolerant it is necessary to wait until after the last frost before you can plant them.

The earliest that you can plant cardinal flower in Grosse Pointe 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. You probably don't want to wait any later than that or else your cardinal flower may not have a chance to really do well. You can get started a couple of weeks earlier by starting your cardinal flower indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Grosse Pointe. You should expect an average low temperature of -5°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Grosse Pointe is just an average and the actual date of last frost is different every year. Half of the time in Grosse Pointe you get surprised by a frost after April 15 so make sure that you are prepared to protect your cardinal flower in the event of one of those late frosts.

USDA Zone Info for Grosse Pointe

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Grosse Pointe

You may be interested in your other planting guides for Grosse Pointe.