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.

You will be able to determine when to plant cardinal flower by reviewing the USDA zone info for North Olmsted.

Planting Calendar for Cardinal Flower

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

Cardinal Flower require warm weather which means that you need to wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant cardinal flower in North Olmsted 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 fully mature. You can get started a couple of weeks earlier by starting your cardinal flower indoors.

Last Frost Date

In North Olmsted the average date of last frost happens on April 15. It might get as low as -5°F during the coldest months of winter.

Always keep in mind that USDA zone info for North Olmsted may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in North Olmsted you get surprised by a frost after April 15 so make sure that you are ready to cover your cardinal flower in the event of a surprise late frost.

USDA Zone Info for North Olmsted

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 North Olmsted

You may be interested in your other planting guides for North Olmsted.