One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Canby you can figure out when to plant cardinal flower by checking out 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 when the weather gets warmer.

Since cardinal flower are not cold tolerant you need to wait until after the last frost has passed before you can plant them.

The earliest that you can plant cardinal flower in Canby 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

On average the last frost when the weather gets warmer is on March 15 in Canby. It might get as low as 15°F during the coldest months of winter.

Since the USDA zone info for Canby may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Since half of the time in Canby you get a frost after March 15 be ready to protect your cardinal flower if you have a late frost.

USDA Zone Info for Canby

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°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 20°F.

Plants to Grow in Canby

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