Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of estimating when you can plant cardinal flower is to check out the USDA zone info for Peekskill.

Planting Calendar for Cardinal Flower

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

It's probably a bad idea to plant cardinal flower until after the last frost because they require warm weather.

The earliest that you can plant cardinal flower in Peekskill 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 grow to maturity. If you are starting your cardinal flower indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Peekskill. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for Peekskill may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Peekskill there is a last frost after April 15 so be sure to be ready to cover your cardinal flower in the event of one of those late frosts.

USDA Zone Info for Peekskill

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 Peekskill

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