The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Boca Raton should be used to figure out when it's the best time to plant cardinal flower.

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.

Cardinal Flower require warm weather which tells us that you have 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 Boca Raton is February. However, you really should wait until March 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 September. 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. If you are starting your cardinal flower indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Boca Raton the average date of last frost happens on January 31. In the coldest months of winter you should expect an average low temperature of 35°F.

Just be sure to remember that the actual date of last frost is an average because it is based on the USDA zone info for Boca Raton and it can change quite a bit from year to year. Half of the time in Boca Raton there is a last frost after January 31 so make sure that you are prepared to protect your cardinal flower in the event of a surprise late frost.

USDA Zone Info for Boca Raton

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Boca Raton

You may be interested in your other planting guides for Boca Raton.