One of the first steps you take when you are figuring out 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.

The first chance to plant cardinal flower in Gardena can be estimated 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.

It's a bad idea to plant cardinal flower until after all chance of frost has passed because they do not do well in cold weather.

The earliest that you can plant cardinal flower in Gardena 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. Any later than that and your cardinal flower may not have a chance to fully mature. You can get started a few weeks earlier by starting your cardinal flower indoors.

Last Frost Date

The average date of last frost is January 31 in Gardena. It might get as low as 35°F during the coldest months of winter.

Always keep in mind that USDA zone info for Gardena is just an average and the actual date of last frost will vary from year to year. Since half of the time in Gardena there is a last frost after January 31 be ready to cover your cardinal flower in the event of one of those late frosts.

USDA Zone Info for Gardena

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 Gardena

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