The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Bloomingdale you can determine when you can plant larkspur by referring to the USDA zone info.

Planting Calendar for Larkspur

Frost tolerance for larkspur:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Since larkspur are one of those plants that can tolerate quite a bit of cold weather you can plant them earlier in the year than more sensitive plants.

The earliest that you can plant larkspur in Bloomingdale 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 larkspur and expect a good harvest is probably September. If you wait any later than that and your larkspur may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your larkspur indoors.

Last Frost Date

On average the last frost is on April 15 in Bloomingdale. It might get as low as -15°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Bloomingdale is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Bloomingdale it frosts late in the year after April 15 so always be ready to protect your larkspur in the event of a surprise late frost.

USDA Zone Info for Bloomingdale

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°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 -10°F.

Plants to Grow in Bloomingdale

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