One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can figure out when it's a good idea to plant bleeding hearts in Algonquin by using the USDA zone info.

Planting Calendar for Bleeding Hearts

Frost tolerance for bleeding hearts:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

You can plant bleeding hearts a bit earlier in the year because they do ok in moderate cold.

The earliest that you can plant bleeding hearts in Algonquin is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant bleeding hearts and expect a good harvest is probably August. Any later than that and your bleeding hearts may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your bleeding hearts indoors.

Last Frost Date

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

Since the USDA zone info for Algonquin is not always accurate the actual date of last frost is different every year. Half of the time in Algonquin there is a last frost after April 15 so make sure that you are ready to cover your bleeding hearts if you have one of those late frosts.

USDA Zone Info for Algonquin

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 Algonquin

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