One of the first steps you take when you are estimating your gardening schedule is find your 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.

A way of figuring out when it's possible to plant larkspur is to consult the USDA zone info for Buffalo Grove.

Planting Calendar for Larkspur

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

You can plant larkspur quite a bit earlier in the year because they are very cold tolerant.

The earliest that you can plant larkspur in Buffalo Grove 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 really do well. You can get started a little bit earlier by starting your larkspur indoors.

Last Frost Date

The average date of last frost is April 15 in Buffalo Grove. You can expect an average low temperature of -15°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Buffalo Grove is an average and the actual date of last frost will vary from year to year. Half of the time in Buffalo Grove there is a last frost after April 15 so make sure that you are ready to protect your larkspur if you have a late frost.

USDA Zone Info for Buffalo Grove

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 Buffalo Grove

You may be interested in your other planting guides for Buffalo Grove.