One of the best tools that you have as gardeners to help us determine your gardening schedule is the 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 larkspur in Lenexa can be estimated by reviewing 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.

Larkspur are very cold tolerant which tells us that you can start planting them much earlier than more sensitive plants.

The earliest that you can plant larkspur in Lenexa 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. Any later than that and your larkspur may not have a chance to really do well. If you are starting your larkspur indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Lenexa. In the coldest months of winter you can expect an average low temperature of -5°F.

Since the USDA zone info for Lenexa is an average the actual date of last frost changes from year to year. Since half of the time in Lenexa it frosts late in the year after April 15 be ready to protect your larkspur if you have one of those late frosts.

USDA Zone Info for Lenexa

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Lenexa

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