When can I plant Larkspur in Lawrenceville, IL

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

You should be able to figure out when you can plant larkspur by reviewing the USDA zone info for Lawrenceville.

Planting Calendar for Larkspur

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

Larkspur do well in pretty solid cold which means that you can plant them much earlier in the year than more sensitive plants.

A good time to plant larkspur
Possibly ok, but a risky time to plant larkspur
Probably not a good time to plant larkspur

The earliest that you can plant larkspur in Lawrenceville 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. You probably don't want to wait any later than that or else your larkspur may not have a chance to fully mature. Starting your larkspur indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Lawrenceville. It might get as low as -10°F during the coldest months of winter.

Always keep in mind that USDA zone info for Lawrenceville may not be accurate from year to year and our actual date of last frost is different every year. Half of the time in Lawrenceville we get surprised by a frost after April 15 so always be ready to protect your larkspur if we have a surprise late frost.

USDA Zone Info for Lawrenceville

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-10°F
Highest Expected Low-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Lawrenceville

You may be interested in our other planting guides for Lawrenceville.