The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can estimate when to plant lavender in Marengo by looking at the USDA zone info.

Planting Calendar for Lavender

Frost tolerance for lavender:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

You can plant lavender a bit earlier in the year because they do well in moderate cold.

The earliest that you can plant lavender in Marengo 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 lavender and expect a good harvest is probably September. If you wait any later than that and your lavender may not have a chance to fully mature. You can get started a few weeks earlier by starting your lavender indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Marengo. In the coldest months of winter you should expect an average low temperature of -15°F.

Just be sure to remember that USDA zone info for Marengo is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Marengo you get surprised by a frost after April 15 so be sure to be ready to cover your lavender if you have a surprise late frost.

USDA Zone Info for Marengo

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 Marengo

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