When to Plant Lavender in Milton, WI

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

It's a good idea to estimate when it's a good idea to plant lavender by looking at the USDA zone info for Milton.


Planting Calendar for Lavender

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

Lavender do ok in mild cold which tells us that you can plant them just a bit earlier in the year than other plants that might not handle the cold.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant lavender
Possibly ok, but a risky time to plant lavender
Probably not a good time to plant lavender

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

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Milton. In the coldest months of winter you should expect an average low temperature of -20°F.

Since the USDA zone info for Milton is an average the actual date of last frost will vary from year to year. Since half of the time in Milton you get a frost after April 15 be ready to cover your lavender if you have a surprise late frost.

USDA Zone Info for Milton

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-20°F
Highest Expected Low-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Milton

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