When can I plant Lavender in Zone 1b

One of the first steps we take when we are estimating our gardening schedule is find our USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

The first opportunity to plant lavender in Zone 1b should be estimated by reviewing the USDA zone info.


Planting Calendar for Lavender

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

Lavender are one of those plants that can tolerate a little bit of cold weather which tells us that you can plant them a little bit earlier than other frost tender plants.

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 Zone 1b is May. However, you really should wait until June if you don't want to take any chances.

The last month that you can plant lavender and expect a good harvest is probably July. If you wait any later than that and 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

In Zone 1b the average date of last frost happens on June 15. We should expect an average low temperature of -55°F in the coldest months of winter.

Keep in mind that our actual date of last frost is not always accurate because it is based on the USDA zone info for Zone 1b and it is different every year. Half of the time in Zone 1b we get surprised by a frost after June 15 so be sure to be ready to cover your lavender in the event of one of those late frosts.

USDA Zone Info for Zone 1b

Here is the info for USDA Zone 1b.

Average Date of Last Frost (spring)June 15
Average Date of First Frost (fall)July 15
Lowest Expected Low-55°F
Highest Expected Low-50°F

This means that on a really cold year, the coldest it will get is -55°F. On most years you should be prepared to experience lows near -50°F.

Plants to Grow in Zone 1b

You may be interested in our other planting guides for Zone 1b.