When can I plant Armeria in Zone 5a

One of the best tools that we have as gardeners to help us determine our 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 our area.

It's possible to estimate when it's possible to plant armeria by looking at the USDA zone info for Zone 5a.


Planting Calendar for Armeria

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

Armeria are very cold tolerant which means that you can get them planted much earlier than more sensitive plants.

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

The earliest that you can plant armeria in Zone 5a 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 armeria and expect a good harvest is probably September. You probably don't want to wait any later than that or else your armeria may not have a chance to really do well. If you are starting your armeria indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Zone 5a. In the coldest months of winter we should expect an average low temperature of -20°F.

It's important to remember that USDA zone info for Zone 5a may not be accurate from year to year and our actual date of last frost will vary from year to year. Half of the time in Zone 5a it frosts late in the year after April 15 so always be ready to cover your armeria if we have one of those late frosts.

USDA Zone Info for Zone 5a

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 Zone 5a

You may be interested in our other planting guides for Zone 5a.