One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

One way of getting a good idea when it's the best time to plant armeria is to examine the USDA zone info for Crystal Lake.

Planting Calendar for Armeria

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

Armeria do well in a bit of cold which tells us that you can plant them earlier in the year than more sensitive plants.

The earliest that you can plant armeria in Crystal Lake 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 fully mature. You can get started a couple of weeks earlier by starting your armeria indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Crystal Lake. 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 Crystal Lake may not be accurate from year to year and the actual date of last frost changes from year to year. Since half of the time in Crystal Lake last frost occurs after April 15 be ready to cover your armeria in the event of a surprise late frost.

USDA Zone Info for Crystal Lake

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 Crystal Lake

You may be interested in your other planting guides for Crystal Lake.