The USDA Zone info is a great tool for gardeners to help us estimate 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 will be able to estimate when to plant echinacea by using the USDA zone info for Anchorage.

Planting Calendar for Echinacea

Frost tolerance for echinacea:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

You can plant echinacea a bit earlier in the year because they are barely cold tolerant.

The earliest that you can plant echinacea in Anchorage is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant echinacea and expect a good harvest is probably August. You probably don't want to wait any later than that or else your echinacea may not have a chance to grow to maturity. Starting your echinacea indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is May 15 in Anchorage. You should expect an average low temperature of -25°F in the coldest months of winter.

Always keep in mind that USDA zone info for Anchorage is just an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Anchorage you get a frost after May 15 so always be ready to cover your echinacea in the event of a surprise late frost.

USDA Zone Info for Anchorage

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Anchorage

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