One of the first steps you take when you are determining 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.

The USDA zone info for Bellevue can be looked at to figure out when it's the best time to plant echinacea.

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.

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

The earliest that you can plant echinacea in Bellevue is March. However, you really should wait until April 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. If you wait any later than that and your echinacea may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your echinacea indoors.

Last Frost Date

On average all chance of frost has passed is on March 15 in Bellevue. You should expect an average low temperature of 15°F in the coldest months of winter.

Since the USDA zone info for Bellevue may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Bellevue you get surprised by a frost after March 15 so just be sure to be ready to protect your echinacea if you have one of those late frosts.

USDA Zone Info for Bellevue

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°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 20°F.

Plants to Grow in Bellevue

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