When to Plant Lunaria in Washington, IL

One of the best tools that you have as gardeners to help us estimate your 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 your area.

You can determine when it's the best time to plant lunaria in Washington by looking at the USDA zone info.


Planting Calendar for Lunaria

Frost tolerance for lunaria: Tolerant of some frost.
When to plant: Up to 5 weeks before last frost.

Lunaria do ok in a little bit of cold which means that you can plant them just a bit earlier in the year than other frost tender plants.

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

The earliest that you can plant lunaria in Washington 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 lunaria and expect a good harvest is probably September. You probably don't want to wait any later than that or else your lunaria may not have a chance to really do well. You can get started a couple of weeks earlier by starting your lunaria indoors.

Last Frost Date

In Washington the average date of last frost happens on April 15. In the coldest months of winter you should expect an average low temperature of -15°F.

It's important to remember that USDA zone info for Washington is just an average and the actual date of last frost will vary from year to year. Since half of the time in Washington last frost occurs after April 15 be ready to protect your lunaria in the event of one of those late frosts.

USDA Zone Info for Washington

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 Washington

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