The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By referring to the USDA zone info for Washington you will be able to estimate when you can plant hamelia.

Planting Calendar for Hamelia

Frost tolerance for hamelia:	Not tolerant of frost.
When to plant:	After the last frost has passed.

It's a bad idea to plant hamelia until after the last frost because they do not do well in cold weather.

The earliest that you can plant hamelia in Washington 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 hamelia and expect a good harvest is probably August. Any later than that and your hamelia may not have a chance to grow to maturity. Starting your hamelia indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Washington. You can expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Washington is an average the actual date of last frost changes from year to year. Since half of the time in Washington last frost occurs after April 15 be ready to cover your hamelia if you have a surprise late frost.

USDA Zone Info for Washington

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Washington

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