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.

The USDA zone info for Washington can be reffered to in order to estimate when it's possible to plant lantana.

Planting Calendar for Lantana

Frost tolerance for lantana:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's not a good idea to plant lantana until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant lantana 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 lantana and expect a good harvest is probably August. If you wait any later than that and your lantana may not have a chance to fully mature. Starting your lantana indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Washington. It might get as low as 0°F during the coldest months of winter.

Always keep in mind that USDA zone info for Washington is an average and the actual date of last frost will vary from year to year. Since half of the time in Washington you get a frost after April 15 be ready to cover your lantana in the event of a late frost.

USDA Zone Info for Washington

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°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.