Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of making a decision about when you can plant dipladenia is to look at the USDA zone info for Bonney Lake.

Planting Calendar for Dipladenia

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

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

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

Last Frost Date

On average the last frost is on March 15 in Bonney Lake. It might get as low as 15°F during the coldest months of winter.

Always keep in mind that USDA zone info for Bonney Lake is not always accurate and the actual date of last frost is different every year. Since half of the time in Bonney Lake you get a frost after March 15 be ready to cover your dipladenia in the event of a surprise late frost.

USDA Zone Info for Bonney Lake

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 Bonney Lake

You may be interested in your other planting guides for Bonney Lake.