carol23, Thanks! I knew it couldn't be filipendula ulmaria, as I have a double type of that, and the leaves aren't the same. But your suggestion caused me to look up other types of filipendula, and I think the mystery plant might be filipendula vulgaris--which has more ferny leaves. Thanks again.

Asclepias includes a number of different cultivars with a wide variety of leaf shapes and flowers of many different colors. Are you familiar with butterflyweed? That's an asclepias. I'm not sure how many asclepias have waxy leaves, but not all of them. At least some of the thoroughworts have opposite leaves.

Yea, sigh, many of the dogs are grazers. One of them chewed my Sterling Silver rose so many times, she caused the bush to revert to a rugosa. Last year it bloomed with small red flowers! I had to fence off my asparagus because the dogs kept digging them up and eating them. They all love fruits and vegetables, and some of them eat flowers, too. I used to allow my hedgehogs some garden time, under supervision so they wouldn't get lost. They'd wander through the strawberry bed taking one bite out of each strawberry they came across. They never ate a whole strawberry. They lost their garden privileges. The long-earred hedgies have really expressive faces. The old black Lab in the photo loved to supervise the hedgehogs for me. This one is peeved about my intrusion with the camera. Lorna

That looks like impatiens balfourii, it just showed up in my garden this summer. It's kind of pretty and I've let it go to seed. Something tells me I'm going to regret this one, it looks very invasive. It is from asia.