Geum. Yes. No.

Geum makes a good edging plant: it colonizes and forms a definite border between lawn and garden. Usually, geum is orange, but i like the Prairie Smoke variety.

The bloom time for geum is about 2 weeks. Then it becomes a mass of green leaves, growing next to other green leaves and green grass. Geum just doesn't provide enough bang for the buck, not enough bloom for the bed. So i'm digging out geum and replacing it with variegated hosta. I do like variegated leaves, which 

provide visual interest from spring to fall.

Once upon a time, my inner botanist wanted one of every kind of flower. But now, my gardener-self prevails and decides to focus on good-looking flowerbeds close to the house.

Notice how "pleasant" changes. First, one thing is pleasant--like geum. Then geum becomes unpleasant, and another thing is pleasant--like absence of geum. Pleasant or unpleasant has nothing to do with geum itself. Pleasant and unpleasant simply reflect my inner thoughts. Changing. Changing. Changing.