I've recently moved into a new property which has a lovely garden; however, it has 3 "reed" looking plants that are completely flat (see image). I'm wondering if A) should they be flat? B) what are they? and C) what should I do with them now...trim them, leave them? They aren't the most attractive plant to have in the middle of summer in the garden. Thanks for any help you can give me. Regards Dave!
Flattened Reed Type Plant
Certified GKH Gardening Expert
I believe this is a Day Lily plant.
The flowers are done now for this season, but the foliage should be left to die off naturally. This helps the plant store up energy for next seasons flowering.
This plant looks quite large and you may want to divide this plant in the spring.
Here are some link with more information.