Cattails and Bullrushes grow in hollow wet pockets and ditches, or in the calmer waters on the side of lakes or ponds. You won't find them growing where the water is swiftly moving. The leaves stay green well into the autumn, only turning brown when there is frost. Winter and fall cattails will be slightly ratty, as some of their seeds will have dropped off. If you are representing a summer scene, your cattails will be plump, and uniformly fuzzy.
To make a realistic miniature landscape, group them in a small bay on one edge of a water feature, or make a lower grade for a ditch and plant them in that along the side of a road. When planting them in a model landscape, make sure the stems stay straight. The cattails will lean, but the stems don't curve very much. They grow very closely together.
If you are using the cattails for a floral arrangement in a dolls house scale scene, remember that the stems will be very straight. Used in floral arrangements the leaves are never left attached to the stem but added in by the florist, so make sure you do the same thing in scale arrangements.
