For another filler in an arrangement, consider adding ferns to your cutting garden. These typically need part shade to thrive in the garden. Once you cut and add to a bouquet or tabletop display, the greenery will add fullness, especially alongside taller plants, says Speight. "In particular, the Japanese Painted Fern (Athyrium niponicum) adds a silvery tone that can balance, blend, and soften arrangements as needed," she says. "This particular cultivar grows easily in semi-shaded and damp areas." Ferns typically last as long as the rest of the arrangement, typically between seven to 10 days, as long as it stays hydrated.