Phlox paniculata 'Laura' is a sturdy garden phlox grown for its bright summer display and sweet scent. It forms an upright clump of green leaves and produces heads of purple flowers with a clear white center. This cultivar is well known for better resistance to powdery mildew than many older kinds, which makes it a reliable choice for home gardens. It suits mixed borders, cottage-style planting, and cutting gardens. The flowers also attract butterflies and other pollinators.
This perennial grows best in a sunny spot with soil that stays evenly moist but drains well. Good air movement around the plant helps keep the leaves healthy through the season. Removing faded flower heads can extend the bloom period and helps the plant stay neat. Stems can be trimmed lightly in late spring for a bushier plant and a slightly later display. After the foliage dies back, the old stems can be cut down close to the ground.
Propagation is usually done by division in spring or fall, and basal cuttings are another practical option. Seed is not a reliable way to keep the plant true to type, so it is not the best method for this cultivar. While 'Laura' has useful mildew resistance, it may still have leaf spot or pest problems such as spider mites and phlox plant bugs if conditions are poor. Even so, it remains a valuable perennial for its long summer bloom, fragrance, and strong border color. It is also considered non-toxic for people and pets.