Phlox adsurgens, commonly known as Northern Phlox, is a decumbent herbaceous perennial native to moist, open woodlands and forest edges in the Pacific Northwest, specifically Oregon and the northern Coast Ranges of California. It typically forms mats with erect flowering stems up to 12 inches long. The plant is characterized by its oval to lance-shaped leaves and clusters of showy, five-lobed, pink to lavender flowers that bloom in late spring to early summer. The specific epithet ’adsurgens’ refers to the upward growth of its flowering stems.

Northern Phlox is valued for its ornamental flowers, which have earned it the Royal Horticultural Society’s Award of Garden Merit. It is often used in rock gardens, as a ground cover, or in border plantings due to its mat-forming habit and attractive blooms. This perennial thrives in well-drained soil, requires moderate watering, and performs best in partial to full sun conditions. While it is generally easy to maintain, it can be susceptible to powdery mildew and should be monitored for this disease. Northern Phlox is not known for aggressive roots or significant pest problems, making it a desirable addition to many gardens. It is also appreciated for its ability to attract pollinators such as butterflies and hummingbirds.CC BY-SA 4.0