Overview of Phlox subulata L. var. brittonii (Small) Wherry
Phlox subulata L. var. brittonii (Small) Wherry, also known as Britton's creeping phlox, is a flowering plant that belongs to the Polemoniaceae family. This evergreen perennial is native to eastern North America and can be found from the Appalachian Mountains to the Gulf Coast.
Common Names
Britton's creeping phlox is commonly known by several names, including Appalachian phlox, subulate phlox, and moss pink.
Appearance
This low-growing plant typically reaches heights of 6 inches and spreads up to 2 feet wide. The plant features needle-like, green leaves that grow in a mat-like fashion. In the spring, the plant produces small, star-shaped flowers that bloom in shades of pink, purple, or white. The flowers are held in clusters at the top of the stems and are highly fragrant.
Uses
Phlox subulata L. var. brittonii (Small) Wherry is a popular ornamental plant that is commonly used in rock gardens, border plantings, and groundcovers. It is also used in erosion control due to its spreading growth habit. In addition, the plant has been used medicinally by Native American tribes to treat a variety of ailments, including digestive problems and respiratory issues.
Light
Phlox subulata L. var. brittonii prefers full sunlight to partial shade. It can tolerate some shade, but too much shade will lead to poor blooming performance. Therefore, it is recommended to grow the plant in a location that receives direct sunlight for at least 6 hours per day.
Temperature
The plant can survive in a wide range of temperatures, but it grows best in moderate temperatures. The ideal temperature for Phlox subulata L. var. brittonii is between 60°F (15.5°C) and 75°F (24°C). It can survive temperatures down to -40°F (-40°C) in the winter. However, if the temperature rises above 90°F (32°C) for an extended period, it may cause damage to the plant.
Soil
Phlox subulata L. var. brittonii prefers well-drained soil that is slightly acidic to neutral (pH between 6.0 and 7.0). The plant is tolerant of a wide range of soil types, including sandy, loamy, and clay soils. However, it does not grow well in heavy, wet soils. Therefore, it is recommended to add organic matter to the soil to improve drainage and increase fertility. Additionally, the plant is sensitive to salt, so it is important to avoid planting it near roads or sidewalks that are salted during the winter.
Cultivation Methods
Phlox subulata L. var. brittonii (Small) Wherry is a low-growing perennial plant that is ideal for rock gardens, borders, or ground cover. It thrives in well-draining soil and full sun exposure. Before planting, amend the soil with organic matter to enhance its fertility and improve moisture retention.
In areas with hot climates, it's best to plant the phlox subulata in partial shade to prevent it from drying out. Additionally, the plant requires good air circulation to prevent foliar diseases. To achieve this, space the plants about 12 inches apart.
Watering Needs
Phlox subulata L. var. brittonii (Small) Wherry prefers moist soil conditions. Therefore, it's essential to water the plant regularly during the growing season. In dry weather, water the plant deeply to ensure the water reaches its roots. Avoid overhead watering, as this can lead to foliar diseases.
Once established, the plant is relatively drought-tolerant. However, it's crucial to water it during prolonged dry spells to promote healthy growth.
Fertilization
To promote healthy growth, fertilize the Phlox subulata L. var. brittonii (Small) Wherry in early spring, using a slow-release, balanced fertilizer. Alternatively, you can apply composted organic matter around the base of the plant. Avoid over-fertilizing the plant, as this can lead to excessive vegetative growth and reduced flowering.
Pruning
Phlox subulata L. var. brittonii (Small) Wherry requires minimal pruning. However, you can remove the dead flowers after blooming to prevent self-seeding and promote further blooms. Additionally, you can shear back the plant's foliage after blooming to encourage bushier, more compact growth. Use pruning shears or hedge clippers to do this.
Propagation of Phlox subulata L. var. brittonii (Small) Wherry
Phlox subulata L. var. brittonii (Small) Wherry plants can be propagated through various methods, including seed propagation and vegetative propagation. Both methods require specific care and attention to ensure successful propagation.
Seed Propagation
The propagation of Phlox subulata L. var. brittonii (Small) Wherry can be achieved through seed propagation. Seeds can be collected directly from the plant or bought from a reputable supplier. To ensure successful germination, the seeds should be sown in a well-draining soil mix, watered regularly, and kept in a warm and humid environment.
It is best to sow the seeds indoors during the winter months and transplant them outdoors when the weather warms up. Seedlings should be spaced appropriately to allow for proper growth and development.
Vegetative Propagation
Vegetative propagation is a reliable method of producing identical plants with desirable characteristics. It involves taking cuttings from the mother plant and encouraging them to root and grow into new plants.
The best time to take cuttings is in the early spring when the plant is actively growing. It is important to select a healthy section of the plant that is free from disease or damage.
The cuttings should be around 4-6 inches long and should be taken from the tips of the plant. Once the cuttings have been taken, they should be planted in a well-draining soil mix, watered, and covered with a plastic bag to maintain high humidity levels. The cuttings should be kept in a warm and bright location, but not in direct sunlight.
It is important to monitor the cuttings regularly and adjust the humidity and temperature levels as necessary. Once the cuttings have rooted and are actively growing, they can be transplanted to their permanent location outdoors.
Disease and Pest Management for Phlox subulata L. var. brittonii (Small) Wherry
Phlox subulata L. var. brittonii (Small) Wherry, commonly known as creeping phlox, is a hardy and low-maintenance plant. However, it is not entirely disease and pest-resistant. Here are some of the common diseases and pests that may affect this plant and tips to manage them:
Diseases
1. Powdery Mildew: This fungal disease is common in humid and warm weather conditions and is characterized by the appearance of a white, powdery substance on the leaves and stems of the plant. To manage powdery mildew, remove the affected leaves and provide proper air circulation around the plant. You can also apply a fungicide that is labelled safe for use on creeping phlox.
2. Crown Rot: Crown rot is a fungal disease that affects the plant's base, causing it to turn dark and mushy. This disease is usually caused by overwatering, poor soil drainage, or planting the plant too deeply. To manage it, remove the affected plant and improve soil drainage in the area.
Pests
1. Spider Mites: Spider mites are tiny pests that suck the juice out of the leaves, causing them to turn yellow and drop prematurely. To manage spider mites, spray the plant with a strong blast of water to dislodge them. You can also apply insecticidal soap on the plant, which is effective against these pests.
2. Aphids: Aphids are tiny, pear-shaped insects that suck the plant's sap and secrete honeydew, attracting ants and other pests. To manage aphids, spray the plant with neem oil or insecticidal soap, which suffocates and kills these pests.
In conclusion, managing diseases and pests in Phlox subulata L. var. brittonii (Small) Wherry involves proper care and attention. Ensure you provide good air circulation, improve soil drainage, and use suitable insecticides and fungicides to prevent and manage these issues.
