Origin
Phlox kelseyi Britt. ssp. kelseyi, commonly known as Kelseyi phlox, is a species of flowering plant that originates from the northern hemisphere. It is commonly found in western North America, especially in the Rocky Mountains region of the United States, with some populations also occurring in Canada.
Common Names
Aside from Kelseyi phlox, this plant is also referred to as Kelseyi's phlox, Sky blue phlox, and Rocky Mountain phlox. The plant is named after the botanist and explorer P. W. Kelsey, who first collected and described the species in 1885.
Uses
Phlox kelseyi Britt. ssp. kelseyi is commonly grown as an ornamental plant due to its beautiful flowers. It is used as ground cover, in rock gardens, and as a border plant. Its vibrant blue or violet flowers provide a lovely display, especially when the plant is grown in dense clusters. Kelseyi phlox is also used by gardeners to attract butterflies and other pollinators as it is a favorite source of nectar.
Appearance
Kelseyi phlox is a low-growing, perennial plant that typically reaches a height of 5-12 inches and spreads 6-12 inches wide. The stems are thin and wiry, and the leaves are small, lance-shaped, and green in color. The flowers are tube-shaped, about 0.5 inches long, and bloom in large clusters from May to July. They come in shades of deep blue, light blue, and violet, with a white center. The plant prefers well-drained soil and full sun exposure to bloom to its fullest potential.
Light Requirements
Phlox kelseyi Britt. ssp. kelseyi, commonly known as Kelsey's creeping phlox, requires full sunlight to partial shade for optimal growth and development. In order to thrive, it should receive at least four to six hours of direct sunlight each day. In areas with hot summers, partial shade in the afternoon may be necessary to prevent the plant from drying out.
Temperature Requirements
Kelsey's creeping phlox can tolerate a variety of temperatures, but it grows best in temperate regions with cool summer temperatures. It prefers a climate with a temperature range between 60 and 70 degrees Fahrenheit during the day and 40 to 50 degrees Fahrenheit at night. This plant can also withstand temperatures as low as -20 degrees Fahrenheit during the winter if it is properly insulated.
Soil Requirements
This plant prefers well-draining soils that are rich in organic matter. It can tolerate a wide range of soil pH levels, but a slightly acidic soil with a pH range between 5.5 and 7.0 is ideal. The soil should also be kept consistently moist but not waterlogged, as too much moisture can cause root rot.
Cultivation
The Phlox kelseyi Britt. ssp. kelseyi is a beautiful perennial plant that is native to the Western United States. It is an ideal plant for rockeries, borders, or any sunny spot in the garden. It is essential to grow the plant in well-drained soil to prevent any waterlogging, which can rot the roots. The plant requires full sun or partial shade, but it should be protected from hot afternoon sun.
Watering Needs
The Phlox kelseyi Britt. ssp. kelseyi requires moderate watering. Constant moisture is essential, but the soil shouldn't be soggy. When watering, ensure that the root area is soaked thoroughly. The plant should be watered in the morning to allow excess moisture to dry before nightfall.
Fertilization
The plant requires frequent fertilization to achieve healthy growth. A balanced fertilizer that contains an adequate amount of nitrogen, phosphorous, and potassium is recommended. The fertilizer should be applied during the growing season, and it should be watered well to promote the even distribution of nutrients.
Pruning
The Phlox kelseyi Britt. ssp. kelseyi rarely requires pruning. The plant grows to a compact height of around 6 inches, with a spread of about 12 inches. However, if the plant becomes leggy and unattractive, the top portions can be pruned back, which will encourage a bushier, more productive plant. Pruning should be carried out in the spring or fall.
Propagation of Phlox kelseyi Britt. ssp. kelseyi
Phlox kelseyi Britt. ssp. kelseyi can be propagated using both vegetative and seed propagation methods. Here are some details:
Vegetative Propagation
Vegetative propagation involves taking portions of the plant and rooting them to create new plants. This can be done using stem cuttings or division.
Stem cuttings: Take a cutting from the plant 3-4 inches tall, remove the lower leaves and stick the cut end into damp soil. Ensure the soil is not too damp to avoid rotting. Enclose the pot with a plastic bag to create a humid environment that will encourage root growth. After a few weeks, water the plant regularly and remove the plastic bag when visible growth is observed.
Division: To propagate through division, dig up the plant during the growing season and separate the roots with a sharp knife. Replant the sections in different pots or sections of the garden. Ensure that each section has a healthy root system and sufficient leaves to support growth.
Seed Propagation
Seed propagation involves using seeds to grow new plants.
Seed collection: Allow the plant to flower and produce seed pods. After they have ripened and started to turn brown, collect the pods and wait for them to dry completely. Remove the seeds from the pods and store them in a cool, dry place.
Sowing seeds: Sow the seeds during the spring when the soil is warm, but the risk of frost has passed. Create a seedbed by loosening the soil and mixing in organic material. Scrape a shallow furrow, sow the seeds at spacing of about 6 inches, and cover with a thin layer of soil. Water the soil gently, and ensure that it is moist but not sopping. Once the seedlings appear, thin them to create space for growth.
Propagation of Phlox kelseyi Britt. ssp. kelseyi is not difficult, and with proper care, one can successfully grow a large number of plants from one plant.
Disease Management
Phlox kelseyi Britt. ssp. kelseyi is generally a very healthy plant that is resistant to many diseases. However, there are a few diseases that might affect this plant, and it is essential to identify and treat them early to avoid serious damage.
One common disease that might affect phlox kelseyi is powdery mildew. This disease appears as a white or gray powdery coating on the leaves and can cause the leaves to twist and curl. To manage this disease, remove affected leaves and discard them to prevent the spores from spreading, increase air circulation by spacing plants properly, and avoid watering the foliage.
Another disease that might affect phlox kelseyi is root rot. This disease is caused by overwatering or poor drainage, which leads to the decay of the root system. Symptoms include wilting, yellowing leaves, and stunted growth. To prevent root rot, ensure proper drainage by planting phlox kelseyi in well-draining soil, avoid overwatering, and remove any dead or decaying foliage and roots.
Pest Management
Like diseases, pests can also affect phlox kelseyi and cause damage to the plant. Some of the common pests that might attack phlox kelseyi include aphids, spider mites, and slugs.
Aphids are tiny insects that suck the sap from the leaves and stems, causing yellowing and stunted growth. To manage aphids, hose them off with a strong jet of water or use insecticidal soap or neem oil.
Spider mites are also pests that might attack phlox kelseyi and suck the sap from the leaves, causing them to turn yellow and drop. To manage spider mites, increase humidity around the plant by misting it regularly, use insecticidal soap or neem oil, and remove any infested leaves.
Slugs are another pest that might attack phlox kelseyi and cause damage to the foliage. They typically feed at night and leave a slimy trail behind. To manage slugs, set up slug traps filled with beer or use diatomaceous earth. Additionally, you can handpick them off the plant early in the morning.
Overall, maintaining good cultural practices, such as proper watering and fertilization, can help prevent diseases and pest infestations in phlox kelseyi Britt. ssp. kelseyi. Regularly inspecting the plant and promptly treating any problems can also ensure that it remains healthy and attractive.
