Plant Description
Ptelea tomentosa Raf. is a deciduous shrub native to North America. It belongs to the Rutaceae family and is commonly known as stinking ash or woolly stinking ash. Typically, it grows up to 6-12 feet tall and 6-8 feet wide. The branches of the plant have a smooth texture when young but become rougher as they mature.
Appearance
The leaves of Ptelea tomentosa Raf. are simple, alternate, and compound with three leaflets. These leaflets are lustrous green on the upper surface and hairy beneath, giving the plant a woolly appearance. The plant produces small, yellow-green flowers that bloom in May to June. The fruit of the plant is a shiny, winged samara that ripens in late summer.
Common Names
Ptelea tomentosa Raf. is commonly known as stinking ash due to the unpleasant odor that is emitted from the plant when the leaves or bark are crushed. The plant is also referred to as woolly stinking ash due to the woolly texture of the leaves.
Uses
The bark, leaves, and fruit of Ptelea tomentosa Raf. have been used in traditional medicine to treat a variety of ailments. Native Americans used the plant to treat rheumatism, fever, and as an insect repellent. The plant has also been used to make dyes and soap. In landscaping, Ptelea tomentosa Raf. is often grown as an ornamental shrub due to its attractive foliage, but its strong odor can make it unappealing to some.
Light Requirements:
Ptelea tomentosa Raf. thrives in environments with full sunlight exposure. It requires at least six hours of direct sunlight per day to grow optimally. Inadequate light exposure can result in stunting and poor growth habits.
Temperature Requirements:
Ptelea tomentosa Raf. is tolerant of a wide range of temperatures; however, it prefers moderately warm temperatures. The best temperature range for growth is between 60? and 80?. Temperatures below 50? or above 90? can negatively affect the plant's growth rate.
Soil Requirements:
The plant thrives best in well-drained, fertile, and loamy soils. It can also grow in soils that are slightly acidic, neutral or slightly alkaline with pH ranging from 5.6-7.8. Soil that is waterlogged for long periods can be detrimental to the growth of Ptelea tomentosa Raf. Additionally, the plant requires a nutrient-rich soil with the proper balance of nitrogen, phosphorus, and potassium to grow optimally.
Cultivation Methods for Ptelea Tomentosa Raf.
Ptelea tomentosa Raf., also known as swamp dogwood or stinking ash, is a deciduous shrub that can grow up to 10 feet tall. It thrives in full sun or partial shade and can tolerate a wide range of soils, including wet soils.
When planting Ptelea tomentosa Raf., choose a location that offers well-drained soil and ample sunlight. Dig a hole that is slightly larger than the root ball and add compost or other organic matter to improve soil fertility. Place the shrub in the hole and backfill with soil, watering well after planting.
Watering Needs for Ptelea Tomentosa Raf.
Ptelea tomentosa Raf. plants require consistent and regular watering to establish a strong root system. During the first growing season, water deeply every week to help the plant develop a deep, strong root system. Mature plants can tolerate periods of dryness, but it is still important to ensure they receive enough water during extended periods of drought.
When watering Ptelea tomentosa Raf., aim to water slowly and deeply, allowing the water to penetrate the soil several inches. Avoid watering the leaves as this can promote the growth of fungal diseases.
Fertilization for Ptelea Tomentosa Raf.
Ptelea tomentosa Raf. plants can benefit from regular fertilization throughout the growing season. A slow-release, balanced fertilizer can help promote healthy growth and flowering. Choose a fertilizer with equal parts nitrogen, phosphorus, and potassium and apply it in early spring and again in mid-summer.
Additionally, applying a layer of compost around the base of the plant can help improve soil fertility and provide essential nutrients throughout the year.
Pruning for Ptelea Tomentosa Raf.
Pruning Ptelea tomentosa Raf. is not necessary but can help promote healthier growth and a more attractive shape. Prune after the plant has finished flowering, typically in late spring or early summer.
Remove any dead or damaged branches, cutting them back to healthy wood. Additionally, thin out any branches that are crossing or rubbing against each other, as well as any branches that are growing too close to the ground. This will help promote better air circulation and reduce the risk of disease.
Propagation of Ptelea tomentosa Raf.
Ptelea tomentosa Raf., commonly known as Woolly Hop Tree, can be propagated by seeds or cuttings.
Propagation by Seeds
The plant produces small, black seeds that can be collected from the dry fruit capsules in the fall. The seeds should be cleaned and dried before planting. They can be sown in the fall in a well-drained soil mix in a seed tray or directly in the garden bed. The seed tray should be kept in a cool, shaded location and watered regularly. The seeds usually germinate in the spring.
Propagation by Cuttings
Ptelea tomentosa can also be propagated by semi-hardwood cuttings taken in early summer. The cuttings should be about 6 inches long and taken from the current year's growth. The leaves on the lower half of the cutting should be removed, and the remaining leaves trimmed to reduce moisture loss. The cuttings should be dipped in rooting hormone and planted in a well-drained soil mix. They should be kept in a shaded location and watered regularly. The cuttings usually root in four to six weeks.
Once the plants have rooted, they can be transplanted to their permanent location in the fall or early spring.
Disease and Pest Management for Ptelea tomentosa Raf.
Ptelea tomentosa Raf., commonly known as Hop Tree or Stinking Ash, is a small deciduous tree that can grow up to 20 feet tall. It is native to North America and is known for its unique citrus scent. While it is a hardy plant, it is still susceptible to certain diseases and pests, which can affect its growth and health significantly.
Common Diseases
One of the most common diseases that affect Ptelea tomentosa Raf. is verticillium wilt. This fungal disease causes the leaves to wilt and turn brown, eventually leading to the death of the tree. To manage this disease, it is essential to remove and destroy all infected plant parts. Also, avoid planting susceptible plants in the same area after removing the infected trees.
Another disease that can affect Hop tree is bacterial canker. It causes cankers on the trunk, which can lead to the death of the tree. To manage it, prune and destroy infected branches and avoid wounding the tree during pruning or other activities that can damage the bark of the tree.
Common Pests
One of the most common pests that affect Ptelea tomentosa Raf. is the Japanese beetle. These beetles feed on the leaves of the tree, causing it to defoliate and reducing its vigor. To manage this pest, handpick the beetles and destroy them. Alternatively, you can use insecticidal soap or neem oil to reduce their populations.
Another pest that can affect Hop tree is the spider mite. They feed on the leaves of the tree, causing it to dry out and drop prematurely. To manage this pest, rinse the tree with water to remove them or use insecticidal soap or neem oil to control their populations.
Overall, managing diseases and pests is crucial for the growth and health of Ptelea tomentosa Raf. Regular observation and prompt action can help prevent significant damage to the tree.
