Overview of Ipomoea sinensis (Desr.) Choisy subsp. blepharosepala (Hochst. ex A.Rich.) Verdc. ex A.Meeuse
Ipomoea sinensis (Desr.) Choisy subsp. blepharosepala (Hochst. ex A.Rich.) Verdc. ex A.Meeuse is a species of annual flowering plant that belongs to the family Convolvulaceae. It is commonly known as the Japanese morning glory or the Emperor of Japan morning glory. The plant's origin can be traced back to Japan. It is widely cultivated in East Asia, including China and Korea, as well as the United States, Europe, and other regions as an ornamental plant.
Appearance of Ipomoea sinensis
Ipomoea sinensis has heart-shaped leaves that are typically 3-7 centimeters long and 2-7 centimeters wide. The plant produces colorful, trumpet-shaped flowers that are usually 4-9 centimeters in diameter. Its flowers come in an array of colors, including blue, pink, purple, red, and white. The blooms of the Ipomoea sinensis typically open in the early morning and then close during the heat of the day, hence the common name "morning glory."
Uses of Ipomoea sinensis
The Ipomoea sinensis is primarily cultivated as an ornamental plant for its beautiful flowers. However, it also has some traditional medicinal uses. In Chinese medicine, it is used to treat digestive problems, inflammation, and fever. The seeds of the plant contain compounds that have a mild psychoactive effect and are sometimes used in traditional Japanese tea ceremonies.
Overall, the Ipomoea sinensis is a delightful addition to any garden or landscape, adding vibrant color and beauty in the form of its unique, trumpet-shaped flowers.
Light Requirements:
Ipomoea sinensis subsp. blepharosepala grows best in full sun, with at least 6 hours of direct sunlight per day. However, it can also tolerate some light shade, although this may lead to reduced flowering and stunted growth.
Temperature Requirements:
Ipomoea sinensis subsp. blepharosepala is a warm-season plant that thrives in temperatures between 60-85°F (15-29°C). It is important to note that low temperatures can damage the plant, particularly if exposed to frost or temperatures below 50°F (10°C).
Soil Requirements:
Ipomoea sinensis subsp. blepharosepala prefers well-draining soils with a slightly acidic to neutral pH (6.0-7.0). The soil should be rich in organic matter and nutrients, as the plant is a heavy feeder and requires regular fertilization. If the soil is heavy or poorly-draining, it is recommended to add compost or other organic matter to improve drainage.
It is also important to note that the plant can tolerate some drought but prefers to be consistently moist. Overwatering, however, can lead to root rot and other fungal diseases.
Cultivation methods
Ipomoea sinensis (Desr.) Choisy subsp. blepharosepala (Hochst. ex A.Rich.) Verdc. ex A.Meeuse is generally easy to care for and grow. This plant prefers full sun exposure and well-draining soil. It is best to plant this species in a location where it can climb or trail along a fence or trellis.
Propagation can be done from seeds, which should be sown in early spring. The soil should be kept moist until the seedlings emerge, and then watering should be reduced.
Watering needs
Ipomoea sinensis (Desr.) Choisy subsp. blepharosepala (Hochst. ex A.Rich.) Verdc. ex A.Meeuse needs moderate watering, and the soil should be allowed to dry out slightly between each watering. Overwatering can lead to root rot, so it's important to avoid this.
Plants in containers may require more frequent watering.
Fertilization
This species benefits from fertilization during the growing season. A balanced, water-soluble fertilizer can be applied every two weeks, following the instructions on the label.
It is important to avoid over-fertilization, which can cause burning and other issues.
Pruning
Ipomoea sinensis (Desr.) Choisy subsp. blepharosepala (Hochst. ex A.Rich.) Verdc. ex A.Meeuse requires minimal pruning, but it can be beneficial to remove any dead or damaged leaves or stems. If the plant becomes too large or unruly, it can be cut back in early spring to promote healthy new growth.
Propagation of Ipomoea sinensis subsp. blepharosepala
Ipomoea sinensis subsp. blepharosepala is typically propagated through seed and stem cuttings.
Seed Propagation
Seeds should be collected from mature plants and allowed to dry thoroughly before planting. Scarification, or the breaking of the seed’s outer coat, can be done to promote better germination rates. Sow the seeds in well-draining soil, either in the garden directly or in containers. The seeds require warmth to germinate, so it's best to start them indoors before transplanting the seedlings outside once the soil has warmed up.
Stem Cutting Propagation
Stem cuttings should be taken from the mother plant in the early morning, preferably during the growing season. Choose a healthy stem with a diameter of 1/4 inch, and cut a 4- to 6-inch section from the tip of the stem. Remove the leaves from the bottom half of the cutting and dip the cut end in rooting hormone. Plant the cutting in a well-draining potting mix and keep it in a warm, moist area until rooting occurs.
Both seed and stem cutting propagation of Ipomoea sinensis subsp. blepharosepala are reliable methods for producing new plants.
Disease Management
Ipomoea sinensis subsp. blepharosepala is vulnerable to certain diseases that can affect its growth and yield. These are:
- Powdery Mildew: characterized by the appearance of white powdery growth on the leaf surfaces. It affects the plant's ability to produce energy through photosynthesis and can cause stunted growth. Management involves applying fungicides targeted at controlling the powdery mildew. Good sanitation practices, such as removing and destroying infected plants, can also reduce the spread of the disease.
- Root Rot: a fungal disease that affects the roots, causing them to rot and eventually killing the plant. Management involves ensuring well-drained soil and avoiding over-watering.
- Leaf Spot: a fungal disease that causes small spots on the leaves, which can grow and merge, forming large patches that can cause defoliation. Management involves applying systemic fungicides and improving air circulation by spacing the plants correctly to reduce moisture on the leaves.
- Mosaic Virus: this virus causes yellowing, curling, and stunted growth of the leaves. Once infected, the plant cannot be cured. Management involves removing and destroying infected plants and controlling the spread of the virus by controlling the aphids that transmit it.
Pest Management
Ipomoea sinensis subsp. blepharosepala can also be affected by insect pests that can negatively affect its growth and yield. These pests include:
- Aphids: tiny insects that suck sap from the leaves and stems, causing the plant to weaken. Management involves applying insecticidal soap, neem oil, or horticultural oil to control the aphids.
- Spider mites: these are tiny pests that cause yellowing of leaves and reduced plant vigor. They can be controlled through the application of insecticidal soap or neem oil.
- Cutworms: these are larvae that cut through the stems of the plant, causing them to wilt and die. Management involves using physical barriers, such as collars around the base of seedlings, and applying insecticides targeted at cutworms.
- Whiteflies: small white insects that feed on the underside of leaves, causing leaf yellowing and reduced growth. Management involves introducing natural predators into the garden, such as ladybugs, and applying insecticidal soap or neem oil.
