Introduction
Hemerocallis micrantha, commonly known as the small-flowered daylily, is a perennial herbaceous plant which belongs to the Hemerocallis genus. The plant is native to Eastern Asia, including China, Japan, and Korea.
Appearance
The Hemerocallis micrantha plant typically grows up to 30-60 cm in height and has a spread of about 30-60 cm wide. The plant produces clumps of narrow, strap-shaped leaves with a length of 30-60 centimeters and a width of 0.5-1.5 cm. Each plant produces 4-6 flowering scapes that rise above the foliage and display bright yellow flowers.
Common Names
Aside from being called small-flowered daylily or Hemerocallis micrantha, the plant is also known by other common names across regions. In Korea, the plant is called Chungseon. In Japan, the plant is called Ootanni-botan, and in China, it is called Yuèjiàn h?dié.
Uses
Small-flowered daylily plants have various uses across regions and cultures. The young shoots and leaves are consumed in Korea as a vegetable and are believed to have health benefits, including anti-inflammatory properties. In China, the plant extracts have been used in traditional medicine to remedy various illnesses such as inflammation, headaches, and digestive problems.
In modern gardening, Hemerocallis micrantha cultivars are popular for their bright yellow flowers and long blooming period, making them a significant addition to any garden or landscape.
Light Requirements
H. micrantha requires full sunlight exposure to grow and produce flowers. It cannot tolerate shade or partial shade as it may affect the plant's growth and decreases the number of blooms produced.
Temperature Requirements
The ideal temperature for H. micrantha growth ranges from 65 to 75 degrees Fahrenheit. The plant is cold-hardy and can tolerate brief periods of frost, but extended exposure to extreme cold can harm the plant.
Soil Requirements
The plant prefers well-draining soil that is rich in organic matter. A pH level between 6.0 and 6.5 is ideal for H. micrantha. The soil should be kept moist but not wet, as waterlogging can lead to root rot. Adding compost or other organic matter to the soil can improve soil quality and nutrient content.
Cultivation
Hemerocallis micrantha, also known as small-flowered daylily, is a perennial plant that is easy to grow. It thrives in USDA hardiness zones 4 through 9 and prefers full sun to partial shade. It grows well in well-drained soil with a pH of 6.5 to 7.5.
The plant can be propagated through division, and the best time to do this is in the early spring or fall. Before planting, amend the soil with organic matter to ensure good drainage and fertility.
Watering Needs
Hemerocallis micrantha requires regular watering, especially during the hot summer months. Water the plant deeply once a week, making sure the soil is moist but not saturated. Avoid overhead watering as this can lead to the development of diseases.
If you live in an area with heavy rainfall, you may not need to water the plant as frequently. However, if you live in an area with little rainfall, you will need to water the plant more often.
Fertilization
Hemerocallis micrantha benefits from regular fertilization, which will promote healthy growth and improve flowering. Fertilize the plant in the early spring and again in mid-summer with a balanced fertilizer, such as a 10-10-10 formula. Be sure to follow the manufacturer's instructions for application rates.
Avoid over-fertilizing the plant, as this can lead to excessive foliage growth and reduced flowering.
Pruning
Hemerocallis micrantha does not require extensive pruning, but removing spent flowers can encourage the plant to produce more blooms. Cut the spent flower stalks close to the base of the plant using clean, sharp scissors or pruning shears.
In the fall, after the plant has finished blooming, remove any dead or yellowing leaves to promote good health and appearance.
Remember to always sterilize your pruning tools before and after use to prevent the spread of diseases.
Propagation of Hemerocallis micrantha
Hemerocallis micrantha, commonly known as small-flowered daylily, is a perennial plant that can be propagated through different methods. Here are the common propagation methods for this plant:
Division
The most common and easiest propagation method for Hemerocallis micrantha is division. This method is best done in spring or fall when the plant is actively growing. To divide the plant, you need to dig up the clump and gently separate the individual fans or growth points. Make sure each division has healthy roots and leaves. You can plant the divisions immediately at the same depth as the mother plant and water them well to encourage new growth.
Seed
Hemerocallis micrantha can also be propagated by seed, but this method is more challenging and takes longer to achieve mature plants. You can collect seeds from the fruits after they ripen in late summer or early fall. Soak the seeds in water for 24 hours to help break their dormancy. Then, sow the seeds in a well-draining soil mix in pots or trays and keep them in a warm, moist, and bright area. It may take several weeks to months for the seeds to germinate, depending on the conditions. Once the seedlings are big enough to handle, you can transplant them into individual containers or directly into the garden.
Cuttings
Another propagation method for Hemerocallis micrantha is through stem cuttings. This method is best done in early summer when the plant is actively growing. Take a cutting of about 10 cm long from the tip of a healthy stem, remove the lower leaves, dip the cut end in rooting hormone powder, and insert it into a well-draining soil mix. Keep the cutting in a warm, moist, and shaded area and water it regularly. It may take several weeks for roots and new growth to form. Once the cutting has established roots, you can transplant it into a larger container or directly into the garden.
Overall, Hemerocallis micrantha is an easy plant to propagate through division and also possible to propagate by seed or cuttings, although they may take more time and effort to succeed.
Disease Management
Hemerocallis micrantha is generally considered a low-maintenance plant with few disease issues, but there are a few common diseases that can affect them. These include:
- Leaf streak: this fungal disease is characterized by brown or yellow streaks on the leaves. It can be managed by removing infected leaves and providing good air circulation around the plant.
- Crown rot: caused by a soil-borne fungus, this disease can rot the plant's crown and lead to death. To manage it, avoid planting in poorly-drained soils and make sure the plants are not overcrowded.
Preventative measures such as good garden hygiene, such as keeping the area free from debris and weeds, and regular inspection of plants for any signs of disease, can help to reduce the risk of disease.
Pest Management
Hemerocallis micrantha is also generally not prone to pest issues. However, there are a few common pests that can affect them:
- Thrips: these tiny insects can cause distorted or discolored leaves. They can be managed by removing affected leaves and providing good air circulation around the plant.
- Spider mites: these mites can cause yellowed or stippled leaves and webbing on the plant. They can be managed by applying a spray of water to the plant to wash the mites away, or by using insecticidal soap.
- Slugs and snails: these pests can chomp on the leaves and flowers of the plant. They can be managed by setting out traps, such as shallow dishes of beer, or by handpicking and removing them.
Regularly inspecting plants for signs of pests, removing any affected plant parts, and maintaining a healthy garden environment can help to prevent pest problems from getting out of control.
