Calicium minutissimum G. Merr.
Calicium minutissimum G. Merr. is a species of flowering plant that belongs to the family Primulaceae. This plant is commonly known as "Tiny Calicium" and is native to the Philippines.
Appearance
Calicium minutissimum G. Merr. is a small, creeping herb that grows up to 1-2 cm tall. The leaves are tiny, ovate, and arranged in a rosette form. The plant produces small, white, star-shaped flowers that grow from the center of the rosette. The fruit is a small capsule that contains numerous tiny seeds.
Uses
Calicium minutissimum G. Merr. has been traditionally used by the indigenous people of the Philippines for medicinal purposes. The plant is believed to have anti-inflammatory and analgesic properties and is used to treat various ailments such as headaches, stomach pains, and rheumatism. The plant is also used as a natural insect repellent by crushing the leaves and applying the juice on the skin.
In the present day, Calicium minutissimum G. Merr. is mainly grown as an ornamental plant. Its small and delicate appearance makes it an attractive addition to miniature gardens, terrariums, and rockeries. It is also commonly used in fairy gardens and bonsai arrangements.
Light Requirements:
The Calicium minutissimum G. Merr. requires low to moderate light for growth. The plant is adapted to growing under the forest canopies and can tolerate shade. However, exposure to direct sunlight for prolonged periods can damage the plant and inhibit its growth.
Temperature Requirements:
The ideal temperature range for the growth of Calicium minutissimum G. Merr. is between 18°C to 25°C (64°F to 77°F). Anything below this range can slow down the plant’s growth, and temperatures above this range can be detrimental to the plant.
Soil Requirements:
The plant prefers well-drained, moist soil rich in organic matter. The plant can grow under a wide range of soil pH, ranging from acidic to slightly alkaline. However, the plant prefers slightly acidic soil with a pH range between 6.0 to 6.5.
Cultivation Methods
The plant Calicium minutissimum G. Merr. is relatively easy to cultivate and care for, making it an ideal choice for both novice and experienced gardeners. The plant thrives in a well-draining soil mix that is rich in organic matter. It prefers bright but indirect sunlight and moderate temperatures.
It is important to note that Calicium minutissimum G. Merr. is an epiphyte, meaning that it is a plant that grows on other plants without taking nutrients from them. Therefore, it can be grown in a pot with a well-draining soil mix or mounted on a piece of bark or wood.
Watering Needs
Calicium minutissimum G. Merr. prefers to be kept moist, but not wet. Overwatering can lead to root rot and other problems. It is best to water the plant when the top inch of the soil feels dry to the touch. Water thoroughly, allowing excess water to drain away. Avoid getting water on the leaves and try to water early in the day to give the plant time to dry out before nightfall.
Fertilization
Fertilization is not necessary for Calicium minutissimum G. Merr. if it is grown with organic matter-rich soil. However, if growing in a pot, fertilizing the plant with a balanced fertilizer can help support healthy growth. Use a half-strength fertilizer solution every two weeks during the growing season.
Pruning
Pruning is not necessary for Calicium minutissimum G. Merr. However, if the plant becomes too large, it can be trimmed back to the desired size. Prune back stems just above a node or leaf to encourage branching and new growth.
Propagation of Calicium minutissimum G. Merr.
Calicium minutissimum G. Merr. is a rare and critically endangered plant species native to the Philippines. Due to its rarity, the plant is not widely cultivated and is often propagated through vegetative means.
Vegetative Propagation
The most common vegetative propagation method for Calicium minutissimum G. Merr. is through stem cuttings. Cuttings should be taken from the plant's healthy stem and should be around 5-10cm long. The cuttings are then treated with rooting hormone and planted in a well-draining soil mix. The plants should be kept moist and in a warm and humid environment until roots start to appear.
Seed Propagation
Calicium minutissimum G. Merr. can also be propagated through seed. However, seed production for this plant is limited and can be challenging due to the plant's rarity. The seeds should be collected from mature fruits and sown immediately in a well-draining soil mix. The plants should be kept moist and in a warm and humid environment until they start to grow.
Overall, propagating Calicium minutissimum G. Merr. is a challenging and delicate process that requires the right conditions and care to be successful.
Disease Management
Calicium minutissimum G. Merr. is susceptible to several fungal and bacterial diseases. The common diseases that might affect the plant include leaf spot, powdery mildew, root rot, and bacterial wilt. Leaf spot and powdery mildew are generally caused by fungal infestations, while root rot and bacterial wilt are caused by bacterial infections.
To manage leaf spot and powdery mildew, it is recommended to remove the infected leaves and dispose of them properly. Fungicides can also be applied to prevent further spread of the disease. To manage root rot and bacterial wilt, it is essential to avoid overwatering the plant and ensure that the soil is well-draining. Infected plants should be removed and destroyed immediately to prevent further spread of the disease.
Pest Management
Calicium minutissimum G. Merr. is also susceptible to pests, including spider mites, aphids, mealybugs, and whiteflies. Spider mites are tiny pests that feed on the leaves, causing discoloration and damage to the plant. Aphids, mealybugs, and whiteflies are also common pests that suck sap from the plant, leaving it weak and prone to diseases.
To manage pest infestations, it is recommended to inspect the plant regularly and remove any infested leaves or stems. Beneficial insects, such as ladybugs and lacewings, can also be introduced to the plant to control the pest population. In severe cases, insecticides can be used, but it is essential to read and follow the instructions carefully to prevent damage to the plant.
