Overview
Pelargonium tenellum (Andrews) G.Don, also known as the delicately scented pelargonium or small scented-leaf pelargonium, is a herbaceous perennial plant belonging to the family Geraniaceae. It is native to the Cape Province of South Africa, particularly in the mountainous regions of the Western Cape.
Description
Pelargonium tenellum is a low-growing plant that typically reaches a height of about 15-30 cm. It has a spreading habit and produces numerous branches from the base. The stems are thin and wiry, and the leaves are small, rounded, and deeply divided. The foliage is evergreen and highly aromatic, exuding a lemony fragrance when touched or disturbed. The plant blooms from early summer to autumn, producing beautiful pink, white, or lavender flowers in dense clusters on thin stalks. The flowers are small and delicately scented.
Uses
The unique fragrance of Pelargonium tenellum makes it a popular choice for gardeners who want to add a touch of lemony scent to their gardens. It is often grown as a border or edging plant in rock gardens, herb gardens, or mixed borders. The plant is also used in traditional medicine to treat various ailments, including coughs, colds, and sore throats. The essential oil extracted from the leaves is used in perfumery and aromatherapy due to its uplifting and relaxing properties.
Cultivation
Pelargonium tenellum prefers a well-drained soil and a sunny or partially shaded location. It can tolerate a wide range of soil types and can withstand periods of drought. Propagation is usually done through stem cuttings or seed. The plant is generally hardy and requires only minimal care, making it an ideal choice for novice gardeners. It is generally pest and disease-free.
Light Requirements
Pelargonium tenellum is a sun-loving plant that requires plenty of bright light to thrive. This plant needs to be placed in an area that receives at least 6 hours of sunlight per day. If grown indoors, it should be placed near a south-facing window or in a room that receives the most sunlight.
Temperature Requirements
This plant is native to South Africa and is adapted to warm temperatures. It prefers temperatures between 65 to 75°F during the day and 55 to 65°F at night. Temperatures below 50°F can damage the plant, so it should be protected from cold drafts and frost.
Soil Requirements
Pelargonium tenellum grows best in well-draining soil that is rich in organic matter. It prefers slightly acidic to neutral soil with a pH between 6.0 and 7.0. This plant can tolerate some drought, but it should be watered when the top inch of soil feels dry to the touch. It is important not to overwater the plant as it can lead to root rot.
Cultivation Methods
Pelargonium tenellum is a beautiful plant that requires proper care to thrive. It grows best in well-drained soils, and it's advisable to mix the soil with organic matter or peat moss. The plant also needs adequate sunlight, and it thrives in mild temperatures of between 60 to 70 degrees Fahrenheit. The use of a greenhouse or a warm room is recommended for colder climates.
Watering Needs
The watering needs of Pelargonium tenellum will depend on the prevailing conditions. The plant needs consistent watering, but it should not be overwatered. Therefore, it's important to check the soil moisture and water when necessary. During the summer months, the plant requires more water than in the winter, and it's essential to water the plant early in the day to allow proper absorption.
Fertilization
Like most plants, Pelargonium tenellum requires regular fertilization to ensure proper growth. The plants typically respond well to balanced fertilizers, and it's advisable to feed them once every two weeks during the growth season. It's important to follow the manufacturer's instructions when applying fertilizer to avoid overfeeding or underfeeding the plant.
Pruning
Pruning is an essential aspect of caring for Pelargonium tenellum. The plant requires regular pruning to remove dead or diseased plant parts and encourage new growth. Pruning should be done during the winter months, and it's advisable to use sharp and sterile tools to avoid damaging the plant. Pinching off the tips of the growth shoots will encourage bushier growth, and bushier plants lead to a more attractive display of flowers.
Propagation of Pelargonium tenellum (Andrews) G.Don
Pelargonium tenellum (Andrews) G.Don, commonly known as the small-flowered Pelargonium, is a plant that is native to South Africa. It is a perennial plant that grows up to 30 centimeters in height and has delicate pink flowers. Propagation of this plant is fairly easy and can be done through several methods.
Seed Propagation
The most common method of propagating Pelargonium tenellum is through seed propagation. The seeds should be sown in the spring season when the temperature is around 20°C. The seeds should be planted in well-draining soil in a pot. They should be placed in a bright area but should not be exposed to direct sunlight.
The seeds will usually germinate within 3 to 4 weeks. After 5-6 weeks, the seedlings can be transplanted to a larger pot. At this stage, make sure the potting soil has enough organic matter and is well-drained. Pelargonium tenellum can also be propagated through leaf cuttings.
Leaf Cutting Propagation
The leaf should be removed gently from an adult plant. Take a sharp, sterilized pair of scissors and cut off a large healthy leaf, making sure that there is also a small section of the stem attached to the leaf. The stem should be around 5-6 centimeters in length.
The leaf should then be placed in well-draining potting soil and moistened. Make sure to cover the pot with a plastic bag or a plastic wrap. Keep the pot in a bright area but avoid direct sunlight. After 3-4 weeks, new growth should appear from the stem. Once the new plant has started to grow, it can be transplanted to a pot.
Cutting Propagation
Pelargonium tenellum can also be propagated through cutting propagation. This method involves taking a cutting from an adult plant. Cuttings should be taken during the spring or summer season. The cutting should be around 10 centimeters in length and should include at least two full leaves. Remove any flowers or buds from the cutting.
Dip the stem into a rooting hormone powder and then place the cutting in well-draining potting soil. The pot should be covered with a plastic bag or wrap and should be placed in a bright area but not in direct sunlight. After 2-3 weeks, the cutting should start to grow. Once the new plant has started to grow, it can be transplanted to a larger pot.
Overall, Pelargonium tenellum can be propagated easily through seed, leaf cutting, or cutting propagation. With proper care and attention, the new plants will thrive and grow into beautiful blooming specimens.
Disease and Pest Management for Pelargonium tenellum
Pelargonium tenellum, also known as the small geranium, is susceptible to a variety of diseases and pests that can damage or kill the plant. However, proper disease and pest management practices can help keep the plant healthy and thriving. Here are some common diseases and pests that affect Pelargonium tenellum and ways to manage them:
Diseases
Bacterial blight: This disease is caused by the bacterium Xanthomonas campestris pv. pelargonii, which manifests through leaf spots and wilting. To manage bacterial blight, remove and destroy infected plant debris and use copper-based fungicides.
Leaf spot: Leaf spot is caused by fungi such as Botrytis cinereal and manifests through the formation of brown or black spots on leaves. The disease spreads in damp environments, so proper ventilation and reducing watering can limit its spread. Use copper-based fungicides to manage severe cases.
Rhizoctonia root rot: This fungal disease primarily affects the roots and causes them to rot and decay. To manage this disease, ensure the soil is well-draining and avoid overwatering.
Pests
Aphids: Aphids are small insects that suck the sap from the plant, causing yellowing and distortion of leaves. To control aphids, use insecticidal soap or neem oil.
Whiteflies: These small insects also suck the plant sap and secrete honeydew that attracts ants. To manage whiteflies, use sticky traps or insecticidal soap.
Spider mites: Spider mites are tiny pests that feed on the undersides of leaves and cause webbing. To control spider mites, use a forceful stream of water to dislodge them or use insecticidal soap.
By adopting good disease and pest management practices, Pelargonium tenellum can be protected from common ailments and thrive in favorable conditions.
