Overview
Pelargonium reliquifolium N.E.Br. is a rare and unusual species of Pelargonium that belongs to the Geraniaceae family. This plant is a native of South Africa and is often known as the "Relic Pelargonium" due to its unique and ancient appearance.
Description
The plant has a shrubby and clump-forming growth habit, with woody stems that usually branch out from the base. The leaves are succulent and glossy, with a deep green color and a waxy texture. Unlike most Pelargoniums, this species has deeply divided foliage, with two wing-shaped leaflets that encircle the stem and are fused at the base. The flowers are small, pale pink, and appear in loose umbels of up to ten blooms at the end of the stems.
Common Names
Pelargonium reliquifolium is also commonly known by other names like the "Turtle-shell Pelargonium" and "Split-leaf Geranium."
Uses
Pelargonium reliquifolium is mainly grown as an ornamental plant in gardens, containers, and rockeries. It is popular among collectors of rare and unusual Pelargonium species due to its unique foliage and overall appearance. In traditional medicine, some parts of this plant are believed to have medicinal value and are used to treat ailments such as digestive problems and skin conditions.
Light Requirements
Pelargonium reliquifolium N.E.Br. requires bright light to grow healthily. It grows best in a location with direct sunlight exposure for several hours a day. However, direct sunlight exposure during the hottest part of the day may cause the leaves to burn. Therefore, it is ideal to place the plant in a location that receives filtered sunlight during the hottest part of the day.
Temperature Requirements
The typical growing temperature range for Pelargonium reliquifolium N.E.Br. is between 15°C to 25°C. The plant is intolerant of extreme cold and extreme heat. Therefore, it is recommended to protect the plant from temperatures below 10°C and temperatures above 30°C. A consistent temperature range helps maintain the proper plant growth rate.
Soil Requirements
Pelargonium reliquifolium N.E.Br. prefers well-drained soil with a neutral pH of around 7. It does not do well in waterlogged soil, and its roots can quickly rot in such conditions. When planting the plant, ensure the soil is light and porous to allow good air circulation. The plant also thrives in soil with good fertility levels. Adding compost or organic fertilizer will provide the necessary nutrients for the plant's healthy growth.
Cultivation
Pelargonium reliquifolium N.E.Br. thrives well in sandy soils and can grow in both full sun and partial shade. It's best to plant them in a pot with well-draining soil or garden bed with a mixture of sand, loam, and compost. The plant requires good airflow, so make sure to space them approximately 30cm apart from each other.
Watering Needs
Watering is essential for this plant to grow healthy and strong. Water the plant regularly but avoid overwatering, which can cause root rot. You can tell if the plant needs watering by checking the top inch of soil, and if it feels dry to the touch, then it's time to water. Pelargonium reliquifolium N.E.Br. prefers to be watered deeply once a week.
Fertilization
Fertilize the plant with a balanced fertilizer every four weeks during the growing season to encourage healthy growth. Pelargonium reliquifolium N.E.Br. requires a balanced fertilizer with equal parts nitrogen, potassium, and phosphorus. Over-fertilization can lead to the development of weak and spindly growth, so ensure that you follow the manufacturer's instructions on the fertilizer pack.
Pruning
Regular pruning of Pelargonium reliquifolium N.E.Br. helps to maintain its shape and size. You can pinch out the tips of the plant to promote bushier growth and remove any lanky shoots. You can also cut back old or damaged growth to encourage new growth. Late winter is the best time to prune the plant as it enters its dormant period.
Propagation of Pelargonium reliquifolium N.E.Br.
Pelargonium reliquifolium N.E.Br can be propagated through various methods. These methods include:
Seed Propagation
Seeds are the easiest and most common way to propagate Pelargonium reliquifolium. The seeds must be collected when the pods are dry and brown. Once collected, the seeds can be sown in a well-drained soil mixture, and kept moist and warm until germination. Germination can take up to 4 weeks. Once the seedlings are strong and healthy, they can be transplanted into individual pots or directly into the garden.
Cuttings
Another way to propagate this plant is through stem cuttings. Choose a healthy stem with no flowers and cut a section of about 5 to 7 cm in length. Remove any leaves from the bottom half of the cutting and dip the cut end in rooting hormone to enhance rooting. Plant the cutting in a potting mixture of sand and peat, and water it well. Keep the potting mixture moist and place the pot in a warm, bright spot. The cuttings should start to root within 3 to 4 weeks.
Division
Pelargonium reliquifolium can also be propagated through division. This method is suitable for mature plants that have grown too large. Carefully remove the plant from its pot or soil and gently separate the root ball into two or more sections. Replant each section in its own pot or directly into the garden.
Disease and Pest Management for Pelargonium reliquifolium N.E.Br.
Pelargonium reliquifolium N.E.Br. is a hardy plant that is relatively resistant to many pests and diseases. However, there are still some conditions that could affect the plant's health. Here are some of the most common diseases and pests that might affect the plant and ways to manage them:
Diseases
1. Botrytis blight - This condition is caused by a fungus that affects the leaves and stems of the plant. It typically occurs in humid conditions. To manage botrytis blight, keep the plant dry and remove any affected leaves or stems immediately. Also, try to improve air circulation around the plant.
2. Root rot - Root rot is caused by a fungal infection that affects the roots of the plant. One of the main causes of root rot is overwatering. To prevent root rot, make sure the plant is planted in well-draining soil and that you allow the soil to dry out slightly between waterings. If you notice any signs of root rot, remove any affected roots and replant the plant in fresh soil.
Pests
1. Aphids - These small, pear-shaped insects can suck the sap from the leaves and stems of the plant, causing them to wither and die. To manage aphids, use a mild insecticide spray or try washing the plant with a strong stream of water to dislodge the insects.
2. Spider mites - These tiny arachnids can cause leaves to yellow and drop off the plant. They are particularly common in dry conditions. To manage spider mites, use a miticide spray or increase the humidity around the plant.
3. Whiteflies - Whiteflies are small insects that are often found on the undersides of leaves. They cause damage by sucking sap from the plant. To manage whiteflies, use an insecticide spray or try washing the plant with a strong stream of water to dislodge the insects.
Overall, the best way to prevent pests and diseases on Pelargonium reliquifolium N.E.Br. is to provide the plant with good growing conditions. This includes providing proper sunlight, water, and nutrients, and avoiding overwatering or overhead watering.
