Origin
Gesneria viridiflora (Dcne.) Kuntze ssp. sintenisii (Urban) L. Skog, also known as Sin Tenis' Gesneria, is a species of flowering plant native to the Caribbean islands of Hispaniola, specifically the Dominican Republic and Haiti.
Common Names
In addition to Sin Tenis' Gesneria, this plant is also commonly referred to as Green Gesneriad.
Appearance
Gesneria viridiflora (Dcne.) Kuntze ssp. sintenisii (Urban) L. Skog is a perennial herbaceous plant that can reach a height of up to 60 centimeters. It has large, dark green leaves that grow in rosettes at the base of the plant. The plant's flowers are tubular, measuring about 3 centimeters in diameter, and are a bright green color surrounded by dark green calyces. The plant blooms from late summer to early fall.
Uses
Gesneria viridiflora (Dcne.) Kuntze ssp. sintenisii (Urban) L. Skog is mostly used as an ornamental plant in gardens and landscaping due to its unique appearance and bright green flowers. In addition, some species in the genus Gesneria have been used in traditional medicine to treat various ailments, although there is little information available on any specific uses for this particular species.
Light Requirements
Gesneria viridiflora ssp. sintenisii requires bright but indirect light. Direct sunlight can be harmful to the plant and may cause leaf scorch. It is ideal to place the plant near a north-facing window or in an area that receives filtered light.
Temperature Requirements
Gesneria viridiflora ssp. sintenisii prefers warm temperatures between 65-75°F (18-24°C) and does not tolerate temperatures below 60°F (15°C). It is important to keep the plant away from cool drafts or sudden temperature fluctuations.
Soil Requirements
The plant prefers soil that is well-draining and rich in organic matter. A mixture of peat moss, perlite, and vermiculite or a commercial potting mix formulated for African violets can provide the appropriate soil conditions. The container should have drainage holes to prevent waterlogging and promote healthy root growth.
Cultivation of Gesneria viridiflora ssp. sintenisii
Gesneria viridiflora ssp. sintenisii is a tropical plant that is known for its shiny, green leaves and beautiful tubular flowers. It is a relatively easy plant to grow and requires moderate care to thrive.
The plant prefers to grow in a warm and humid environment, making it ideal for growing in a greenhouse or a shaded area indoors. Gesneria viridiflora ssp. sintenisii can also be grown outside in areas that have a warm and humid climate.
The plant prefers well-draining soil that is rich in organic matter. A mixture of peat moss, perlite, and vermiculite can be used to create a suitable soil mix for the plant.
Watering Needs of Gesneria viridiflora ssp. sintenisii
Gesneria viridiflora ssp. sintenisii requires consistent moisture to thrive, but overwatering can lead to root rot. It is best to water the plant when the top inch of soil feels dry to the touch.
The plant prefers to be watered with room temperature water. It is important to avoid getting water on the leaves or flowers, as this can lead to leaf spot and other fungal diseases.
Fertilization of Gesneria viridiflora ssp. sintenisii
Gesneria viridiflora ssp. sintenisii benefits from regular fertilization. A balanced, water-soluble fertilizer can be used every two to three weeks during the growing season.
It is important to follow the manufacturer's instructions when fertilizing the plant. Over-fertilization can lead to burned roots and other detrimental effects.
Pruning of Gesneria viridiflora ssp. sintenisii
Gesneria viridiflora ssp. sintenisii benefits from regular pruning to promote bushier growth and prevent leggy stems. It is best to prune the plant in the spring or early summer, just before the growing season.
Pruning should consist of removing any wilted or damaged leaves, as well as any stems that have become too long and leggy. It is also important to pinch back new growth regularly to promote bushier growth and more blooms.
Propagation of Gesneria viridiflora ssp. sintenisii
Gesneria viridiflora ssp. sintenisii can be propagated through various methods such as division, stem cuttings and seed germination.
Division
The plant can be propagated through division in spring when new growth starts. Carefully dig up the plant and separate the root clumps. Each clump should have a minimum of two to three healthy stems. Replant the divisions immediately in well-draining soil and water them well.
Stem Cuttings
This method involves taking cuttings from healthy stems during the growing season, preferably during spring or early summer. Select cuttings that have healthy leaves, and make a clean cut below the node. Apply rooting hormone to the cut end of the stem and plant in a well-draining soil mix. Keep the soil moist and place the cutting in a warm area with filtered light until roots form in two to four weeks.
Seed Germination
Seeds can be obtained from mature capsules of the plant. Sow the seeds in a seedling tray, making sure to keep the tray in a warm area with filtered light. The seeds should be barely covered with soil. Keep the soil moist and the tray covered with a plastic wrap until the seedlings emerge. Once the seedlings have developed leaves, transplant them into individual pots filled with a well-draining potting mix.
Disease and Pest Management for Gesneria viridiflora (Dcne.) Kuntze ssp. sintenisii (Urban) L. Skog
Gesneria viridiflora (Dcne.) Kuntze ssp. sintenisii (Urban) L. Skog, commonly known as the green-flowered gesneriad, is a beautiful and delicate plant that is easy to care for. However, like any other plant, it is susceptible to diseases and pests. Here are some common diseases and pests that might affect Gesneria viridiflora and ways to manage them:
Diseases
1. Leaf Spot: This is a fungal disease that causes small brown or black spots on the leaves. The spots may merge to form larger patches that can kill the leaf. To manage this disease, remove the infected leaves and avoid splashing water on the leaves when watering. Also, avoid overcrowding the plants as this can increase humidity levels and promote fungal growth.
2. Gray Mold: Gray mold is a fungal disease that causes the plants to wilt and die. It thrives in humid conditions and attacks weakened, injured, or dead tissue. To manage gray mold, remove infected plant parts, increase air circulation, and avoid watering the leaves. You can also apply fungicides to help manage the disease.
Pests
1. Spider Mites: Spider mites are tiny pests that thrive in dry and dusty conditions. They suck sap from the leaves, weakening the plant and causing leaves to yellow or drop prematurely. You can use a strong jet of water to dislodge them from the leaves or use insecticidal soap or a neem oil spray to manage them.
2. Mealybugs: Mealybugs are soft-bodied insects that suck sap from the plant, causing stunted growth, wilting, and yellowing of leaves. They also secrete a sticky substance that attracts ants and encourages the growth of sooty mold. You can use a cotton swab dipped in rubbing alcohol to remove them from the plant or use insecticidal soap or neem oil to manage them.
By practicing good cultural practices, such as providing adequate air circulation, proper watering, and adequate lighting, you can help keep your Gesneria viridiflora plant healthy and minimize the risk of pests and diseases.
