Begonia griffithiana – Flowering plants
Begonia griffithiana is a rare ornamental, erect or cascading, an herb that grows up to 20-40 inches tall. It has oblong-lance-shaped leaves, basifixed, base shallowly heart-shaped, strongly asymmetric, upper surface green, sparsely hairy to hairless, underside green, margin minutely toothed or with small teeth at ends of the main veins only, tip tapering. The stems are slightly woody, stout at the base. The flowers are borne in numerous-flowered cymes in leaf-axils or at branch-ends, carried on flower-cluster-stalk hairless, branching 2-3 times, primary 3-5 cm, secondary 2-4 cm, tertiary 1-1.5 cm, with 2-4 female and 4-8 male flowers. The capsule is oblong-ellipsoid, red, wing extending along the flower-stalk slightly, unequal, rounded triangle.
Species: B. griffithiana
Scientific Name: Begonia griffithiana
Synonyms: Begonia episcopalis, Mezierea griffithiana
Common Name: Griffith’s Begonia
How to grow and care for Begonia griffithiana
It grows well in bright indirect sunlight originating from a south, east, or west window. It also thrives under fluorescent lights. Avoid direct sun which can scorch the leaves.
It requires a well-drained, peat moss-based soil, such as African violet potting mix.
Water your plant regularly during the growing season and always keep the soil evenly moist but not soggy. You can allow the top 1 inch of soil to dry out between each watering. During the winter months, reduce watering. Overwatering will cause leaves to turn yellow.
It prefers an average room temperature of 65 – 75 degrees Fahrenheit / 18 – 24 degrees Celsius. Begonia is not cold-tolerant and can be harmed by temperatures below 50 degrees Fahrenheit / 13 degrees Celsius.
Feed every two weeks spring through fall with a balanced liquid fertilizer diluted by half. Do not feed your plant during the dormant period.
It can be easily propagated by stem cuttings. Take stem cuttings in spring and root in fresh potting mix. Keep the soil lightly moist. Cover the whole container and plant with a plastic bag or cloche to hold in humidity. Begonia seeds are slow to germinate. You can sow seeds in the spring, but it can take several months to grow.
Pests and Diseases
Begonia griffithiana has no serious pest or disease problems. It is susceptible to attacks from spider mites, mealybugs, and aphids.