Characteristics and Types of African Violets Explained
African violets prefer a warm, humid, well-ventilated, semi-shaded environment; they dislike high temperatures and fear strong light. The suitable growing temperature is 18-24°C; in winter the temperature must not drop below 10°C, and in summer it must not exceed 30°C, with relative humidity of 40%-79%. The plant is short and forms a rosette shape; the leaves are thick and fleshy like velvet; the flowering period is long, and the flower color is mainly blue-purple, which is how the common name "violet" came about. They are easy to propagate and are a popular indoor potted ornamental plant worldwide. Through hybridization, their horticultural varieties have continued to increase, now numbering more than 2,000 varieties. Besides the purple series, the flower colors are also very rich in other hues. They are usually divided into four categories according to plant size and growth habit:
① Standard type. The plant spread is 25-60 cm; it is a multi-flower type with a long flowering period and flowers easily.
② Miniature type. It is the most popular variety, with a plant spread of 10-15 cm, suitable for mini cultivation.
③ Medium type. The plant spread is 15-20 cm.
④ Trailing type. It has long branches and a creeping growth habit, and can be grown as a hanging plant for ornamental display.