There are around 100 species in this genus that is native to tropical Africa and Asia. The perennial shrubs and subshrubs have leaves that are oval to lance-shaped and membrane-like. Flowers are tubular in shape and may be either red, pink, yellow, or white, depending on species. Indoors, grow in bright light with moderate water. Outside, plant in full sun, with shelter from direct overhead midday sun. Soil should be fertile, but well drained.
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Characteristics
Cultivar: n/aFamily: Rubiaceae
Size: Height: 4 ft. to 5 ft.
Width: 4 ft. to 5 ft.
Plant Category: perennials, shrubs,
Plant Characteristics:
Foliage Characteristics: evergreen,
Flower Characteristics: single, unusual,
Flower Color: oranges, pinks, whites, yellows,
Tolerances: heat & humidity,
Requirements
Bloomtime Range: Late Spring to Mid Summer
USDA Hardiness Zone: 10 to 11
AHS Heat Zone: Not defined for this plant
Light Range: Dappled to Sun
pH Range: 5 to 7
Soil Range: Sandy Loam to Potting Soil
Water Range: Normal to Moist
Plant Care
Fertilizing
How-to : Fertilizing Houseplants Houseplants may be fertilized with: 1. water-soluble, quick release fertilizers; 2. temperature controlled slow-release fertilizers; 3. or organic fertilizers such as fish emulsion. Water soluble fertilizers are used every two weeks or per label instructions. Controlled, slow-release fertilizers are carefully worked into the soil usually only once during the growing season or per label directions. For organic fertilizers, such as fish emulsion, follow label directions. Allow houseplants to 'rest' during the winter months; stop fertilizing in late October and resume feeding in late February.
Light
Conditions : Dappled Light Dappled Light refers to a dappled pattern of light created on the ground, as cast by light passing through high tree branches. This is the middle ground, not considered shady, but not sunny either. Dappled remains constant throughout the day.
Watering
Conditions : Moist and Well Drained Moist and well drained means exactly what it sounds like. Soil is moist without being soggy because the texture of the soil allows excess moisture to drain away. Most plants like about 1 inch of water per week. Amending your soil with compost will help improve texture and water holding or draining capacity. A 3 inch layer of mulch will help to maintain soil moisture and studies have shown that mulched plants grow faster than non-mulched plants.
Planting
Problems