Begonia Rex ‘Cosmic Purple’: Care Guide and Features
The Begonia Rex ‘Cosmic Purple’ is a striking variety of Rex Begonia, celebrated for its vivid foliage. The leaves showcase mesmerizing shades of deep purple, metallic silver, and hints of green, making it a standout plant for indoor collections or shaded garden areas. While its foliage takes center stage, this Begonia also occasionally produces small, delicate flowers.
Key Characteristics
Scientific Name: Begonia rex ‘Cosmic Purple’
Common Name: Cosmic Purple Rex Begonia
Plant Type: Perennial (typically grown as a houseplant)
Height: 12–18 inches (30–45 cm)
Spread: 12–24 inches (30–60 cm)
Light Requirements: Bright, indirect light
Soil Requirements: Well-draining, nutrient-rich soil
Temperature: Warm (60°F–75°F / 15°C–24°C)
Humidity: High (50–70%)
Care Instructions
1. Light
Thrives in bright, indirect light.
Avoid direct sunlight, which can scorch the leaves and fade their vibrant colors.
Indoors, place near an east or north-facing window or use grow lights for optimal growth.
2. Soil
Use a light, well-draining soil mix, such as a blend formulated for begonias or African violets.
Adding peat moss, perlite, or vermiculite helps retain moisture while ensuring proper aeration.
3. Watering
Water when the top inch of soil feels dry to the touch.
Avoid overwatering, as Rex Begonias are susceptible to root rot.
Use room-temperature water and avoid getting water directly on the leaves, which can cause spotting.
4. Temperature and Humidity
Temperature: Keep in a warm environment between 60°F–75°F (15°C–24°C). Avoid cold drafts or temperatures below 50°F (10°C).
Humidity: High humidity is crucial for Rex Begonias. Increase humidity by:
Placing a pebble tray with water under the pot.
Using a humidifier.
Grouping plants together to create a humid microclimate.
5. Fertilizer
Feed with a balanced liquid houseplant fertilizer every 4–6 weeks during the growing season (spring and summer).
Reduce feeding in the fall and winter when growth slows.
6. Pruning and Grooming
Remove yellowing or damaged leaves to keep the plant healthy and tidy.
Trim leggy stems to encourage bushier growth.
Propagation
