King Begonia
Begoniaceae HERB INDOOR Placement

King Begonia

Begonia rex

Identified By Unknown Guest

Begonia rex, commonly known as the king begonia, is a species of flowering plant in the family Begoniaceae. It is native to tropical Asia and is widely cultivated for its striking, highly patterned, and colorful foliage.

Also known as: Rex Begonia Painted-Leaf Begonia

Safety Warnings

Toxic to Pets: Contains insoluble calcium oxalates which cause irritation, intense burning, and drooling in pets if ingested.
Toxic to Humans: Contains calcium oxalate crystals that can cause mouth irritation and stomach upset if ingested.

Growth & Dimensions

Height 20 - 45 cm
Width 30 - 45 cm
Growth Rate Moderate
Care Level Moderate
Lifespan Perennial

Ideal Environment

Temperature 15°C - 24°C
Sunlight Hours 3 - 6 hrs/day
Sun Exposure Partial shade
Soil pH 5.5 - 6.5
Watering Interval 5 - 10 days
Humidity 50.00% - 80.00%
USDA Zone 10 - 12

Tropical and Subtropical Indoor Environments

Climate: Warm, humid environments with indirect sunlight.

Soils: Loam Peat Potting Mix
Annual Rainfall: 1000 - 2000 mm

Native Regions

Himalayas
Southeast Asia (ID – Asia)
India

Care Guide

Watering

Allow the top 2-3 cm of soil to dry out between waterings. Water thoroughly, but ensure the pot has good drainage to prevent root rot. Avoid getting water directly on the leaves.

Sunlight

Provide bright, indirect sunlight. Direct sunlight can scorch the delicate leaves, while too little light will cause leaf colors to fade.

Soil and Fertilizer

Use a well-draining, peat-based potting mix. Feed with a balanced, diluted liquid fertilizer every 4 weeks during the spring and summer growing season.

Pruning

Regularly remove dead or yellowing leaves from the base of the plant to maintain appearance and prevent fungal issues.

Propagation Methods

Cutting

Take a healthy leaf with its stem, make slashes along the major veins on the underside, and place it flat on moist propagation medium. New plantlets will form at the cuts.

Division

Carefully separate the rhizomes during repotting, ensuring each section has at least one growth point and roots.

Common Diseases & Pests

Powdery Mildew

Fungal
Symptoms:

White, powdery spots on leaves and stems, leading to leaf curling and distortion.

Treatment:

Apply a fungicide or a mixture of water, baking soda, and mild soap. Improve air circulation.

Prevention:

Avoid overhead watering, ensure good spacing between plants, and provide adequate air movement.

Root Rot

Fungal
Symptoms:

Wilting, yellowing leaves, mushy stems, and a foul odor from the soil.

Treatment:

Remove the plant from the pot, trim away rotting roots, and repot in fresh, well-draining soil.

Prevention:

Do not overwater and ensure pots have proper drainage holes.

Properties & Benefits

Uses & Health Benefits

Air Purification

Helps improve indoor air quality by filtering out certain airborne toxins.

Precautions: Not for consumption; toxic if ingested.

Key Nutrients / Compounds

Ornamental Foliage Compounds rich in Vibrant anthocyanins and chlorophyll patterns

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