Description

Begonia- Rex Crackling Rosie is a rhizomatous Rex Begonia prized for bold, iridescent foliage. The large, asymmetrical leaves unfurl in rich burgundy tones streaked and “crackled” with hot pink and silver, often showing a light metallic sheen that changes with the angle of light. Compact and clump-forming, it makes a refined statement plant for desks, shelves, and shaded patio containers. Color is most vivid in bright, indirect light with moderate to high humidity. While small winter blooms may appear, the true appeal is its luxuriant, painterly foliage.

Suggested Uses

• Feature as a focal foliage plant in modern indoor containers
• Combine in shaded mixed planters with ferns and coleus for texture contrast
• Brighten low-light nooks with colorful leaves where flowers struggle
• Accent plant for shaded patios, porches, and covered balconies in warm climates
• Group with other humidity-loving houseplants for a lush, botanical display
• Use foliage sparingly in small floral arrangements for a dramatic color pop

Plant Details

Botanical Name

Begonia- Rex Crackling Rosie

Common Name

Begonia- Rex (Rex Begonia)

Size & Growth

Compact, 10–16 in tall x 12–18 in wide; rhizomatous, clump-forming habit.

Hardiness Zones

USDA 10–11 as a perennial; grow as a houseplant or warm-season annual in cooler zones.

Foliage Type

Ornamental, evergreen foliage; large asymmetrical leaves, deep burgundy with pink/silver “crackle” and light metallic sheen.

Bloom Time

Winter to early spring; small pinkish blooms, not the main feature.

Growth Rate

Moderate; faster with warmth, bright-filtered light, and steady humidity.

Light Requirements

Bright, indirect light; gentle morning sun is fine; avoid harsh midday sun to prevent leaf scorch.

Attracts Pollinators

Low. Flowers are modest; plant is primarily valued for foliage.

Indoor Friendly

Excellent houseplant; thrives with stable temperatures and humidity.

Container Friendly

Ideal for containers; prefers shallow, wide pots with ample drainage.

Deer Resistant

Generally deer-resistant; foliage texture/sap makes it less palatable.

Pet Warning

Toxic to cats and dogs if ingested; can cause oral irritation, drooling, and vomiting. Keep out of reach.

Fragrant

No; grown for foliage rather than fragrance.

Cut Flower

Not a traditional cut flower; foliage stems can accent small arrangements (short-lived).

Grows Well With

Caladium, Coleus, Ferns (e.g., Maidenhair, Bird’s Nest), Fittonia, Hypoestes, Peperomia, Pilea.

Care Tips

Planting Instructions

Pot at the same depth as in the nursery pot; keep crown at soil surface and lay rhizomes horizontally. Use a container with drainage; space 10–12 in apart in beds.

Soil Moisture

Keep lightly and consistently moist. Water when the top 0.5–1 in of mix feels dry. Never let sit in water; avoid wetting leaves.

Soil Type

Light, airy, well-drained mix: 40% peat/coir, 30% perlite, 20% fine bark, 10% compost. Slightly acidic pH 5.5–6.5.

Humidity

Best at 50–60%+. Use a pebble tray or humidifier; avoid direct misting to reduce fungal spots; ensure gentle air movement.

Pruning Instructions

Remove yellowed or tattered leaves at the base; pinch tips to encourage branching. Sterilize tools to prevent disease spread.

Winter Care

Protect from cold; keep 65–75°F (18–24°C), never below 55°F (13°C). Reduce watering and hold fertilizer until days lengthen.

Planting Depth

Set crown level with soil; rhizome should be at or just barely covered by the mix to prevent rot.

Fertilization

Feed lightly spring–summer every 4–6 weeks with a balanced liquid fertilizer at 1/4–1/2 strength. Flush salts periodically; do not fertilize dry soil.

Special Care

Avoid overpotting; rotate for even growth; keep from drafts. Monitor for mealybugs/spider mites and powdery mildew—treat early with insecticidal soap or neem.

Water quality matters: if leaf edges crisp despite good humidity, try rainwater or filtered water to reduce mineral build-up.