How to Grow Begonia haageana

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Begonia haageana

flower

Begonia haageana, commonly known as Haageana Begonia or Elephant Ear Begonia, is a semi-tuberous begonia prized for its striking asymmetrical leaves with metallic red undersides and serrated margins. It produces delicate pink or red flowers and grows as an ornamental houseplant or shade garden specimen. This begonia requires consistent humidity and protection from extreme conditions but rewards careful growers with dramatic foliage.

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Example Begonia haageana timeline · Pittsburgh, PA (Zone 6b)

Plant Begonia haageana
Around Apr 17

Near Pittsburgh's average last spring frost.
Tend & protect
Late spring–summer

Watering, feeding, and pest-watch reminders.
First Begonia haageana blooms
Around Jul 16

≈ 90 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Begonia haageana dates for your own zip code.

Growing Conditions

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Sun: Bright, indirect light; 3-4 hours of filtered sunlight daily. Avoid direct afternoon sun, which scorches leaves.

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Water: Keep soil consistently moist but never waterlogged. Water when the top inch of soil feels dry. High humidity (50-70%) is essential; mist regularly or use a pebble tray. Reduce watering in winter dormancy.

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Spacing: 12 inches

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Days to maturity: 90-120 days to established growth

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Planting depth: Plant tubers 1 inch deep; transplants at same depth as original container

Soil

Type: Well-draining, lightweight soil rich in organic matter (peat moss or coco coir based)

pH: 6.0-6.5

Amendments:

Peat moss or coco coir Perlite or orchid bark for drainage Compost or aged bark Avoid heavy clay soils

Growing Zones

Find your zone →

Thrives in zones 10-11; elsewhere grown as a tender houseplant or annual in frost-prone regions

10a 10b 11a 11b

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Growth Stages

Tuber/Dormancy

3-4 months (winter)

Resting phase with minimal visible growth; tubers stored dry or in light substrate

Store in cool (50-60°F), dry location. Check monthly for sprouting. Begin watering when shoots emerge.

Sprouting & Seedling

3-4 weeks

First leaves emerge from tuber; delicate shoots with small leaves unfurling

Maintain 60-70°F temperature. Increase watering gradually. Maintain high humidity. Provide bright, filtered light.

Vegetative Growth

6-8 weeks

Rapid leaf development; characteristic asymmetrical, serrated leaves with red undersides expanding; plant fills out bushy form

Water consistently; fertilize every 2-3 weeks with diluted balanced fertilizer (10-10-10). Pinch growing tips to encourage branching. Maintain 60-75°F and high humidity.

Flowering

6-12 weeks

Delicate pink, red, or coral flowers emerge on branching stems above foliage

Continue consistent watering and humidity. Fertilize with slightly higher phosphorus (5-10-10) to encourage blooms. Remove spent flowers to extend blooming.

Maturity & Decline (Senescence)

6-8 weeks before dormancy

Peak leaf and flower production; gradual slowing as day length decreases (in seasonal climates)

In autumn/winter, gradually reduce watering and fertilizer. Allow plant to enter dormancy. Cut back foliage once stems become woody or die back naturally.

Companion Planting

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Plant with:

Ferns (Boston fern, maidenhair fern) Peperomia Philodendron Anthurium African violet Impatiens Caladium

Avoid planting near:

Strong-growing vines that shade heavily Drought-tolerant plants requiring less frequent watering Succulents (conflicting water needs)

Common Pests

Increase humidity; mist foliage regularly. Spray with water or insecticidal soap. Isolate affected plants.
Remove with alcohol-dipped cotton swab. Apply horticultural oil or neem oil spray every 7-10 days.
Allow soil surface to dry between waterings. Use yellow sticky traps. Apply Bti (Bacillus thuringiensis israelensis) to soil.
Improve air circulation. Avoid wetting foliage. Apply sulfur dust or potassium bicarbonate spray; severe cases use fungicide.
Prevent via well-draining soil and proper watering. Remove affected plant; repot in fresh soil if viable. Improve drainage.

Uses

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Indoor Houseplant Foliage

Ornamental

Begonia haageana's striking asymmetrical leaves with dramatic red undersides and metallic sheen make it a stunning decorative houseplant for tabletops, shelves, and shade gardens. Its cascading form and elegant flowers add visual interest to any interior space. [source]

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Shade Garden Specimen

Ornamental

In warm climates (zones 10-11), Begonia haageana thrives in shaded garden beds and under trees, providing year-round color and texture where many plants fail. Its tropical appearance brings exotic flair to shade landscapes. [source]

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Edible Flowers

Culinary

Begonia flowers are edible with a slightly tart, lemony flavor and can be used as a garnish for salads, desserts, and cocktails. Both petals and leaves contain oxalic acid in small amounts, making them safe in moderation. [source]

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Traditional Herbal Use

Medicinal

In some traditional medicine systems, begonia leaves have been used to treat minor wounds, inflammation, and digestive complaints. Modern scientific evidence is limited, but the plant's anti-inflammatory compounds warrant further research. [source]

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Pressed Flowers & Leaf Crafts

Craft

The striking leaves and delicate flowers of Begonia haageana are ideal for pressing and preserving for botanical crafts, scrapbooking, resin art, and herbarium projects. Their unique undersides make them particularly photogenic. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Begonia haageana is grown for ornamental foliage and flowers, not harvest. Deadhead spent flowers to encourage continued blooming. Pinch or prune stems to maintain shape and bushiness. Cut back woody stems in late winter to promote fresh growth. Propagate from stem cuttings (3-4 inches) in spring/summer; root in moist soil under humidity dome in 2-4 weeks.

Fun Facts

🌱 Begonia haageana was named after the Haage seed company in Germany and is sometimes called 'Elephant Ear Begonia' due to its large, ear-like asymmetrical leaves with velvety red undersides.
🌱 Unlike many begonias, Begonia haageana is semi-tuberous, meaning it has a thickened underground storage organ that allows it to survive dormancy periods, making it somewhat more resilient than wax begonias.
🌱 The red pigmentation on the undersides of begonia leaves (anthocyanins) is thought to help the plant absorb and utilize red-wavelength light more efficiently in low-light conditions, giving it a competitive advantage in shaded forest understories.

Gardening Terms

New to gardening? Learn about terms used in this guide:

Deadhead pH

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