The stunning indoor plant you need, and it's not an orchid or begonia

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© mikroman6

Gloxinia: Origin and Characteristics 

Native to the tropical regions of Brazil, gloxinia thrives in warm, humid conditions. It grows from an underground tuber that stores energy, supporting its lush foliage and large blossoms. The plant’s leaves can grow up to 4 inches and have a soft, textured appearance.

Though often compared to the African violet, gloxinia stands out for its variety of floral colors. The flowers may be solid or marbled, with striking white edges, and can last up to eight weeks in bloom.

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© Elizabeth Fernandez

Light and Temperature Needs 

Gloxinia loves bright but indirect sunlight, making it ideal for indoor spaces near east- or west-facing windows. Direct sunlight can damage its delicate leaves.

Temperature control is key: the ideal range is 65–75°F during the day, and 60–64°F at night to prolong blooming. Keep the plant away from drafts, air conditioning vents, and heaters to avoid stress, which may cause red spots on the leaves.

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© DEA / G. CIGOLINI

How often should you water it? 

Water about once a week, keeping the substrate lightly moist but never soggy. Use lukewarm water to avoid shocking the roots, and avoid splashing water on the leaves or flowers.

The best method? Capillary watering. Place the pot on a shallow dish with water and let the soil absorb what it needs from the bottom. After 15–20 minutes, or once the topsoil feels damp, remove the pot. For added humidity, place a container of water nearby or use a humidity tray.

Adjust your watering frequency depending on the season, more during active growth and flowering, less during dormancy.

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© DEA / G. NEGRI

The best substrate for gloxinia 

Like its cousin, the African violet, gloxinia prefers a well-draining mix. A blend of peat, perlite, and vermiculite is the most effective. The ideal pH is slightly acidic, between 6.0 and 6.5, to help the plant absorb nutrients effectively.

Make sure your pot has drainage holes to prevent water buildup, which can lead to tuber rot. It’s a good idea to refresh the substrate after the blooming season or every two years.

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© DEA / G. CIGOLINI

Should you fertilize it? 

Yes, but wisely. During the flowering and growth periods, feed your gloxinia with a phosphorus-rich liquid fertilizer every 10 to 14 days. Dilute it to half the recommended strength. Once the plant enters dormancy, reduce feeding to once a month, and stop altogether in fall and winter.

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© Floris Leeuwenberg

What is the bloom like? 

The showstopper of the gloxinia is, of course, its velvety, bell-shaped flowers. Each bloom can last up to 8 weeks with proper care. To encourage more blooms, remove spent flowers by cutting just below the base of the flower stem.

Dead or damaged leaves should also be removed to keep the plant healthy and promote new growth. With the right conditions, a second bloom may even occur during its rest period.

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© Karen Tweedy-Holmes

Pruning and Dormancy 

Gloxinia doesn't need regular pruning, but once the flowers wilt, reduce watering and trim back the spent blooms. At this stage, you have two options:

• Leave the tuber in the pot and allow it to rest.
• Remove and clean the tuber, storing it in a cool, dry place if you plan to divide and replant in spring.
• If stored, replant the tuber in fresh soil once temperatures warm up.

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© H. Armstrong Roberts/ClassicStoc

Propagation 

There are two main ways to propagate gloxinia:

1. Leaf cuttings: Cut a 2 cm petiole (the small stem connecting the leaf to the plant) and place it in moist soil. Keep it in indirect light at 68 to 72°F. In about 3 to 4 weeks, it will develop roots and new growth.
2. Tuber division: After the dormant period, divide the tubers, separating any new offsets, and plant them in individual pots. It’s an easy and effective way to multiply your plant collection.

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© wakila

Pests and Problems 

Gloxinia is delicate and can attract aphids, mites, and thrips, especially in warm, dry air. Inspect the leaves and flowers frequently. At the first sign of pests, treat the plant with potassium soap or neem oil.

Avoid getting the foliage wet, as this can lead to fungal diseases such as powdery mildew. If you notice black spots at the base, it’s likely from overwatering. Adjust your watering routine and repot the plant if needed to prevent root rot.