How to Grow Eximia

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Eximia

Columnea eximia

flower

Eximia is a tropical epiphytic plant known for its striking tubular red flowers with yellow throats that bloom prolifically. A member of the Gesneriaceae family, it thrives as a hanging plant or in baskets, producing cascading stems adorned with small, fuzzy green leaves. The plant is prized by collectors for its showy, long-lasting flowers and relatively manageable care requirements indoors.

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Example Eximia timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Eximia

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. First Eximia blooms

    Mid-to-late summer

    Before the first fall frost (≈ Nov 8)

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

Growing Conditions

☀️
Sun: Bright, indirect light; 10-14 hours daily ideal. Avoid direct afternoon sun which can scorch leaves.
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Water: Keep soil consistently moist but never waterlogged during growing season. Water when top inch feels dry. Reduce watering in winter. Prefers humid conditions (50-70% humidity); mist regularly or use a pebble tray.
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Spacing: Hanging baskets (8-12 inches diameter); space multiple plants 12+ inches apart inches
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Days to maturity: Flowers bloom year-round once established; mature flowering within 6-12 months
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Planting depth: Plant at same depth as current root ball; do not bury stem

Soil

Type: Lightweight, well-draining epiphytic mix (orchid bark, peat moss, perlite)
pH: 5.5-6.5
Amendments:
Orchid bark or charcoal Perlite or coarse sand Sphagnum moss Coconut coir

Growing Zones

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Thrives in USDA zones 10b-11; best grown indoors in cooler climates

10b 11a 11b

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Growth Stages

1

Establishment

2-4 weeks

Newly potted plant focuses on root development with minimal visible growth

Water sparingly, maintain warm temperatures (65-75°F), avoid fertilizing until new growth appears

2

Vegetative Growth

3-6 months

Plant develops trailing stems with soft, fuzzy green leaves; stems can grow 12-24 inches

Provide bright indirect light, maintain high humidity, fertilize bi-weekly with diluted balanced fertilizer

3

Budding

2-4 weeks

Small flower buds appear along stems, initially appearing as tight green nodules

Increase humidity slightly, avoid moving plant, maintain consistent moisture, reduce nitrogen fertilizer

4

Flowering

4-12 weeks (can rebloom multiple times yearly)

Vibrant red tubular flowers with yellow throats open, typically 1-2 inches long, appearing in clusters

Maintain humidity and consistent watering, continue light feeding with low-nitrogen fertilizer, deadhead spent flowers to encourage more blooms

5

Rest/Dormancy

4-8 weeks (optional depending on light conditions)

Plant may slow growth and flowering temporarily, especially in winter months

Reduce watering slightly, maintain warm temperature (minimum 60°F), provide ample light, resume regular fertilizing when growth resumes

Companion Planting

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Plant with:

Avoid planting near:

Succulents (conflicting water needs) Cacti (conflicting humidity needs) Plants requiring dry dormancy periods

Common Pests

  • Increase humidity to 60%+, spray with neem oil or insecticidal soap every 7-10 days; isolate affected plants

  • Remove with alcohol-soaked cotton swab, spray with insecticidal soap or neem oil weekly until resolved

  • Hand-remove with tweezers, treat with horticultural oil or insecticidal soap; inspect regularly

  • Allow soil surface to dry slightly between waterings, use yellow sticky traps, apply Bti (Bacillus thuringiensis israelensis) if severe

  • Improve air circulation, reduce humidity slightly if needed, remove affected leaves, avoid wetting foliage

Uses

🏠

Indoor Ornamental Decoration

Household

Eximia's vibrant red and yellow flowers make it an exceptional hanging basket or shelf plant for indoor decoration, bringing tropical elegance to homes and offices. [source]

🎨

Plant Propagation & Collecting

Craft

The plant propagates easily from stem cuttings, making it popular among plant collectors and enthusiasts for building collections and sharing with other gardeners. [source]

🦋

Hummingbird Attraction

Wildlife

In tropical outdoor settings, the tubular red flowers attract hummingbirds and other pollinators, making it valuable for pollinator gardens. [source]

Harvest Tips

Not applicable as this is an ornamental flowering plant. Deadhead spent flowers by pinching them off to encourage continuous blooming. Prune leggy stems in spring to promote bushier growth. Cuttings can be propagated for new plants.

Fun Facts

  • 🌱 Columnea eximia is native to the cloud forests of Central and South America, where it naturally grows as an epiphyte on tree branches in humid, shaded conditions.
  • 🌱 The plant's flowers are specifically adapted to hummingbird pollination—the tubular shape and bright red color are classic indicators of hummingbird-pollinated flowers.
  • 🌱 Unlike many tropical plants, Eximia can bloom nearly year-round indoors under proper lighting conditions, providing continuous flowers for 8-12 months per year in optimal conditions.

Gardening Terms

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