How to Grow Temple Bells

iNaturalist

Temple Bells

Smithiantha multiflora

flower

Temple Bells is a tropical houseplant known for its delicate, pendant tubular flowers in shades of red, pink, yellow, or white with spotted throats. It produces velvety, heart-shaped foliage and grows from rhizomes, making it an excellent choice for hanging baskets and indoor displays. The plant thrives in warm, humid conditions and blooms prolifically when given proper care.

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Example Temple Bells timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Temple Bells

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. First Temple Bells blooms

    Around Jul 16

    ≈ 90 days after planting

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

Growing Conditions

☀️
Sun: Bright, indirect light; 12-14 hours daily optimal; avoid direct afternoon sun which scorches foliage
💧
Water: Keep soil consistently moist but not waterlogged; reduce watering during dormancy; use room-temperature water to avoid leaf spotting; water at soil level to prevent wetting foliage
📏
Spacing: 12-18 inches apart in containers inches
📅
Days to maturity: 90-120 days from rhizome to first flowers
🌱
Planting depth: Rhizomes planted 0.5-1 inch deep; just below soil surface

Soil

Type: Well-draining, peat-based potting mix with added perlite and orchid bark
pH: 5.5-6.5
Amendments:
Peat moss Perlite Orchid bark Coco coir

Growing Zones

Find your zone →

Year-round outdoors in zones 10b-11; grown as houseplant elsewhere

10b 11a 11b

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Growth Stages

1

Rhizome Dormancy

2-4 weeks

Planted rhizomes are dormant with minimal visible activity; roots begin developing underground

Keep soil lightly moist, warm (70-75°F), with bright indirect light; do not overwater or allow to dry completely

2

Sprouting & Foliage Development

3-6 weeks

Shoots emerge from rhizomes; velvety heart-shaped leaves unfold; plant grows bushy with multiple stems

Increase humidity to 60-75% using pebble trays or humidifier; maintain warm temperatures (70-80°F); feed biweekly with balanced liquid fertilizer

3

Budding

2-3 weeks

Flower buds form at leaf axils and branch tips; buds appear as small, compact clusters beneath canopy

Maintain consistent moisture and humidity; apply bloom-promoting fertilizer (higher phosphorus); ensure 12+ hours of bright light daily

4

Flowering

4-8 weeks (with potential re-bloom)

Tubular flowers open in succession; blooms are spotted or streaked in throat; flowers pendant or spreading; multiple flush cycles possible

Deadhead spent flowers to encourage continued blooming; maintain humidity and warmth; avoid water on blooms; continue regular feeding

5

Post-Bloom Rest/Dormancy

4-8 weeks

Flowering ceases; foliage may yellow and decline; rhizomes store energy underground; above-ground growth dies back

Gradually reduce watering as foliage declines; stop fertilizing; allow dormancy period of 4-8 weeks; keep rhizomes in cool (55-65°F), dry conditions; resume watering cycle when new shoots emerge

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Cacti (prefer different humidity) Succulents (prefer different watering) Direct heat vents Cold drafts

Common Pests

  • Increase humidity to 70%+ with misting and pebble trays; spray with water to dislodge; use neem oil or miticide if severe; isolate affected plants

  • Remove with damp cloth or cotton swab dipped in rubbing alcohol; apply insecticidal soap; treat weekly until clear

  • Use yellow sticky traps; spray with neem oil or insecticidal soap; improve air circulation; isolate plant

  • Reduce soil moisture; allow top inch to dry between waterings; use yellow sticky traps; apply Bti (Bacillus thuringiensis israelensis) to soil

Uses

🍳

Ornamental display

Culinary

Not consumed; grown purely for ornamental value and visual beauty in interior spaces and conservatories. [source]

🏠

Indoor decoration

Household

Popular hanging basket specimen for living rooms, bathrooms, and shelves; adds tropical ambiance and air-purifying qualities to indoor environments. [source]

🎨

Cut flower arrangements

Craft

Delicate tubular flowers can be used in small floral arrangements, though flowers last only 1-2 days when cut; mostly valued for potted display. [source]

🦋

Pollinator attraction

Wildlife

Tubular flowers attract hummingbirds and small insects in outdoor tropical settings; provides nectar source for pollinators. [source]

Harvest Tips

Deadhead spent flowers by pinching them off at the base to encourage longer bloom cycles and bushier growth; cut back foliage after flowering ceases if dormancy is desired; collect and dry seeds from mature flowers if propagation is planned

Fun Facts

  • 🌱 Temple Bells produces flowers in rapid succession over several weeks, with new blooms opening as older ones fade, creating an extended flowering display.
  • 🌱 The velvety texture of Smithiantha leaves is caused by fine hairs on the leaf surface; water beads up on these hairs rather than being absorbed, which is why watering at soil level is essential to prevent leaf spotting.
  • 🌱 This plant is named after James Smithian, a botanist, and the genus contains about 6 species native to Mexican cloud forests, where they grow in humid, shaded understory conditions.

Gardening Terms

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

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