Canterbury bells Care (Gloxinia perennis)

Canterbury bells

About Canterbury bells

Canterbury bells, Gloxinia perennis, is a perennial flowering plant grown for its drooping, bell-shaped blooms and upright, leafy stems. It forms clumps that spread slowly over time. Native to parts of South America, it is often cultivated in temperate gardens and sometimes in containers for its showy, nodding flowers. The plant prefers bright light, moderate moisture, and well-drained soil. It is moderately easy to grow if given stable conditions and protection from harsh extremes. Understanding how to care for Canterbury bells helps maintain strong flowering and prevent stress-related decline.

Main Plant Requirements

Care Difficulty

Moderate Care

Light Preference

Partial Shade

Water Requirements

Keep Soil Moist

Temperature Preference

Tropical / Frost Sensitive

Hardiness Zone

9–11

Soil Texture

Loamy, Peaty, Organic-rich

Soil pH

Acidic (5.5–6.5), Slightly acidic (6.5–7.0)

Soil Drainage

Moist but well-drained

Fertilization

Moderate (every 2–4 weeks)

Get Personalized Care Plan

Scan your plant to receive care tips personalized for your specific plant

Available on iOS and Android

How to Care for the Canterbury bells

Gloxinia perennis prefers bright, indirect light that mimics a lightly shaded forest edge.

  • Provide 3–5 hours of gentle morning sun with dappled or filtered light for the rest of the day; avoid harsh midday and afternoon sun that can scorch foliage.
  • Plant in partial shade outdoors, such as east-facing borders or under high, open-canopy trees, similar to spots suitable for caring for Canterbury bells.
  • Watch leaf color: pale, stretched growth signals too little light, while crisp, brown patches indicate excessive direct sun exposure.

This rhizomatous perennial needs consistently moist but not waterlogged soil for reliable growth.

  • Water when the top 2–3 cm of soil feels dry to the touch, aiming for evenly moist soil around the rhizomes without standing water.
  • Use a free-draining loam with added organic matter so excess water drains through quickly, reducing root and rhizome rot risk in Gloxinia perennis.
  • In cool seasons or during slower growth, allow the surface to dry slightly deeper and watch for limp, drooping leaves (too dry) or yellowing, mushy tissue (too wet).

This species thrives in warm, frost-free conditions similar to a sheltered, humid subtropical garden.

  • Aim for 65–80°F (18–27°C) during active growth for best flowering and leaf development.
  • Protect from cold; growth slows below 55°F (13°C), and frost at 32°F (0°C) or lower can kill foliage and damage underground rhizomes.
  • In hot spells above 86°F (30°C), provide shade, mulch, and steady soil moisture to limit heat stress and leaf scorch while maintaining good air movement.

This species prefers consistently humid air to mimic its native tropical habitat.

  • Aim for 60–80% humidity; it tolerates brief dips lower but dries out quickly in heated or air-conditioned rooms.
  • Crisping leaf edges, curling, and stalled bud development indicate humidity stress rather than underwatering.
  • Use a pebble tray, grouped plants, or a small cool-mist humidifier instead of misting to raise humidity around Gloxinia perennis and Canterbury bells.

This plant performs best in loose, airy, organic-rich soil that drains quickly but holds some moisture.

  • Use a mix of roughly 50% peat or coco coir, 30% fine bark, and 20% perlite to create a fibrous, well-aerated structure.
  • Aim for slightly acidic pH around 5.5–6.5, which supports nutrient uptake and healthy root function.
  • Avoid compacted, clay-heavy, or always-wet substrates that suffocate roots and promote rot in Gloxinia perennis rhizomes.
  • Improve drainage by raising containers slightly off saucers and avoiding dense garden soil in pots.

This species is well suited to container growing, especially in climates with cool winters or limited garden space.

  • Choose a wide, shallow pot to accommodate its spreading rhizomes and prevent water from sitting deep around the roots.
  • Use a relatively heavy or clay container so the tall foliage remains stable and does not tip in wind or on balconies.
  • Ensure fast runoff by using generous drainage holes and emptying saucers within 10–15 minutes after watering to prevent root rot.

Gloxinia perennis benefits from modest feeding during active growth to support foliage and flowering.

  • Use a balanced liquid fertilizer (around 10-10-10 or 20-20-20) diluted to 1/4–1/2 strength for container plants.
  • Apply every 2–4 weeks during spring–summer while the plant is actively growing, especially when caring for Canterbury bells nearby in mixed plantings.
  • Pause or reduce feeding to once every 6–8 weeks at very weak strength during fall–winter or any semi-dormant phase.
  • In rich, well-amended soil, supplement with a light topdressing of compost instead of frequent high-strength feeds.

Gloxinia perennis needs only light pruning to stay tidy and to maintain healthy flowering growth.

  • Best timing is after main flowering flushes in late spring or summer, when the plant is actively growing.
  • Remove spent flower stalks, yellowing leaves, and any damaged or diseased stems with clean, sharp scissors or hand pruners.
  • Thin crowded shoots slightly at the base to improve air movement and reduce fungal problems.
  • Light shaping helps keep clumps compact without reducing next season’s blooms.

Gloxinia perennis is usually grown in the ground, but container plants or crowded clumps benefit from occasional transplanting.

  • Look for roots circling the pot, water running straight through, or slowed growth as signs a container plant needs more space.
  • Plan repotting or dividing and transplanting for spring, once danger of frost has passed and active growth resumes.
  • Every 2–3 years, lift and divide crowded outdoor clumps, replanting divisions at the same depth in fresh, well-drained soil.
  • Reduce root stress by watering well before and after the move, keeping the root ball as intact as possible, and shading for a few days.

Gloxinia perennis is commonly propagated by division or seeds, depending on the grower’s goals.

  • Divide established clumps in spring, separating sections with several shoots and healthy roots, then replant promptly.
  • Sow fresh seed on the surface of a moist, fine seed mix at 68–75°F with bright, indirect light and consistent humidity.
  • Do not bury tiny seeds; press lightly into the surface and cover trays with a clear lid or plastic dome for even moisture.
  • Provide gentle bottom warmth and good air circulation to reduce damping-off and support strong seedling growth.

Gloxinia perennis is frost sensitive and needs protection in regions with freezing winters.

  • In USDA zones warmer than 9, apply a 5–8 cm mulch layer over the root zone to buffer temperature swings.
  • In colder areas, lift rhizomes in fall, store them barely moist in a cool, frost-free space, and replant in spring.
  • For container plants, move pots indoors before temperatures drop near 40°F, placing them in bright, cool conditions.

Care Tips

Rhizome division timing

Divide and replant crowded rhizomes only in early spring, just as new growth buds swell, to reduce transplant shock and maintain vigorous clumps.

Shaded root mulch

Apply a thin, airy layer of fine bark or leaf mold around the base to keep rhizomes cool and evenly moist while avoiding direct contact with stems to prevent rot.

Support for tall spikes

Install discreet stakes or small hoop supports when flower spikes first appear, then loosely tie stems with soft ties so heavy blooms do not bend or break.

Moisture mapping

Place a few small, labeled soil moisture probes or wooden markers in different parts of a large bed to learn which spots dry out faster and adjust watering zones accordingly.

Slug and snail barrier

Create a 5–10 cm ring of coarse gravel or crushed lava rock around plants and hand-pick pests at dusk after rain to limit slug and snail damage on tender foliage.

Common Pests and Diseases

Botrytis blight

This disease causes soft, water-soaked spots on leaves, flowers, and flower stalks that quickly develop gray, fuzzy mold, especially under cool, humid conditions. Symptoms include collapse of buds and flower stems and a general mushy appearance of affected tissue.

Solution

Remove and discard all infected leaves, flowers, and debris, and avoid overhead watering so foliage dries quickly. Improve air movement, thin crowded growth, and in persistent cases use a fungicide labeled for Botrytis on ornamental Gesneriads, following label directions carefully.

Powdery mildew

This disease appears as white, powdery patches on leaves and stems, which can lead to yellowing, distortion, and reduced flowering in Gloxinia perennis plant care. Symptoms include a dusty coating that may spread over much of the foliage in warm conditions with poor airflow.

Solution

Increase air circulation around the plant, avoid wetting foliage, and remove heavily affected leaves to reduce spore spread. Treat remaining growth with a labeled low-toxicity fungicide such as potassium bicarbonate, sulfur, or a horticultural oil, applied according to instructions.

Cyclamen mites

These insects are microscopic pests that attack young leaves and developing buds, causing thickened, twisted, and brittle foliage along with deformed or aborted flower stalks. Symptoms include stunted new growth that may appear bronzed or roughened at the surface.

Solution

Isolate the plant immediately, remove and discard the most distorted leaves and buds, and maintain lower humidity around the plant for a period to discourage mites. For persistent infestations, use a miticide specifically labeled for cyclamen mites or a repeated application of insecticidal soap or horticultural oil, ensuring thorough coverage of new growth.

Mealybugs

These insects form white, cottony clusters in leaf axils, on flower stalks, and along veins, feeding on plant sap and causing leaf yellowing and sticky honeydew deposits. This pest can weaken plants over time and promote sooty mold on the honeydew.

Solution

Dab visible insects with cotton swabs dipped in 70% isopropyl alcohol and rinse the plant gently to remove residues. For larger populations, apply insecticidal soap or a light horticultural oil to all plant surfaces, repeating at 7–10 day intervals until no new mealybugs appear.

Pythium crown rot

This disease affects the basal portion of stems where they meet the rhizome, causing dark, water-soaked, and collapsing tissue that can spread quickly in overly wet, poorly drained conditions. Symptoms include sudden wilting and yellowing despite moist soil, with a soft, discolored crown area.

Solution

Discard severely affected plants, and for early cases remove all rotted tissue and replant only firm, healthy rhizome sections in fresh, sterile, well-draining mix. Prevent recurrence by using clean pots, avoiding waterlogged conditions, and watering only when the upper substrate begins to dry.

Interesting Facts

Misleading common name

Despite the common name creeping gloxinia, this species is not a true Gloxinia but belongs to the genus Gloxinia in the broader sense that has since been taxonomically revised; it is now often treated in the genus Seemannia by some botanists based on molecular and morphological data.

Hummingbird pollination strategy

Its tubular, pendulous purple flowers are adapted for hummingbird pollination, with nectar positioned deep in the floral tube so that visiting birds contact the reproductive structures while feeding.

Rhizomatous survival habit

The plant grows from thick, creeping rhizomes that allow it to spread slowly over time and to resprout after periods of stress, such as temporary drought or damage to above-ground stems.

Botan icon

Did you know?

In parts of its native range in the Andes and surrounding regions, this species often grows on moist rock faces and steep banks, behaving as a lithophyte that anchors into crevices where organic matter and water accumulate.

FAQs about Canterbury bells

Lack of flowers often comes from insufficient cold period, excess nitrogen fertilizer, or too much shade. This biennial usually blooms in its second year after experiencing winter chill, then puts energy into flowering rather than leaf growth.

Grow Healthy Plants with Botan Care

Keep your plants happy and healthy with plant identification, disease detection, and easy care guidance.

Botan plant care app — identify plants on mobile

Explore More Plants