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Brazilian Bellflower

Callianthe megapotamica (kal-lee-AN-thee meg-uh-poh-TAY-mih-kuh)

Family: Malvaceae Unknown Shrub (3-15 ft)

Brazilian bellflower is a showy, deciduous to semi-evergreen, medium-sized, perennial shrub in the mallow family (Malvaceae), native to Brazil. It thrives in subtropical regions and may be grown as an indoor plant or outdoors in a sheltered location. It may reach up to 8 feet tall and has triangular-shaped green leaves and pendulous, bell-shaped, or lantern-like flowers with yellow petals and red calyx. They resemble Chinese lanterns and adorn the shrub with a profusion of blooms from summer until the first frost. This plant requires bright, indirect light, moderate temperatures, and a humid environment. The soil should be loamy, moist, and well-drained. Pruning is recommended in late winter or early spring to maintain the plant's shape and to encourage new growth. You can prune as much as 40 percent of the plant. Remove any spent flowers during the blooming season. Re-potting may be necessary about every 1 to 2 years. During the growing season, it may be propagated by stem cuttings. The Brazilian bellflower is a slender woody shrub that grows up to 5 to 8 feet tall and equally as wide, with graceful arching branches. The leaves are medium green, simple with an elongated triangular shape and cordate base, and serrate margins. The small red and yellow ornamental flowers are pendulous and dangle downwards. The flowers measure 2 inches wide and attract hummingbirds, bees, and butterflies. The Brazilian bellflower is easy to grow and fast-growing. It may be grown in a conservatory or outdoors during the summer in a sheltered location. Consider this plant for a container or hanging basket on your patio or as a bed and border planting. Insects, Diseases, and Other Plant Problems : Monitor for whiteflies, spider mites, mealybugs, and scale. May be susceptible to honey fungus or viruses. Leggy growth can occur.

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 53 attributes.

How it fits the guild

Guild layer 3 - Shrub (3-15 ft) Optimal soil pH Acid (<6.0); Neutral (6.0-8.0)
See companions & conflicts ↓

Companions & Conflicts

Curated pairwise relationships between this plant and others in the library — who feeds whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.

No curated interactions recorded for this species yet.

Also noted by NC State

Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.

Fills a similar niche Cuphea ignea Lantana camara 'Miss Huff' Salvia rosmarinus

Full plant profile

Growing Conditions
Plant type
Perennial; Shrub
Life cycle
Perennial
USDA zones
8b, 9a, 9b, 10a, 10b, 11a, 11b
Light
Full sun (6 or more hours of direct sunlight a day) | Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Soil texture
High Organic Matter; Loam (Silt); Sand
Soil pH
Acid (<6.0); Neutral (6.0-8.0)
Soil drainage
Good Drainage | Moist
Available space
3 feet-6 feet
Mature size
Height: 5 ft. 0 in. - 8 ft. 0 in. | Width: 5 ft. 0 in. - 8 ft. 0 in.
Growth rate
Rapid
Maintenance
Medium
Canopy layer
3 - Shrub (3-15 ft)
Form & Appearance
Habit / form
Arching; Prostrate
Texture
Medium
Foliage
Semi-evergreen
Leaf color
Green
Leaf type
Simple
Leaf arrangement
Alternate
Leaf shape
Cordate; Deltoid
Leaf margin
Serrate
Leaf size
1-3 inches long
Hairs present
Yes
Leaf detail
The leaves are medium green, simple, and have an elongated triangular shape. The base of the leaf is cordate, and the tip terminates in a slender point. The margins are serrate, and the leaf is minutely hairy.
Flower color
Gold/Yellow; Red/Burgundy
Flower value
Long Bloom Season; Showy
Flower form
Solitary
Flower shape
Bell
Flower size
1-3 inches
Flower detail
The solitary bell-shaped flowers have both male and female parts. These flowers resemble dangling Chinese lanterns. They are 2 inches wide and have yellow petals underneath the red calyces. The flowers have a velvety and furry texture. Blooming occurs from summer until the first frost.
Bloom time
Fall; Summer
Stem detail
The stems are slender and woody.
Wildlife & Ecology
Native status
Unknown
Origin
Brazil South
Distribution
Introduced: Bolivia and Madeira
Wildlife value
Attracts bees, butterflies, and hummingbirds.
Attracts
Bees; Butterflies; Hummingbirds; Pollinators
Play value
Attracts Pollinators
Landscape Use
Landscape location
Container; Patio
Landscape theme
Butterfly Garden; Pollinator Garden
Design feature
Border; Specimen
Garden tags
#showy flowers #easy to grow #lantern #trailing #patio #container plant #hummingbird friendly #bee friendly #arching #fast growing #red flowers #long bloom season #butterfly friendly #perennial #butterfly garden #specimen #tropical feel #summer flowers #humidity tolerant #shrub #acidic soils tolerant #semi-evergreen #border #ornamental shrub #heat tolerant #pollinator garden #green leaves
Problems & Resistance
Insect problems
Caterpillars Found on Flowers and Foliage; Aphids on Ornamental Landscape Plants; Crapemyrtle Flea Beetle
Resistant to
Heat; Humidity
Propagation
Stem Cutting

Planted at Hunnicutt

Nobody’s planted this one yet.