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How to Grow Clerodendrum — Bleeding Heart Vine

Bleeding heart vine
Clerodendrum thomsoniae plant commonly known as bleeding heart vine

Clerodendrum–commonly called bleeding-heart vine–is a tropical vine that features brilliant red and white flowers. As a houseplant, it can be trained to a trellis or it can spill from a hanging basket. If the growing tips are nipped back, bleeding heart vine can be trained as a small shrub.

Clerodendrum can be trained a trellis, pergola, or other support in tropical regions. It grows best in full sun but is best shaded from the midday sun in hot regions. Indoors Clerodenrum wants a warm room and humidity.

Clerodendrum is a genus of about 400 species of deciduous and evergreen trees, shrubs, and climbers. Clerodendrum is native to tropical and subtropical regions of Africa and Asia.

Get to Know Clerodendrum

  • Plant type: Tropical vine
  • Growing Zones and range: Zone 10-15
  • Hardiness: Tender
  • Height and width: Vine grows to 6 feet (1.8m) or more
  • Foliage: Dark green, heart-shaped leaves are papery, about 5-inches long
  • Flowers: 1-inch tubular flowers, surrounded by large ¾ inch long white calyxes, borne in flattish 5-inch clusters; flowers can be white, yellow, red, blue, or violet
  • Bloom time: Late summer to mid-autumn
  • Uses: Border or wall climber in tropical regions; houseplant
  • Common name: Bleeding heart vine
  • Botanical name: Clerodendrum
  • Family: Verbenaceae
  • Origin: West Africa
Bleeding heart vine, Clerodendrum

Where to Plant Clerodendrum

  • Light outdoors: Plant Celerodendrum in full sun.
  • Light indoors: Clerodendrum needs bright light, some humidity, and warm temperatures.
  • Soil outdoors: Plant in fertile, humus-rich, moist but well-drained soil.
  • Soil indoors: Grow Clerodendrum in standard potting soil.

How to Water and Feed Clerodendrum

  • Keep the soil evenly moist when the plant is growing and flowering; it can dry slightly at other times.
  • Fertilize with a complete fertilizer during spring and summer growing period.
  • Feed Clerodendrum growing indoors with a balanced liquid fertilizer monthly.

Clerodendrum Care

  • To ensure flowering, give Clerodendrum bright but filtered light during the growing season—spring through summer. Keep the soil moist but not wet, created extra humidity by frequent misting or by placing pots on humidity trays.
  • In winter give plants rest in a very cool spot, 50° to 55°F (10°-13°C); let the soil dry almost completely between waterings.
  • Clerodendrum is fast-growing; it can become rangy if not pruned or pinched regularly. Cutting back by half is not unusual. Pruning encourages future blooms. Prune after flowering usually in late autumn, just before the rest period.
  • After the winter rest period, move the plant to a warmer bright spot when new growth appears.
  • Pinch off growing tips to keep pllants small and compact.

Growing Clerodendrum as a Houseplant

  • Grow Clerodendrum indoors where room temperature and humidity are high and light is bright.
  • Grow Clerodendrum in an all-purpose potting medium that is kept evenly moist when the plant is growing and flowering; allow the medium to dry between waterings at other times.
  • Fertilize Clerodendrum every two weeks during spring and summer.
  • After plants have bloomed, cut them back to encourage new growth and flowering.

Clerodendrum Pests and Diseases

  • Mealybugs, scale insects, and red spider mites occasionally attack Clerodendrum.
  • Clerodendrum can suffer leaf spot.

Clerodendrum Propagation

  • Propagate Clerodendrum with suckers taken from the base of shrubs; remove suckers in autumn or spring.
  • Root semi-ripe cuttings with bottom heat in summer.

Clerodendrum Varieties to Grow

  • Clerodendum paniculatum, pagoda flower. Shrubs grows 4 feet tall and 3 feet wide; bears scarlet flowers.
  • C. thomsoniae, bleeding glory vine. Vining plant grows to 12 feet tall; can be clipped smaller; best adapted to indoor conditions; oval, quilted, shiny, papery, dark green leqves; flwoers are red with white calyces; bloom in spring and summer.
  • C. trichotomum. Bushy deciduous shrub; grows to 15 feet tall and wide; bears fragrant white flowers.

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