Bow Trumpetbush Plant Care
Dolichandrone arcuata C.B.Clarke
Updated · Sources · How we source care data
Dolichandrone arcuata, known in Malayalam as pambukaimaram, is a deciduous tree in the Bignoniaceae family. This species is native to the dry, deciduous forests of the Eastern Ghats in the Indian subcontinent.
Every 7–14 days
Full sun to partial shade
60–85°F
40–70%
At a glance
How do you care for Bow Trumpetbush?
Plant Bow Trumpetbush in full sun to partial shade (USDA zones 13a) and water a young tree every 7–14 days until it is established. It tolerates temperatures of 60–85°F (16–29°C). Fertilize it every 6 months during the growing season.
Where Is the Bow Trumpetbush Native To?
What Is the Bow Trumpetbush?
Bow Trumpetbush (Dolichandrone arcuata) belongs to the Bignoniaceae family within the Dolichandrone genus. Bow Trumpetbush is native to the dry, deciduous forests of the Eastern Ghats in the Indian subcontinent.
Bow Trumpetbush displays a tall, upright tree growth habit, reaching up to 30 ft tall with a spread of approximately 15 ft. Bow Trumpetbush produces showy clusters of tubular, pink or purple flowers.
Leaf size: approximately 6 inches.
How Often Should You Water a Bow Trumpetbush?
Water a young or newly planted Bow Trumpetbush every 7–14 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established trees mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.
Watering Frequency
Every 7–14 days
Until established; then in dry spells
What Light Does the Bow Trumpetbush Need?
Bow Trumpetbush thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Bow Trumpetbush Prefer?
Dolichandrone arcuata tolerates temperatures of 60–85°F. Bow Trumpetbush prefers humidity levels of 40–70%.
Temperature
60–85°F
Humidity
40–70%
What Soil Mix Works Best for a Bow Trumpetbush?
Well-draining loamy soil with added compost for nutrients. Good drainage is essential for Bow Trumpetbush to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Bow Trumpetbush?
Feed Bow Trumpetbush every 6 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established trees in good soil often need little extra feeding, so let weak growth or pale foliage guide you.
Stop feeding by late summer so new growth can harden before winter.
Fertilizing
Every 6 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
Where Should You Plant a Bow Trumpetbush?
Choose a spot with full sun to partial shade and well-draining loamy soil with added compost for nutrients. Avoid low spots where water collects after rain.
Bow Trumpetbush is suited to USDA Zone 13a.
Plant container-grown or balled-and-burlapped trees in spring or early autumn, setting the root flare at soil level, and water well after planting.
How Far Apart Should You Plant a Bow Trumpetbush?
Bow Trumpetbush can spread to about 15 ft (4.6 m) and reach about 30 ft (9 m) tall. Space plants about 15 ft (4.6 m) apart so mature crowns don't crowd each other, and plant at least half that distance from buildings, fences and paths.
Planning a row or hedge? Try the tree spacing calculator.
How Do You Prune a Bow Trumpetbush?
Prune Bow Trumpetbush while it is dormant in late winter: first remove dead, damaged and crossing branches, then thin lightly for shape.
If it flowers in spring, prune right after flowering instead so you don't remove next year's buds. Never take off more than about a quarter of the tree in one year.
How Do You Care for a Bow Trumpetbush in Winter?
Bow Trumpetbush is frost-tender (hardy to USDA zone 13). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.
How Do You Propagate a Bow Trumpetbush?
Bow Trumpetbush can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to handkerchief tree plant care, which shares the same genus.
Is the Bow Trumpetbush Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Bow Trumpetbush, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.
This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.
See all plants toxic to cats and plants toxic to dogs.
What Pests and Diseases Affect the Bow Trumpetbush?
Bow Trumpetbush is susceptible to aphids, caterpillars. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.
What USDA Hardiness Zone Does the Bow Trumpetbush Need?
Bow Trumpetbush grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. Bow Trumpetbush is native to the dry, deciduous forests of the Eastern Ghats in the Indian subcontinent. In cooler regions, grow Bow Trumpetbush as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
Bow Trumpetbush is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Dolichandrone genus — compare its care with other Dolichandrone species on PlantoScan.
Dolichandrone is part of the Bignoniaceae plant family — browse all Bignoniaceae genera and species.
Bow Trumpetbush thrives in bright light and direct sun — see other bright-light plants.
Related Plant Care Guides
Closely related plants with similar care requirements:
Sources
- Scientific name & taxonomy: Dolichandrone arcuata C.B.Clarke, family Bignoniaceae (first published in Fl. Brit. India 4: 380 (1884)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Bow Trumpetbush, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
- Hardiness zone: USDA Zone 13a, calculated from the plant's minimum temperature.
- Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.
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