Zanzibar Trumpet Tree
markhamia zanzibarica
Also known as: ["Zanzibar Trumpet Tree","Markhamia lutea var. zanzibarica"]
Overview
A deciduous tree native to East Africa, known for its showy, trumpet-shaped flowers and attractive foliage.
Benefits & Perks
["fragrant flowers","wildlife attractant (bees, butterflies, birds)"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Lamiales |
| Family: | Bignoniaceae |
| Genus: | Markhamia |
| Botanical Name: | Markhamia zanzibarica |
Plant Characteristics
Basic Information
- Category: Trees
- Suitable Location: outdoor garden in warm climates, or large indoor pot in bright, airy spaces
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"15–30°C"}
- Hardiness: {"zones":"9–11"}
- Misting: rarely required, only if ambient humidity is very low
- Drainage: Fast-draining to prevent waterlogging.
- Soil Type: Well-draining potting mix with added perlite or sand for aeration.
Maintenance Level
- Maintenance Level: moderate
- Toughness Level: moderate
- Pruning Frequency: Light pruning every 2–3 months; major pruning annually or after flowering.
- Pruning Intensity: Moderate; remove up to one-third of growth if needed for shaping or rejuvenation.
Care Details
Ideal Sunlight Coverage:
Bright indirect light for 6–8 hours daily; can tolerate some direct morning sun but avoid harsh afternoon sun.
Sunlight Tolerance Tips:
Acclimate gradually to direct light, protect from intense midday sun, adjust placement based on indoor/outdoor conditions.
Care Requirements
Care Difficulty
moderatemoderate
Sunlight
full sun to partial shade
Rotate plant weekly for even growth; use sheer curtains to filter intense light; move outdoors in spring/summer for stronger light.
Watering
every 7–10 days during active growth, reduce in winter
Water thoroughly until it drains from the bottom, allow soil to dry between waterings, avoid overwatering especially in low light.
Soil
well-draining, loamy soil with organic matter
pH: Slightly acidic to neutral (pH 6.0–7.0).
Ensure pots have drainage holes; avoid heavy clay soils; topdress with compost annually.
Temperature
Prefers 65–85°F (18–29°C); tolerates brief dips to 50°F (10°C) but thrives in warmth.
Avoid sudden temperature changes; keep away from AC/heater vents; use a thermometer to monitor.
Fertilizing
every 4–6 weeks during growing season, none in winter
Always water before fertilizing to prevent root burn; flush soil occasionally to prevent salt buildup; use organic options for gentle feeding.
Propagation
Methods
Stem cuttings or seeds; stem cuttings are more common for home growers.
Step-by-Step Propagation Guide
- Take a 4–6 inch cutting, remove lower leaves, apply hormone, plant in medium, keep moist and warm.
Best Time: Spring or early summer when the plant is actively growing.
Environment
High humidity (70–90%), warm temperatures (75–85°F), indirect light.
Medium
Well-draining mix like perlite and peat moss or cactus mix.
Hormone
Recommended to use rooting hormone for faster root development.
Timeline
Roots may appear in 3–6 weeks; establish in new pot after 2–3 months.
Tools Needed
Pruners, rooting hormone, small pots, misting spray bottle.
Quick Tips
Use healthy, non-flowering stems; maintain consistent moisture; provide bottom heat if possible.
Pruning & Repotting
Pruning Guide
Method
Use clean cuts just above a leaf node or branch junction; avoid tearing bark.
Pruning Plan
Shape the plant, encourage bushier growth, remove dead/diseased parts, maintain size.
Tools
Pruning shears, sterilizing solution, gloves.
Checklist
Sterilize tools, prune selectively, remove dead/diseased parts, clean up debris.
Repotting Guide
Best Season
Spring, before the active growing season begins.
Pot Size
Choose a pot 1–2 inches larger in diameter than the current one.
Method
Remove plant gently, trim roots if needed, place in new pot with fresh soil, water lightly.
Suggestions
Repot every 2–3 years or when roots outgrow the pot; beneficial for growth and health.
Checklist
Check root bound status, prepare new pot, trim roots if necessary, use fresh soil, water lightly.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture, water deeply, ensure drainage, adjust for season.
How to Apply Water Properly
Water directly at the root zone, ensure water penetrates deeply to reach the root ball, allow excess water to drain completely, water in the morning to reduce evaporation and fungal risk.
Watering Schedule Tips
Water deeply once the top inch of soil feels dry; reduce frequency in winter to prevent root rot.
Soil Improvement
Add perlite or coarse sand for drainage, incorporate organic matter like compost for fertility, use a cactus mix as base.
Temperature Stress Management
Signs of Temperature Issues
Yellowing leaves (cold), leaf drop (heat), stunted growth (extremes).
Cold Stress
Slows growth, causes leaf yellowing, may lead to root damage if prolonged.
Solution: Move to a warmer spot, insulate pot with bubble wrap, avoid cold drafts.
Hot Stress
Wilting, leaf scorch, reduced vigor, potential bud drop.
Solution: Provide shade, increase humidity, water more frequently but avoid waterlogging.
Fertilizing Guide
Fertilizing Checklist
Check season, dilute correctly, water before feeding, avoid winter feeding.
Fertilizing Method
Use balanced liquid fertilizer diluted to half strength every 4–6 weeks during growing season (spring/summer); cease in fall/winter.
Common Problems & Solutions
Toxicity Warning
Cats
Slightly ToxicCats may experience mild gastrointestinal symptoms if they ingest parts of Markhamia zanzibarica. The toxicity is generally low but can cause discomfort.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Dogs
Slightly ToxicIn dogs, ingestion of Markhamia zanzibarica seeds and roots can lead to mild gastrointestinal upset. The toxicity is not severe but can cause discomfort and distress.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Humans
Slightly ToxicMarkhamia zanzibarica contains compounds that can cause mild gastrointestinal distress and discomfort when ingested. The toxic effects are generally not life-threatening but can lead to significant discomfort.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Frequently Asked Questions
Q: Is Markhamia zanzibarica suitable for indoor cultivation?
A: No, it is best suited for outdoor cultivation due to its size and growth habit.
Q: Does this plant require full sun?
A: Yes, it thrives in full sun to partial shade.
Q: How often should it be watered?
A: Water moderately, allowing the soil to dry slightly between waterings.
Quick Reference
| Family: | Bignoniaceae |
| Care: | moderate |
| Light: | full sun to partial shade |
| Water: | every 7–10 days during activ |
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