Manuka
leptospermum scoparium
Also known as: ["Manuka tree","Tea tree"]
Overview
A small tree or shrub native to New Zealand and Australia, known for its fragrant white or pink flowers and medicinal properties.
Benefits & Perks
["fragrant flowers","wildlife attractant (bees, butterflies, birds)","drought tolerant","aesthetic foliage"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Myrtales |
| Family: | Myrtaceae |
| Genus: | Leptospermum |
| Botanical Name: | Leptospermum scoparium |
Plant Characteristics
Basic Information
- Category: Trees
- Suitable Location: raised garden bed or container in a sunny, sheltered spot
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"5–35°C"}
- Hardiness: {"zones":"8–11"}
- Misting: rarely required, only if grown in very dry indoor conditions
- Drainage: Fast-draining to prevent root rot.
- Soil Type: Well-draining, slightly acidic soil; mix of peat, sand, and loam.
Maintenance Level
- Maintenance Level: moderate
- Toughness Level: moderate
- Pruning Frequency: Annually after flowering; light pruning can be done as needed.
- Pruning Intensity: Moderate; remove up to one-third of old growth if needed.
Care Details
Ideal Sunlight Coverage:
Full sun to partial shade; 6–8 hours of direct sunlight daily; adjust for intense summer sun.
Sunlight Tolerance Tips:
Acclimate plants gradually to intense sunlight; protect from harsh midday sun; provide dappled shade in extreme heat.
Care Requirements
Care Difficulty
moderatemoderate
Sunlight
full sun to partial shade
Rotate plant for even light exposure; use sheer curtains to filter intense sun; avoid placing near reflective surfaces.
Watering
every 7–10 days during active growth, less frequently in winter
Water thoroughly but infrequently; ensure soil dries between waterings; avoid overwatering.
Soil
well-drained, slightly acidic soil with good organic content
pH: Acidic to slightly acidic, 5.5–6.5.
Use acidic soil mix; avoid heavy clay soils; ensure pots have drainage holes.
Temperature
Prefers mild temperatures, 50–75°F (10–24°C); tolerates brief frosts but thrives in moderate climates.
Avoid sudden temperature changes; protect from drafts; maintain consistent room temperature for indoor plants.
Fertilizing
every 2–3 months during spring and summer with a balanced, slow-release fertilizer
Fertilize lightly in spring; avoid over-fertilizing; flush soil occasionally to prevent salt buildup.
Propagation
Methods
Stem cuttings; softwood cuttings root most readily.
Step-by-Step Propagation Guide
- Take 4–6 inch cuttings.
- Remove lower leaves.
- Dip in rooting hormone.
- Plant in medium.
- Maintain humidity.
Best Time: Late spring to early summer when new growth is present.
Environment
High humidity (70–80%), warm temperatures (65–75°F), indirect light.
Medium
Well-draining mix of perlite and peat moss or cactus mix.
Hormone
Rooting hormone recommended for faster rooting.
Timeline
Roots develop in 4–8 weeks; establish in new pot after 3–6 months.
Tools Needed
Pruning shears, rooting hormone, small pots, misting spray bottle.
Quick Tips
Use healthy, non-flowering stems; keep cuttings out of direct sun; maintain consistent moisture.
Pruning & Repotting
Pruning Guide
Method
Thinning cuts to open the plant; heading back to encourage branching.
Pruning Plan
Shape plant, encourage bushiness, remove dead or diseased wood; prune after flowering for best results.
Tools
Pruning shears, loppers, gloves, disinfectant.
Checklist
Disinfect tools; prune dead/damaged wood; shape plant; avoid over-pruning.
Repotting Guide
Best Season
Early spring before new growth begins.
Pot Size
Increase pot size by 2–3 inches in diameter; avoid oversized pots.
Method
Remove plant gently; trim roots if necessary; use fresh, well-draining soil; ensure good drainage.
Suggestions
Repot every 2–3 years or when roots fill the pot; beneficial for container-grown plants.
Checklist
Check root bound status; prepare new pot with drainage; use fresh soil mix; water after repotting.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture; water deeply; ensure drainage; adjust for season.
How to Apply Water Properly
Water at the base of the plant, ensuring even moisture reaches the root zone; allow excess water to drain freely; water early in the day to minimize evaporation.
Watering Schedule Tips
Water deeply once the top inch of soil is dry; reduce frequency in winter to prevent root rot.
Soil Improvement
Add perlite or coarse sand for drainage; incorporate organic matter like peat moss; ensure pH is within preferred range.
Temperature Stress Management
Signs of Temperature Issues
Wilting, leaf drop, or browning edges in extreme heat; stunted growth or blackened leaves in cold stress.
Cold Stress
Slows growth, may cause leaf drop; prolonged cold can lead to root damage or death.
Solution: Protect from frost with frost cloth; move potted plants indoors; ensure good air circulation to prevent mold.
Hot Stress
Leaves may scorch, wilt, or drop; reduced flowering and growth in prolonged heat.
Solution: Provide shade during peak sun; increase watering; use mulch to retain soil moisture.
Fertilizing Guide
Fertilizing Checklist
Check fertilizer type; follow dilution instructions; apply during active growth; avoid winter feeding.
Fertilizing Method
Use a balanced, slow-release fertilizer in spring; dilute liquid fertilizer to half-strength if needed; avoid fertilizing in winter.
Common Problems & Solutions
Toxicity Warning
Cats
Non-toxicLeptospermum scoparium is not considered toxic to cats. The plant does not pose a significant risk to feline health when ingested in small amounts.
⚡ Toxic If:
Generally non-toxic
Dogs
Non-toxicLeptospermum scoparium is not considered toxic to dogs. The plant is not known to cause adverse effects when ingested in small quantities.
⚡ Toxic If:
Generally non-toxic
Humans
Non-toxicLeptospermum scoparium, commonly known as Manuka, is generally considered non-toxic to humans. It is widely used in traditional medicine and culinary applications, particularly for its honey, which is renowned for its antibacterial properties.
⚡ Toxic If:
Generally non-toxic
Frequently Asked Questions
Q: Is Manuka honey derived from this plant?
A: Yes, Manuka honey is produced by bees that pollinate the flowers of Leptospermum scoparium.
Q: Can this plant be grown indoors?
A: While possible, it is best suited for outdoor cultivation due to its size and light requirements.
Q: Is Manuka tea made from this plant?
A: Yes, the leaves can be used to make a herbal tea, often referred to as Manuka tea.
Quick Reference
| Family: | Myrtaceae |
| Care: | moderate |
| Light: | full sun to partial shade |
| Water: | every 7–10 days during activ |
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