How to Grow Japanese Pittosporum
Wikimedia Commons
Japanese Pittosporum
Pittosporum tobira
shrubJapanese Pittosporum is a broadleaf evergreen shrub prized for its glossy, dark green foliage and fragrant creamy-white flowers that appear in spring. It's a versatile ornamental that can be grown as a standalone specimen, hedge, or privacy screen, and is relatively low-maintenance once established.
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Example Japanese Pittosporum timeline · Pittsburgh, PA (Zone 6b)
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Plant Japanese Pittosporum
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Japanese Pittosporum
Late summer into fallBefore the first fall frost (≈ Nov 8)
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 8-11; marginally hardy in zone 8a with winter protection
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Get my Japanese Pittosporum timeline →Growth Stages
Establishment
First 6-12 monthsYoung plant with developing root system; foliage is present but plant is establishing branching structure
Water consistently (1-2 inches weekly); stake if necessary; avoid heavy pruning; apply 2-3 inches of mulch
Vegetative Growth
Months 6-24Shrub develops fuller branching and denser canopy; glossy green leaves are prominent; flowering has not yet occurred or is minimal
Light pruning to encourage bushiness; continue regular watering; fertilize with balanced slow-release fertilizer in spring
Flowering
Spring (March-May), typically 4-8 weeksClusters of small, tubular creamy-white flowers appear throughout the canopy; flowers are fragrant, especially in evening and warmer weather
Do not prune heavily during flowering; enjoy the fragrance; deadheading is optional as flowers are attractive and give way to seed pods
Seed Pod Development
Summer through fall (June-October)After flowers fade, decorative orange-brown seed capsules develop, adding visual interest; foliage remains dense and glossy
Can leave pods for ornamental value or prune to maintain shape; pods may self-seed if conditions are moist
Dormancy/Winter
November-FebruaryGrowth slows significantly; foliage remains evergreen and attractive; some leaf drop may occur in zone 8 during cold spells
Reduce watering in cooler zones; provide wind protection in zone 8; avoid fertilizing; pruning can be done late winter if needed
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray with horticultural oil or neem oil in early spring; prune heavily infested branches; encourage beneficial insects
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Spray with insecticidal soap or neem oil; isolate affected plants; wipe leaves with alcohol-dipped cloth for light infestations
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Increase humidity with regular misting; spray with water to dislodge; use miticide if severe; ensure good air circulation
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Yellow sticky traps; spray with insecticidal soap; neem oil applications; remove heavily infested leaves
Uses
Ornamental Screening & Hedging
HouseholdJapanese Pittosporum is excellent for creating privacy screens, hedges, and windbreaks due to its dense, evergreen foliage and ability to tolerate shearing. Its compact, rounded form makes it ideal for formal or informal landscape designs. [source]
Floral Arrangements
CraftThe fragrant spring flowers and attractive foliage make excellent additions to fresh flower arrangements. The glossy green leaves provide long-lasting greenery, and cut branches can last 1-2 weeks in water. [source]
Fragrance & Garden Ambiance
HouseholdThe intensely fragrant flowers, especially in warm weather and evening hours, provide natural perfume to the garden. The sweet, spicy-orange scent is valued by gardeners planting near seating areas. [source]
Wildlife Support
WildlifeFlowers attract bees and other pollinators, while developing seed pods provide food and shelter for birds. The dense evergreen foliage offers year-round shelter for beneficial insects and wildlife. [source]
Topiary & Formal Design
HouseholdJapanese Pittosporum responds well to pruning and shaping, making it suitable for topiary, espalier, and formal garden designs. Its slow growth rate makes it manageable for these applications. [source]
Harvest Tips
Not harvested for culinary/medicinal purposes. For ornamental use, cut branches of flowers for arrangements in spring. Cut seed pods for dried arrangements when they turn orange-brown (summer-fall). Prune as needed for shape, preferably in late winter to early spring.
Fun Facts
- 🌱 The name 'Pittosporum' comes from Greek words 'pitta' (pitch) and 'sporum' (seed), referring to the sticky pitch-like coating on the seeds that helps them stick to animals for dispersal.
- 🌱 Japanese Pittosporum flowers release their strongest fragrance in warm weather and at dusk, making evening garden time particularly aromatic and pleasant.
- 🌱 The shrub is native to Japan, China, and other parts of East Asia, and has become a landscape staple in Mediterranean climates and warm temperate regions worldwide due to its reliability and low maintenance.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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