Victorian Box (Pittosporum undulatum)

Victorian Box

Pittosporum undulatum

Its glossy undulating leaves carry a sweet citrusy scent when crushed. Evergreen shrub or small tree; common names: Victorian Box, Sweet Pittosporum.

Partial sun
1–2/week
Beginner
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Plant Needs

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Sunlight Full sun to partial shade; tolerates coastal wind exposure; avoid prolonged harsh midday sun in hot climates
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Watering Water deeply when the top 5 cm of soil dries out; avoid overwatering to prevent root rot
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Temperature Hardy to 5°C; prefers temperate to warm climates; protect young plants from frost damage
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Characteristics

  • Leaf: Glossy leathery foliage with undulating margins; elliptical to lanceolate, dark green above, pale green beneath
  • Flower: Small creamy-white clustered panicles with a strong sweet fragrance
  • Fruit: Woody brown capsules splitting to reveal bright orange-red seeds post-flowering
  • Stem: Slender gray-brown bark with dense, compact branching habit
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Care Guide

Watering

Keep soil consistently moist but not waterlogged; increase frequency during hot, dry spells

Fertilization

Apply balanced slow-release fertilizer once in early spring. Avoid over-fertilizing to prevent excessive soft growth

Eggshell powder top dressing:Crush dried eggshells to fine powder; sprinkle 1 tbsp per plant every 3 months; work lightly into topsoil to improve soil structure and boost calcium levels
Pruning
  • Prune immediately after flowering to maintain desired shape and remove dead or damaged branches
  • Thin dense inner branches to improve airflow and light penetration
  • Trim overgrown shoots in late winter to encourage compact, bushy growth
  • Remove suckers at the base to prevent unwanted spreading
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Contains saponins; toxic if ingested, may cause vomiting, diarrhea, lethargy

Humans: Ingestion of large quantities may cause mild gastrointestinal upset including nausea and abdominal pain

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental hedge or specimen tree; fragrant flowers support pollinators; limited traditional medicinal use by Indigenous Australian communities