Pittosporum crassifolium

Landscaping Uses

This versatile native is especially popular in coastal landscapes, where its tolerance of wind and salt spray makes it invaluable. Pittosporum crassifolium can be used as a trimmed hedge, informal screen, or shelterbelt. It also works well as a specimen shrub in native gardens, or as a background plant to highlight lower-growing species. Because of its dense foliage and rounded form, it provides year-round interest and makes an excellent wildlife-friendly addition to the garden.

Hedge Spacing

When used for hedging, Pittosporum crassifolium should be planted 40–50 cm apart. This spacing helps the plants form a dense, even barrier. Closer spacing promotes faster fill-in and encourages more upright growth. Wider spacing may result in a looser, more open hedge, which can be desirable in some informal designs.

Growth Rate

Karo has a moderate growth rate. In good growing conditions—plenty of sunlight, well-drained soil, and consistent moisture—it can reach its full size within 10 to 15 years. Growth may slow in dry or windy environments, though the plant still performs well. It is commonly trimmed to maintain a smaller, more compact shape when used as a hedge.

Growing Conditions

This species thrives in full sun or light shade and prefers soils that are free-draining. Pittosporum crassifolium is highly tolerant of coastal conditions, wind, and dry spells once established. It can also handle moderate frost. Avoid planting it in areas with poor drainage, as it does not tolerate waterlogged soils.

Flowers and Features

The spring flowers are one of the plant’s distinguishing features. They are small, rich in colour, and subtly fragrant, with a dark red to purple hue that adds seasonal interest. The seed capsules that follow are sticky and can cling to clothing or animals, helping with natural dispersal. Its leaves, being tough and leathery, are naturally resistant to harsh environmental conditions.

Common Problems and Maintenance

This plant is generally low-maintenance. Occasional pruning will keep it tidy and encourage dense growth. Pittosporum crassifolium can occasionally be affected by pests like psyllids, though issues are rare in healthy, established plants. Applying mulch around the base helps to suppress weeds and retain soil moisture, especially in drier regions.

Buying Pittosporum crassifolium in NZ

The Plant Company offers strong, healthy Pittosporum crassifolium plants for sale across New Zealand. Our plants are nursery-grown to high standards and are carefully packaged to ensure they arrive in great condition. Whether you’re planting a coastal hedge or enhancing a native garden, this shrub is a proven performer.