Pencil pines give you height without width, which is why they turn up flanking driveways, framing entrances and screening a neighbour's window from a garden bed barely a metre deep. They are tough, drought hardy and need almost no pruning to hold their shape. They also have one specific weakness worth understanding before you plant a row of them.
Quick facts
| Detail | What to expect in Australia |
|---|---|
| Botanical name | Cupressus sempervirens, the Italian cypress |
| Mature size | 5-8 m tall, only 0.8-1.2 m wide |
| Position | Full sun. Will thin and lean in shade |
| Soil | Free draining above all. Tolerates poor, rocky and alkaline ground |
| Water | Weekly while establishing, then very drought hardy |
| Frost | Hardy. Handles cold inland winters well |
| Growth rate | Moderate, roughly 300-500 mm a year |
| Best climates | Adelaide, Melbourne, Perth, Canberra, inland NSW and Victoria |
A note on the name
In Australian nurseries "pencil pine" almost always means Cupressus sempervirens, the Italian cypress. Confusingly, Tasmania has a native conifer also called pencil pine, Athrotaxis cupressoides, which grows in alpine country and is not sold as a garden plant. If you are shopping for the narrow upright tree used in formal gardens, the Italian cypress is what you want.
Where pencil pines grow well in Australia
- Adelaide, Melbourne and Perth suit them almost perfectly. Hot dry summers, mild winters and free-draining soils are exactly what a Mediterranean cypress evolved for.
- Inland NSW, Victoria and the Riverina grow excellent pencil pines, and they handle frost without difficulty.
- Canberra and the Southern Highlands are well within their tolerance.
- Sydney grows them successfully in an open sunny position with good drainage.
- Brisbane and the subtropics are the weak point. Humid summers encourage cypress canker, the disease that kills branches and ruins the column. They can be grown here, but expect more problems and choose an open airy position.
- Tropical Queensland and the Top End are unsuitable. Too warm and too humid.
Choosing the right variety
| Variety | Size | Notes |
|---|---|---|
| Nitschke's Needles | 5-6 m tall, 1 m wide | Fine dense green foliage, very uniform. The standard choice for formal rows |
| Swane's Golden | 4-5 m tall, 0.8 m wide | Golden-yellow foliage, slower and slightly smaller. Australian-bred and widely grown |
Green or gold?
Nitschke's Needles is the one to use where you want a crisp architectural line - a driveway avenue, a pair either side of a doorway, or a repeated rhythm along a fence. Its uniformity is the point.
Swane's Golden is an Australian selection with gold-tipped foliage that lifts a dark corner or contrasts against green hedging. It grows more slowly and stays a little shorter, which makes it easier to manage in a smaller garden. The gold colour is strongest in full sun.
How to plant
- Plant in autumn or early spring so roots establish before summer heat.
- Check drainage first. Pencil pines are drought hardy but will not tolerate wet feet. On heavy clay, plant on a raised mound.
- Choose full sun. Shade produces a sparse, uneven column that leans towards the light.
- Space them properly. One and a half to two metres apart for a formal row; closer than this and airflow drops, which invites canker.
- Do not over-enrich the soil. These are Mediterranean plants that perform better in lean ground than in rich beds.
- Stake young trees in windy sites for the first year only, then remove the stake so the trunk strengthens.
Ongoing care
Watering
Water deeply once a week through the first summer while roots establish. After that pencil pines are genuinely drought tolerant and need water only in extended dry spells. Overwatering, particularly in heavy soil, is far more likely to kill one than drought.
Feeding
Very little is needed. A light application of a balanced fertiliser in early spring is plenty. Heavy feeding produces soft growth that is more susceptible to disease and can spoil the tight columnar form.
Pruning
The great appeal of a pencil pine is that it holds its shape without pruning. Trim only to tidy the odd wayward shoot, and always cut back to green growth - like most conifers, cypress will not reshoot from bare brown wood, so cutting too hard leaves a permanent gap. Some growers tie the column loosely with garden twine in exposed sites to stop snow or heavy rain splaying the top.
Common problems and fixes
- Cypress canker is the main threat, and the reason pencil pines struggle in humid regions. It shows as individual branches turning brown and dying while the rest stays green, often with resin bleeding from the stem. There is no cure. Cut affected branches well back into healthy wood, sterilise your tools between cuts, and remove badly affected trees before the disease spreads down a row.
- Brown patches through the column in dry weather often mean spider mite. Hose the foliage thoroughly and treat with horticultural oil.
- Thinning or leaning growth means not enough sun. Pencil pines need an open position to stay dense and upright.
- Splayed or opened top follows heavy rain or wind. Tie loosely with soft twine to pull it back together.
- Sudden browning of the whole tree usually points to root rot from waterlogged soil rather than disease in the canopy.
Using pencil pines in the garden
Their value is vertical line in a narrow footprint. A pair either side of an entrance frames it formally. A repeated row down a driveway creates rhythm and a sense of arrival. Planted 1.5 metres apart along a boundary they screen a two-storey neighbour without stealing the garden bed, which few other screening plants manage. They also suit Mediterranean and modern minimalist gardens, and sit naturally alongside olives, lavender and rosemary in a low-water planting.
Frequently asked questions
How tall do pencil pines grow in Australia?
Typically five to eight metres, with Swane's Golden staying nearer four to five. Width stays under about 1.2 metres, which is what makes them useful in narrow spaces. Growth is moderate at roughly 300 to 500 millimetres a year.
How far apart should I plant pencil pines for a screen?
One and a half to two metres apart. Planting closer looks denser sooner but reduces airflow between trees, which increases the risk of cypress canker - the disease most likely to ruin a formal row.
Will pencil pines grow in Brisbane?
They can, but humid subtropical summers favour cypress canker, so they are more trouble here than in Adelaide, Melbourne or Perth. If you plant them in Brisbane, choose the most open airy position you have and space them generously.
Why has one branch gone brown?
A single branch browning while the rest stays green is the classic sign of cypress canker. Cut it out well back into healthy wood, sterilising your secateurs between cuts. There is no chemical cure, so removing affected wood promptly is the main defence.
Can I prune a pencil pine to keep it shorter?
Only lightly. Cypress will not reshoot from bare brown wood, so cutting back hard leaves a permanent bare patch. Trim only into green growth, and if you need a shorter tree choose Swane's Golden, which naturally matures around four to five metres.
Are pencil pines drought tolerant?
Very. Once established they need water only during extended dry periods, which makes them a good choice for low-water and Mediterranean-style gardens. Poor drainage is a far bigger risk to them than dry soil.
Ready to plant?
We grow both Nitschke's Needles and Swane's Golden pencil pines, in sizes from young plants through to advanced specimens for instant structure. Browse our conifers collection, or the hedging and screening range if you are planting a boundary.
Working with a narrow space? Our guide to fast-growing screening trees for privacy compares the alternatives, and growing olive trees in Australia covers another Mediterranean plant that pairs naturally with them.
