What hardiness zones is Wollemia nobilis suitable for?

Wollemia nobilis is suitable for USDA hardiness zones 8, 9, 10.

What are the sun requirements for Wollemia nobilis?

Wollemia nobilis requires Full Sun.

How much water does Wollemia nobilis need?

Wollemia nobilis has Medium water needs.

1 / 9

Coniferous Trees

Wollemia nobilis

Wollemi pine

Araucariaceae

Single canyon in Wollemi National Park, Blue Mountains, New South Wales, Australia; approximately 2,000 feet (600 m) elevation

At a Glance

TypeTree

HabitUpright

FoliageEvergreen

Height20–40 feet (6–12 m) in cultivation

Width10–15 feet (3–4.6 m)

Maturity30 years

Growing Zones

USDA Hardiness Zones

8 - 10

Zone 8

Zone 9

Zone 10

These zones indicate the coldest temperatures this plant can typically survive.

Frost Tolerancehardy

Key Features

Deer Resistant

Container Friendly

Maintenancelow

Overview

Wollemia nobilis is a large, rare evergreen conifer in the family Araucariaceae, discovered in 1994 in a remote canyon of the Blue Mountains, New South Wales, Australia — the sole surviving species of a genus previously known only from fossils dating to approximately 200 million years ago. Trees reach 65–130 feet (20–40 m) in the wild; in cultivation, typical plants reach 20–40 feet (6–12 m) tall and 10–15 feet (3–4.6 m) wide over several decades, with growth rate of 12–24 inches (30–60 cm) per year under good conditions. The habit is distinctly multi-stemmed from the base with multiple leaders rather than a single trunk. Bark is soft, spongy, and knobby — dark brown and deeply textured, one of the most distinctive bark textures of any cultivated conifer. Leaves are flat, strap-like, 1–2 inches (2.5–5 cm) long, arranged in two ranks on the shoots, bright green above, paler beneath with two stomatal bands. New growth flushes are cream-colored in spring, turning green. Female cones are large, globular, 2–4 inches (5–10 cm). The wild population numbers fewer than 100 trees and the species is classified as Critically Endangered on the IUCN Red List. Commercially propagated plants have been widely distributed since 2005 to support conservation awareness.

Native Range

Wollemia nobilis is native to a single population in a remote canyon in Wollemi National Park, Blue Mountains, New South Wales, Australia, at approximately 2,000 feet (600 m) elevation. The entire known wild population consists of fewer than 100 mature trees across a handful of adjacent groves. It is not native to the Pacific Northwest.

Suggested Uses

Planted as a specimen and botanical focal point in protected, well-drained garden positions, spaced 10–15 feet (3–4.6 m) from adjacent plants. The unique knobby bark texture, cream new growth flushes, and extraordinary conservation status make this a notable subject in conifer collections and botanical gardens. Best suited to sheltered, well-drained west-side Pacific Northwest conditions with protection from severe frost.

How to Identify

Wollemia nobilis is identified by its multiple stems from the base; unique soft, spongy, dark brown knobby bark resembling bubble wrap; flat, strap-like leaves 1–2 inches (2.5–5 cm) long arranged in two ranks on the shoots; cream-colored new growth flushes in spring; and large globular female cones 2–4 inches (5–10 cm). The combination of multi-stemmed habit, distinctive knobby bark, and two-ranked flat leaves is unique among cultivated conifers. Related to Araucaria but lacks that genus's spine-tipped leaves.

Appearance

Size & Dimensions

Height20' - 40'

Width/Spread10' - 15'

Reaches mature size in approximately 30 years

Colors

Flower Colors

yellow green

Foliage Colors

bright green

cream

Fall Foliage Colors

no change

Bloom Information

Bloom Period

~4 weeks

Spring

Male and female cones are on the same tree (monoecious). Male cones are long, cylindrical, pendant, 2–4 inches (5–10 cm), releasing pollen in late spring. Female cones are globular, 2–4 inches (5–10 cm) in diameter, green ripening to brown, disintegrating on the tree at maturity to disperse winged seeds. Trees in cultivation begin producing cones at 10–15 years of age.

Detailed Descriptions

Flower Description

yellow-green (male cones)

Foliage Description

bright green above, paler below with stomatal bands; cream-colored on new growth flushes

Growing Conditions

Sun Requirements

Full Sun

Partial Shade

Requires 4-12 hours of direct sunlight daily

• Full Sun: 6+ hours of direct sunlight

• Partial Shade: 3-6 hours of direct sunlight

• Full Shade: Less than 3 hours of direct sunlight

Soil Requirements

pH Range5.5 - 7.0(Neutral)

357912

Soil Types

loamsand

Drainage

well drained

Water & Climate

Water Needs

Medium

Frost Tolerance

hardy

Time to Maturity

20–40 years

Care & Maintenance

Care Guide

Water weekly during the first two growing seasons; established trees tolerate short dry periods but prefer consistent moisture. Best in well-drained, moderately fertile soil. Tolerates partial shade in youth but grows best in full sun as an adult. Hardy to approximately 14°F (−10°C); established trees in Pacific Northwest west-side conditions generally survive winter; protect young plants from frost until established. Root rot in waterlogged soils is the most common cultural failure. The wild population is susceptible to Phytophthora cinnamomi; commercial propagules are certified disease-free.

Pruning

No pruning required. The multi-stemmed habit develops naturally. Do not attempt to train to a single trunk. Remove dead or damaged stems at any time.

Maintenance Level

low

Container Growing

✓ Suitable for container growing

Minimum container size: 15 gallons

⚠️ Toxicity Warning

Non-toxic