Adenanthos — the Woolly Bush — is one of those Australian native plants that rewards you every time you brush past it. The foliage is extraordinarily soft to the touch: fine, needle-like leaves covered in a pale, silky down that gives the plant its common name and its distinctive silver-grey colour. It is genuinely tactile in a way that very few garden plants are, and the sensory experience of running your hand through a Woolly Bush is almost universally described as irresistible. That alone makes it worth growing.
But Woolly Bush is much more than a textural curiosity. Adenanthos sericeus and its relatives are tough, adaptable Australian natives from the Proteaceae family — the same family as Proteas, Banksias, and Grevilleas — native primarily to the coastal sandplains of south-western Western Australia, where they have evolved to thrive in poor, sandy, freely draining soils, coastal wind, salt spray, and long dry summers. That evolution translates directly to garden performance: once established, Adenanthos is genuinely drought-tolerant, coastal-hardy, and low-maintenance in the way that only a plant adapted to genuinely challenging conditions can be.
Beyond the standard silver-grey species, our range includes varieties that extend Adenanthos into new colour territory — the warm bronze tones of Bronze Glow, the ultra-compact habit of Baby Woolly Bush and Silver Streak for small spaces and pots, the groundcover spread of Coral Carpet for rockeries and garden edges, and the upright, hedging-optimised form of Cunninghamii Lighthouse. All share the signature softness, drought-hardiness, and coastal toughness of the genus.
One of the most popular seasonal uses of Adenanthos in Australian gardens is as a living native Christmas tree. A large specimen of the standard sericeus variety in a generous pot, decorated with lights and ornaments, makes an extraordinary native alternative to both cut imported trees and plastic substitutes — and unlike a cut tree, it can be returned to the garden after the festive season. Online Plants supplies Adenanthos in a range of pot sizes, including larger specimens suited to this purpose.
An important note on fertilising Adenanthos — phosphorus sensitivity
Adenanthos belongs to the Proteaceae family and shares a critical care requirement with other members of this family: it is highly sensitive to phosphorus. Most standard garden fertilisers, slow-release fertilisers, and particularly animal manures contain elevated phosphorus levels that can damage or kill Proteaceae plants including Adenanthos. Always use a fertiliser specifically labelled as suitable for Australian native plants or Proteaceae — these are formulated with low or no phosphorus. One light application of a native-specific slow-release fertiliser in spring is all that is needed. This is one of the most common causes of Adenanthos failure in Australian gardens and it is entirely avoidable.
Our 6 Adenanthos varieties — expert descriptions from our horticultural team
Best for: Feature shrub, screen, hedge, Christmas tree, coastal
Height: 1–5m h (typically 2–3m in gardens)
Foliage: Silver-grey, fine needle-like, extraordinarily soft
Flower: Small coral-red, year-round
Key trait: The original — best for Christmas tree and feature planting
The original and most iconic Woolly Bush — a tall, upright, evergreen native shrub from the coastal sandplains of south-western Western Australia. Growing to 1–5m depending on conditions (typically 2–3m in garden cultivation), it forms a dense, bushy crown of extraordinary fine silver-grey foliage. Small coral-red flowers appear at the stem tips throughout much of the year, particularly in spring, and attract nectar-feeding birds including honeyeaters. Our horticultural team's first choice for feature planting, native screens, low-phosphorus coastal gardens, and — most distinctively — as a living Australian Christmas tree in a large container. Tolerates coastal salt spray, full sun to partial shade, and sandy to loamy soils. The foliage of some individuals can cause mild skin sensitivity in susceptible people — wear gloves when pruning if you have sensitive skin.
Best for: Small gardens, pots, low hedge, borders, coastal
Height: 1–1.5m h x 1m w
Foliage: Silver-grey, fine, soft
Flower: Small, inconspicuous
Key trait: Compact form — tidiest garden habit
A compact, cultivated variety of Woolly Bush growing to around 1–1.5m in height with a naturally bushy, well-branched habit. Silver Streak has the same signature silver-grey, fine foliage as the standard species but in a more contained form that suits smaller gardens, pot culture, and formal low hedging. Its tidy growth habit reduces the need for pruning compared to the standard species, and it is an excellent choice for gardeners who want the silvery foliage effect in a more manageable size. Performs well in coastal conditions and is tolerant of salt spray and sandy soils. Available from Online Plants.
Best for: Pots, balconies, courtyard feature, small garden
Height: To 1.5m h x 0.8m w
Foliage: Silver-grey, fine, soft
Flower: Small coral, intermittent
Key trait: Best Adenanthos for containers and small spaces
An eye-catching, compact-growing selection of Adenanthos with the same fine silver-grey foliage as the standard species but in a smaller, more upright frame growing to around 1.5m tall. Baby Woolly Bush is particularly popular as a pot plant, patio specimen, and feature plant for courtyard gardens and balconies where the scale of the standard sericeus would be too large. Its fine, densely branched habit and soft texture make it a natural companion to other fine-foliaged Australian natives including Grevillea, Leptospermum, and Lomandra. Available from Online Plants.
Best for: Colour contrast borders, rockeries, native mixed planting, pots
Height: 1–1.5m h x 1m w
Foliage: Bronze-green, fine, soft silky
Flower: Small, inconspicuous
Key trait: Only bronze-toned Adenanthos — striking colour contrast
The most visually distinctive variety in our Adenanthos range — Bronze Glow produces the same soft, silky, fine foliage as the standard Woolly Bush but in warm bronze-green tones rather than the usual silver-grey. This colour distinction makes Bronze Glow a standout contrast plant alongside the silver forms, and it provides a unique warm-toned option in the native garden palette that is difficult to match with other plants at this scale. Growing to approximately 1–1.5m in a compact mounded habit, it suits borders, rockeries, mixed native planting schemes, and pots where foliage colour contrast is the design intent. Available from Online Plants.
Coral Carpet
Adenanthos 'Coral Carpet'
Best for: Groundcover, slopes, rockery, coastal bed edging
Height: 30–50cm h x 1–1.5m w
Foliage: Silver-green, soft, mat-forming
Flower: Small red, intermittent
Key trait: Only spreading groundcover in the range
A prostrate, spreading form of Adenanthos — the only low-growing groundcover variety in our range — from the Stirling Ranges of Western Australia. Coral Carpet grows to just 30–50cm in height but spreads up to 1.5m wide, forming a dense, mat-like cover of soft silver-green foliage. Intermittent small red flowers attract birds and pollinators. This is the variety our team recommends for covering slopes, softening garden edges, filling rockery spaces, and creating low-maintenance groundcover in coastal and native gardens where traditional lawn is impractical. A prostrate form of Adenanthos from the Stirling Ranges. Tolerates coastal conditions well.
Cunninghamii Lighthouse
Adenanthos cunninghamii 'Lighthouse'
Best for: Formal hedging, coastal screen, border definition
Height: 1–2m h x 1m w
Foliage: Silvery-green, fine, dense
Flower: Small, pollen-rich, bird-attracting
Key trait: Best for hedging — most structured habit
A different species to the sericeus varieties — Adenanthos cunninghamii Lighthouse is a versatile, dense, upright variety growing to approximately 1–2m with fine silvery-green foliage. Its strongly upright habit and dense branching make it the most suitable Adenanthos in our range for formal hedging, border definition, and coastal screening where a more structured, architectural form is required than the naturally relaxed sericeus. Note: minimum order of 3 plants in 14cm pots applies for this variety. Tolerates salt spray, full sun, and well-drained coastal soils. Attracts birds with small pollen-rich flowers.
How to grow Adenanthos Woolly Bush in Australia — expert care guide
Adenanthos is one of the most forgiving native shrubs available for Australian gardens once established. Here is our complete care guide:
• Climate: Adenanthos performs best in Mediterranean and cool-temperate climates — the southern half of Australia is its natural zone, including Victoria, South Australia, southern Western Australia, Tasmania, the ACT, and cool-temperate parts of New South Wales. It prefers dry summers and is less suited to the humidity and summer rainfall of subtropical and tropical Queensland. However, with excellent drainage it can perform well in most Australian temperate zones.
• Position: Full sun produces the most compact, silvery growth. Adenanthos tolerates partial shade but can become leggy in low-light positions — prune more regularly if growing in shade to maintain a bushy habit. Coastal positions with salt spray and strong wind are well-tolerated by all varieties in our range.
• Soil: Free-draining soil is essential. Adenanthos is native to coastal sandplains and its roots are adapted to dry, fast-draining, relatively infertile conditions. It will not tolerate waterlogged or consistently wet soil. Sandy, loamy, sandy-loam soils are ideal. In clay-heavy soils, raise the planting bed or add grit to ensure adequate drainage. Soil pH of 5.5–7.0 (slightly acidic to neutral) is suitable.
• Watering: Water regularly for the first 3–4 months after planting to establish roots. Once established, Adenanthos is genuinely drought-tolerant and survives on natural rainfall across most of southern Australia. Avoid overwatering — the most common cause of failure is too much water, not too little. In containers, water when the top 2–3cm of the potting mix is dry, then water thoroughly and allow to drain completely.
• Fertilising — CRITICAL for Adenanthos: ALWAYS use a low-phosphorus, native-specific fertiliser. Standard garden fertilisers, slow-release granules with high phosphorus, and particularly animal manures can seriously damage or kill Adenanthos and other Proteaceae plants. A single application of a slow-release native plant food in spring is all that is needed — do not over-fertilise. Brands specifically formulated for Australian natives (Osmocote Native, Baileys Natives Plus) are recommended.
• Pruning: Adenanthos requires minimal pruning. A light tip-prune in spring after the main flowering period helps maintain a compact, bushy habit and prevents legginess. For a formal hedge, trim in spring. The standard sericeus variety tolerates quite severe pruning and will reshoot well from old wood — making it suitable for hedging and topiary with regular maintenance. Always leave a few healthy buds below each cut. Winter pruning is also acceptable for harder shaping.
• Christmas tree use: For use as a living Christmas tree, plant a mature standard sericeus specimen in the largest pot that suits your space — minimum 30cm diameter. Use a native potting mix. Water regularly through the warm summer months (which coincide with the Australian Christmas period), keep in full sun, and apply a single dose of native slow-release fertiliser in October before bringing indoors. After the festive season, move back outdoors to a full-sun position and resume normal care.
• Foliage skin sensitivity note: The foliage of some Adenanthos sericeus individuals can cause mild skin irritation or an allergic reaction in susceptible people. This is not universal and many gardeners work with Adenanthos without any reaction, but our team recommends wearing gloves when pruning or handling the plant extensively, particularly for people with known skin sensitivities. The plant is non-toxic to pets and children when not ingested in large quantities.
• Pests: Adenanthos is generally trouble-free. In Western Australia, Tea Tree Web Moth (Comostola laesaria) can infect plants in some areas. In eastern Australia this is rare. Aphids occasionally appear on new growth — treat with insecticidal soap if numbers build. Scale insects can appear on older stems — treat with white oil. Otherwise, Adenanthos is remarkably pest and disease resistant.
Why buy Adenanthos from Online Plants?
• 30-day guarantee to grow on every plant • Australia's first and largest online nursery — 20+ years native plant delivery expertise • 6 Adenanthos varieties covering every garden size, use, and colour preference • Delivery to VIC, NSW, QLD, SA and ACT — metropolitan and regional areas • No minimum order (note: Cunninghamii Lighthouse has a minimum of 3 plants in 14cm pots) • Free garden design consultation — call 0428 110 584 or email store@onlineplants.com.au
Frequently Asked Question - FAQs
What is Adenanthos and why is it called Woolly Bush?
Adenanthos is a genus of approximately 33 species of evergreen shrubs in the Proteaceae family — the same family as Banksias, Proteas, and Grevilleas. They are native primarily to Australia, with most species found in south-western Western Australia. The common name 'Woolly Bush' comes from the extraordinarily soft, fine, needle-like foliage that covers the plant — the individual leaves are coated in tiny soft hairs that give the plant an almost wool-like texture that is irresistibly soft to the touch. The most widely grown species is Adenanthos sericeus, where 'sericeus' is Latin for 'silky' — a direct reference to this distinctive foliage texture.
Can Adenanthos be used as a Christmas tree in Australia?
Yes — Adenanthos sericeus (standard Woolly Bush) is one of the best native Australian Christmas tree alternatives available. Its upright, densely branched form naturally resembles a conifer in profile, and the fine silver-grey foliage holds lights and decorations beautifully. When grown in a large container (minimum 40cm diameter) it can be brought indoors or onto a covered patio during the festive season, decorated, and then returned to the garden afterwards. Our horticultural team recommends: use a native-specific potting mix, ensure the pot has good drainage, keep in full sun when outdoors, water regularly in summer, and apply native slow-release fertiliser in October before the Christmas period. Unlike cut trees, a container-grown Adenanthos Christmas tree can last many years with proper care.
Why is low-phosphorus fertiliser so important for Adenanthos?
Adenanthos belongs to the Proteaceae family, which evolved in Australia's naturally phosphorus-poor soils over millions of years. Plants in this family have developed specialised roots (proteoid or cluster roots) that are highly efficient at extracting phosphorus from low-phosphorus environments. When these plants receive standard fertilisers containing high phosphorus levels, the roots are overwhelmed — phosphorus accumulates at toxic levels and damages or kills the plant. This is not unique to Adenanthos — Banksias, Grevilleas, Proteas, and Waratahs all share this sensitivity. Always use a fertiliser specifically formulated for Australian native plants, which will state 'low phosphorus' on the label. One application per year in spring is sufficient.
How fast does Adenanthos grow in Australian gardens?
Adenanthos sericeus is considered a moderately fast-growing native shrub. In suitable conditions — full sun, well-draining soil, regular watering during establishment — it can reach its full height of 2–3m within 5 years. The compact cultivars (Silver Streak, Baby Woolly Bush, Bronze Glow) are slower, typically reaching their mature size of 1–1.5m in 3–4 years. Growth rate is directly influenced by drainage quality and sun exposure: plants in shaded or waterlogged positions grow slowly and tend to become leggy. Regular tip pruning in the first few years encourages dense, bushy growth rather than a tall, open framework.
Is Adenanthos suitable for coastal gardens in Australia?
Absolutely — Adenanthos is among the most reliable coastal shrubs available for Australian gardens. Native to the coastal sandplains of south-western Western Australia, it handles salt spray, coastal wind, sandy soils, and the exposed conditions of beachside gardens without difficulty. All six varieties in our range perform well in coastal conditions. Coral Carpet is particularly effective as a low groundcover on coastal slopes and garden edges. Cunninghamii Lighthouse provides formal hedging structure in exposed coastal positions. The standard sericeus and Silver Streak are excellent for mixed coastal native plantings and windbreaks. The only coastal condition to avoid is poor drainage — do not plant in positions where water pools after rain.
