Daisy Bush
Brachyglottis greyi
A silver-leaved coastal shrub daisy valued for drought tolerance and showy yellow daisy heads. Thrives in full sun and sharp drainage; superb in coastal and gravel gardens. coastal .
Plant Description
Evergreen shrub with silver-felted leaves; yellow composite heads; ideal for dry, sunny, coastal sites.
Key Identification
Silvery, felted leaves that reflect light and salt‑laden winds, and bright yellow daisies; excels in hot, dry, exposed coastal conditions with sharp drainage.
Quick Facts
| Scientific Name | Brachyglottis greyi |
|---|---|
| Family | Asteraceae |
| Form | Silver-leaved coastal shrub daisy |
| Light | Full sun |
| Soil | Lean, free-draining; coastal sands/gravel |
| Water | Low once established |
| Height | 0.3-2 m (compact shrub) |
| Spread | 40-120 cm across |
| Water Needs | Low to moderate; free-draining soils |
| Frost Tolerance | High - tolerant of severe freezes |
| Salt Tolerance | Moderate to high (coastal species) |
| Growth Rate | Slow to moderate |
| Lifespan | Long-lived perennial |
Climate Suitability
Regional Adaptability
Brachyglottis greyi thrives in New Zealand's temperate coastal climate with excellent tolerance to maritime exposure, salt spray, and strong winds. This hardy coastal shrub is naturally adapted to the mild, oceanic climate of the southern North Island, where it experiences moderate temperatures year-round and regular rainfall. The species performs best in areas with good air circulation and protection from extreme humidity, preferring the well-drained, rocky coastal conditions of its natural habitat. In cultivation, it succeeds across a wide range of New Zealand's climatic zones, from warm northern regions to cooler southern areas, provided it receives adequate drainage and protection from waterlogged soils.
| City | Climate Suitability |
|---|---|
| Whangārei | Suitable |
| Auckland | Suitable |
| Hamilton | Suitable |
| Tauranga | Suitable |
| Rotorua | Suitable |
| Gisborne | Suitable |
| New Plymouth | Suitable |
| Napier | Suitable |
| Whanganui | Suitable |
| Palmerston North | Suitable |
| Wellington | Suitable |
| Nelson | Suitable |
| Christchurch | Suitable |
| Dunedin | Suitable |
| Invercargill | Suitable |
Habitat
Natural Distribution
Brachyglottis greyi is endemic to the southern North Island of New Zealand, with a naturally restricted distribution from near Flat Point south to the mouth of the Orongorongo River. This coastal specialist primarily inhabits rocky outcrops, coastal bluffs, and cliff faces where it is exposed to salt spray and maritime winds. The species may extend inland along river gorges and suitably exposed bluff habitats that provide similar well-drained, rocky conditions. Its natural habitat consists of free-draining rocky soils derived from coastal limestone and greywacke formations, where water drains quickly and plants are adapted to periodic drought stress and constant exposure to wind.
Conservation Status
Current Threats and Protection
Brachyglottis greyi is currently classified as "At Risk - Declining" under New Zealand's threat classification system, representing a deterioration from its previous status of "At Risk - Naturally Uncommon" between 2012-2017. This decline reflects growing pressures on its restricted coastal habitat from coastal development, recreational activities, and climate change effects. The species' limited natural distribution makes it particularly vulnerable to habitat modification and disturbance. Conservation priorities include protecting remaining coastal bluff habitats, managing human impacts in sensitive areas, and maintaining genetic diversity through ex-situ conservation efforts. The species benefits from occurrence within some protected coastal reserves, though continued monitoring and active management are essential for its long-term survival.
How to Grow
Cultivation Requirements
Brachyglottis greyi is an excellent choice for coastal gardens and exposed sites, thriving in full sun and well-drained soils. Plant in raised beds or sloping sites that ensure rapid drainage, as the species is highly susceptible to root rot in waterlogged conditions. Use a gritty, free-draining soil mix with added sand or gravel, avoiding heavy clay soils that retain moisture. The plant tolerates poor, lean soils and actually performs better in nutrient-poor conditions that mimic its natural rocky habitat. Water sparingly once established, allowing soil to dry between waterings, and avoid overhead irrigation which can promote fungal problems. Position where plants receive good air circulation and protection from excessive humidity, making it ideal for windy coastal locations where other plants may struggle.
Planting Guide
Best Planting Practices
Plant Brachyglottis greyi in early spring in a sunny, well-drained location, ideally in raised, gritty beds or coastal sands to ensure sharp drainage. Water thoroughly at planting and maintain consistent moisture during the establishment period. Trim lightly after flowering to keep the plant compact and encourage dense growth. Avoid planting in rich, wet soils, which can lead to root rot.
Ecological Role
Environmental Benefits
Brachyglottis greyi plays an important ecological role as a dominant shrub in coastal bluff and rocky outcrop communities. Its bright yellow flowers, blooming from December to March, provide essential nectar for native bees, flies, and other insects during the summer months when few other coastal plants are in flower. The dense, spreading growth habit offers valuable shelter and nesting sites for coastal birds and provides important habitat structure in otherwise exposed environments. The plant's extensive root system helps stabilize soil on steep coastal slopes and cliff faces, reducing erosion in these vulnerable coastal environments. Wind-dispersed seeds allow the species to colonize new rocky sites and maintain connectivity between fragmented coastal habitats, contributing to the resilience of coastal plant communities.
Uses
Traditional and Modern Applications
Brachyglottis greyi is highly valued for its striking silvery foliage, drought tolerance, and showy yellow daisy heads, making it superb in coastal and gravel gardens. It is an excellent choice for native gardens, restoration projects, and specialized horticultural collections, providing year-round interest and resilience in challenging environments.
Landscaping Uses
Garden Design Applications
Excellent for rock gardens, alpine collections, and naturalistic plantings. Best used in open, well-drained positions where its distinctive form can be appreciated. Combines well with other native alpine plants and provides year-round structure. Consider placement carefully due to sharp foliage - avoid high-traffic areas. Creates dramatic focal points in contemporary and native-themed garden designs.
Seasonal Care
Year-Round Maintenance
Spring management focuses on removing winter-damaged foliage and assessing drainage. Summer care emphasizes maintaining adequate moisture without waterlogging. Autumn preparation includes reducing irrigation and ensuring good air circulation. Winter protection may require covering in areas subject to excessive moisture. Year-round monitoring ensures early detection of problems and maintenance of optimal growing conditions.
Pruning
Pruning Techniques
Brachyglottis greyi generally requires minimal pruning to maintain its natural, compact form and attractive silvery foliage. Focus on removing any dead, damaged, or unsightly growth as needed throughout the year to keep the plant healthy and tidy. Light annual trimming after flowering can encourage a denser habit and more prolific blooms, enhancing its ornamental value without stressing the plant.
How to Grow Daisy Bush
From Seed
Brachyglottis greyi is relatively easy to propagate from fresh seed. Collect mature seeds from the dried flower heads in autumn when the pappatae achenes (feathery seed structures) are ripe. Sow the seeds immediately onto a well-draining seed-raising mix, such as a blend of sand and fine compost. Barely cover the seeds, as light can aid germination. Maintain consistent moisture and warmth, ideally around 15-20°C (60-68°F), in a well-ventilated location. Germination usually occurs within a few weeks. Once seedlings are robust enough to handle, prick them out into individual pots and grow them on in a sheltered, bright location until they are strong enough for planting out.
From Cuttings
Propagation via semi-hardwood cuttings is a reliable and popular method for Brachyglottis greyi. Take 8-12cm long semi-hardwood cuttings in late summer. Remove the lower leaves and treat the cut end with a rooting hormone to encourage root development. Insert the cuttings into a free-draining mix of sand and perlite. Maintain a humid environment, such as in a propagating case or under intermittent mist, and provide good air circulation to prevent fungal problems. Cuttings root easily within 4-6 weeks when kept warm and humid. The species can also be layered naturally, where shoots are pinned down and covered with soil until roots develop.
General Cultivation
This silver-leaved coastal shrub daisy is an excellent choice for coastal gardens and exposed sites, thriving in full sun and well-drained soils. Plant in raised beds or on sloping sites that ensure rapid drainage, as the species is highly susceptible to root rot in waterlogged conditions. Use a gritty, free-draining soil mix with added sand or gravel, avoiding heavy clay soils that retain moisture. The plant tolerates poor, lean soils and often performs better in nutrient-poor conditions that mimic its natural rocky coastal habitat. Water sparingly once established, allowing the soil to dry between waterings, and avoid overhead irrigation, which can promote fungal problems on its felted foliage. Position where plants receive good air circulation and protection from excessive humidity, making it ideal for windy coastal locations where other plants may struggle. Prune lightly after flowering to maintain a compact form and encourage fresh growth.
Pests and Diseases
Common Problems and Solutions
Brachyglottis greyi is generally very hardy and resistant to pests and diseases when grown in appropriate coastal conditions. The primary threat is root rot caused by poor drainage or overwatering, which can quickly kill plants adapted to free-draining rocky soils. Fungal diseases may occasionally affect plants grown in humid, poorly ventilated locations, particularly those in inland gardens without adequate air circulation. Aphids may attack new growth during the spring flush, especially on stressed plants, while scale insects can appear on plants grown in suboptimal conditions. Slugs and snails may damage young foliage during wet periods. The silvery, woolly leaf surface provides natural protection against many insect pests. Prevention focuses on providing excellent drainage, appropriate growing conditions, and good air circulation rather than chemical treatments, as this robust coastal species thrives when its basic cultural needs are met.
Cultural Significance
Traditional Uses and Values
Brachyglottis greyi holds cultural significance as an endemic species representing New Zealand's unique coastal flora and serves as an important symbol of the country's specialized coastal ecosystems. While traditional Māori use of this particular species was limited due to its restricted coastal distribution, it forms part of the broader cultural landscape of coastal environments valued for both their spiritual significance and resource gathering opportunities. The species has gained contemporary importance in native garden design and coastal restoration projects, representing authentic New Zealand coastal vegetation. Its distinctive silver-grey foliage has made it popular with gardeners seeking to create landscapes that reflect New Zealand's natural character. The plant serves as an educational ambassador for coastal conservation, helping raise awareness about the vulnerability of specialized coastal habitats and the importance of protecting endemic flora. Today it bridges traditional ecological knowledge with modern conservation science in efforts to preserve New Zealand's coastal heritage.
Bonus Tip
Expert Growing Advice
Brachyglottis greyi is particularly effective when planted in sunny, exposed coastal or gravel gardens. Its silver-felted foliage offers superb drought tolerance and reflects intense sunlight, making it an ideal choice for hot, dry sites where other plants struggle. Minimal intervention is key to its success.
