Windbreaks are a critical landscape element in Hawaii for protecting homes, farms, roads, and coastal infrastructure from prevailing trade winds, salt spray, and wind-driven erosion. Native trees and shrubs offer ecological advantages–adaptation to local climates, support for native wildlife, and reduced long-term maintenance–when compared with many exotic species. This article examines the best native and indigenous Hawaiian trees for windbreaks, explains design principles, and gives concrete, practical guidance for planning, planting, and maintaining effective living wind barriers across the islands.
Native and indigenous species are adapted to local soils, rainfall patterns, and climate stresses such as salt spray and wind. They support native pollinators and birds, require less fertilizer and pesticide in the long run, and reduce the risk of creating invasive stands that harm native ecosystems.
Using native species also increases resilience: a mixed stand of natives can maintain function if one species succumbs to disease or pests. In Hawaii, where unique pathogens (for example Rapid Ohia Death) and insects (wiliwili gall wasp) affect particular taxa, diversity reduces catastrophic loss.
Windbreak performance depends on height, orientation, density (porosity), and continuity. Keep these design rules in mind when choosing species and arranging plantings:
Below is a shortlist of native or indigenous Hawaiian trees and shrubs commonly used or highly suitable for windbreaks. Each species description includes typical mature height, tolerance factors, growth rate, and practical notes.
Ohia lehua)
alii / aalii)
Ohia lehua)Mature height and habit: highly variable–shrubby varieties 2-5 m; trees commonly 8-20 m.
Tolerance: very adaptable across elevations and soils, moderately wind- and salt-tolerant in coastal varieties, but highly vulnerable to Rapid Ohia Death (ROD) in areas where the pathogen is present.
Use: excellent as mid- to upper-canopy element in upland and mid-elevation windbreaks. Avoid planting exclusively with ohia where ROD is active; mix species.
Mature height and habit: 15-25 m in good sites; open crown, fast growth on fertile soils.
Tolerance: not salt tolerant; prefers higher elevations and moderate to high rainfall.
Use: ideal for high-elevation windbreaks and shelterbelts on ranchlands where trees can reach full height; nitrogen-fixing benefits soil fertility.
Mature height and habit: 6-20 m, fast-growing with broad crown and drooping branches.
Tolerance: tolerant of coastal conditions and moderate salt spray; moderate drought tolerance once established.
Use: effective coastal windbreak component; produces edible nuts and supports cultural plantings.
Mature height and habit: 6-12 m, dense rounded canopy.
Tolerance: very salt tolerant and tolerant of sandy soils and wind.
Use: excellent coastal windbreak species that forms a dense canopy and good visual screening.
Mature height and habit: often 3-10 m with prominent stilt roots and a layered crown.
Tolerance: extremely salt tolerant, excellent for dune and shoreline stabilization.
Use: ideal for first-line coastal protection; stilt roots help trap sand and reduce erosion.
Mature height and habit: 6-12 m, rounded canopy, dense branching.
Tolerance: very salt tolerant; performs well on coasts and in wind-exposed sites.
Use: creates dense shelter and is also valued for flowers and cultural uses.
Mature height and habit: 4-15 m, dense evergreen foliage.
Tolerance: tolerant of wind and salt spray; drought-tolerant when established.
Use: great mid-story tree in windbreaks; forms dense wind-sheltering foliage.
Mature height and habit: 6-15 m, quick-growing with dense branching; coppices readily.
Tolerance: highly salt tolerant and excellent for hedgerows and coastal shelterbelts.
Use: can be managed as a thick hedge (coppiced) to provide nearly continuous, dense windbreaking.
alii)Mature height and habit: usually 1-4 m as a shrub, sometimes reaching 4-6 m.
Tolerance: very tolerant of wind, salt, drought, and poor soils.
Use: superb choice for low hedges, filler rows, or as a sacrificial windward row. Fast to establish and useful for stabilizing slopes.
Mature height and habit: 6-15 m with open, spreading crown; deciduous in dry season.
Tolerance: excellent drought tolerance for dry lowland windbreaks; lightweight wood and somewhat brittle.
Use: use in mixed plantings for nitrogen fixation and seasonal canopy; avoid sole reliance because of susceptibility to gall wasp and the open crown may allow some wind through unless planted densely.
Design your windbreak according to the desired function (full shelter, sand control, visual screening) and the mature height of the species you choose. A practical layout:
Example mixed 3-row windbreak for coastal site (trade-wind exposed):
This pattern yields layered canopy, mixed porosity, and redundancy.
Site preparation, establishment care, and ongoing maintenance determine long-term windbreak success.
Be aware of species-specific threats and plan for diversity:
Ohia Death (Ceratocystis) affects ohia; avoid monocultures of ohia in affected areas.
Coastal beaches and dunes: choose hala, milo, kou, hau, and pandanus as front-line species for salt spray tolerance and sand trapping. Plant densest rows nearest the shore and provide continuous coverage.
Dry lowlands and ranch country: use wiliwili, aalii, and koa (on higher, less saline zones) mixed with hardy shrubs. Drought tolerance and deep rooting are priorities.
Upland and rainier slopes: include koa and ohi’a, with naio for mid-story. Ensure diversity for disease resilience and select ecotypes adapted to elevation and rainfall.
Goal: Protect a one-acre vegetable field from northeasterly trade winds and reduce salt spray.
Year 0 (design):
Year 1-2 (establishment):
Year 3-5 (maturation):
A well-designed native windbreak in Hawaii not only protects property and crops from wind and erosion but also enhances habitat, stabilizes soils, and contributes to the cultural and ecological integrity of the islands.