Best Plants for Adelaide Gardens — A Climate-Tested List

Adelaide’s climate — hot dry summers, mild wet winters, alkaline soils on the plains, sandy or clay-loam soils variously, occasional frost in some suburbs — defines a workable plant palette. Plants from outside this climate band can survive with effort; plants adapted to it thrive without it.

This is a curated list of plants that actually work in Adelaide gardens.

Trees that thrive

Drought-tolerant evergreens

• Olea europaea (olive) — drought, heat, alkaline soil. The signature Adelaide tree. Edible fruit (or pick a fruitless variety like “Tolley’s Upright”).
• Banksia integrifolia — coastal, drought-tolerant, attracts honeyeaters
• Pittosporum tenuifolium “Silver Sheen” — fast-growing, evergreen, narrow-leaved
• Quercus ilex (holm oak) — Mediterranean evergreen oak, eventual large tree

Deciduous

• Pyrus calleryana “Capital” — columnar ornamental pear, white flowers, autumn colour
• Magnolia × soulangeana — early-spring flowers, deciduous
• Lagerstroemia “Tuscarora” — crape myrtle, summer flowers, autumn colour
• Acer palmatum — Japanese maple, in protected courtyards (struggles in full afternoon sun)

Native large

• Eucalyptus leucoxylon (SA blue gum) — flowers attract honeyeaters
• Eucalyptus porosa (mallee box) — smaller scale, suburban-friendly
• Allocasuarina verticillata (drooping she-oak) — fine texture, wind-tolerant

Mid-storey shrubs

Australian natives

• Grevillea robyn gordon — long flowering, fast growing, attracts birds
• Banksia “Birthday Candles” — compact form, prolonged winter flowering
• Callistemon citrinus (crimson bottlebrush) — bird-attracting, very tough
• Acacia paradoxa (kangaroo thorn) — defensive hedge, yellow flowers
• Westringia fruticosa “Smokey” — clipped to formal hedges, drought-tolerant
• Correa alba (white correa) — coastal-tolerant, white flowers in winter

Mediterranean

• Lavender (Lavandula angustifolia and L. dentata) — drought-tolerant, fragrant
• Rosemary (Rosmarinus officinalis) — culinary, evergreen, drought-tolerant
• Cistus (rock rose) — colourful, summer-flowering
• Phormium “Yellow Wave” and varieties — strong texture, low water
• Coastal rosemary (Westringia) — clipped or natural

Other reliables

• Buxus microphylla — formal hedge, slower growing than English buxus, more drought-tolerant
• Pittosporum tobira — sweet-scented spring flowers, evergreen, dense
• Murraya paniculata — orange jasmine, evergreen hedge, fragrant flowers

Lower / strappy plants

• Lomandra longifolia — strappy native, indestructible
• Lomandra “Tanika” — finer-leaved cultivar, suits modern designs
• Liriope muscari — purple flowers, shade-tolerant
• Dianella revoluta — blue flowers, native, deep roots
• Carex “Frosted Curls” — silver foliage, fine texture
• Festuca glauca — blue fescue, formal mass plantings
• Phormium tenax — full-size NZ flax, architectural

Ground covers

• Myoporum parvifolium — creeping boobialla, fast cover, white flowers
• Carpobrotus rossii (native pigface) — succulent, salt and drought tolerant
• Hardenbergia violacea — purple coral pea, climber or ground cover
• Banksia integrifolia “Roller Coaster” — prostrate banksia
• Trifolium repens (white clover) — soft alternative to lawn
• Dichondra repens — low ground cover, soft
• Sedum spurium — succulent, tough as nails

Climbers and wall plants

• Trachelospermum jasminoides (star jasmine) — fragrant white flowers, evergreen
• Wisteria sinensis — spring flowers, deciduous, needs strong support
• Hardenbergia violacea — purple coral pea, native climber
• Lonicera japonica — Japanese honeysuckle, fragrant (can be invasive — keep under control)
• Boston ivy (Parthenocissus tricuspidata) — autumn colour on walls
• Bougainvillea — for the warmest sites only (north-facing, sheltered)

Lawn options

• Sir Walter buffalo — most common Adelaide lawn, robust, summer-tolerant, takes shade
• TifTuf — couch hybrid, very fine texture, drought-tolerant once established
• Eureka kikuyu — fast-spreading, full sun, less suited to shade
• Nara native turf — emerging native turf, lower water but slower establishment

Vegetables and edibles

The classic Adelaide kitchen garden:

• Tomatoes (Roma, Grosse Lisse, Tommy Toe) — summer
• Capsicums and chillies — full sun summer
• Zucchini and pumpkin — late spring through summer
• Citrus (Eureka lemon, Tahitian lime, blood orange) — perennial
• Olives (fruitless or fruiting)
• Figs — drought-tolerant once established
• Pomegranates — hot Adelaide summers suit them
• Stone fruits (peach, plum, apricot, nectarine) — chilling-hour requirements vary

Plants that struggle in Adelaide

For balance, plants that homeowners often plant and regret:

• Hydrangeas — water-thirsty, prefer partial shade and acidic soil
• Camellias — prefer cool, acidic conditions
• Rhododendrons and azaleas — really struggle in alkaline plains soils
• Tropical exotics (gingers, heliconia, banana) — not enough humidity
• Ferns (most) — too dry; tree ferns work in the Hills, struggle on the plains
• Soft-leafed perennials (campanula, delphinium, foxglove) — flag in summer

Soil pH considerations

Most Adelaide plains soils are alkaline (pH 7.5-8.5). Most Hills soils are slightly acidic (pH 6-7). Plants that prefer acidic soil (camellias, blueberries, azaleas) struggle on the plains without amendments.

If you want acidic-loving plants:

• Test your soil pH (at minimum)
• Acidify with sulphur, iron sulphate, or peat
• Plant in pots if your beds are stubbornly alkaline

Get a planting plan

Plant choice is half the work of garden design. The other half is what goes where, in what season, with what soil and aspect. Request a free design quote and an Adelaide designer will scope a planting plan suited to your specific site.