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Back to Fact Sheet Contents Page	Facts Sheet 10
"Drain Cloggers"
Planting trees and shrubs near pipelines can become an expensive exercise at a later stage, if the plants chosen have a strong moisture searching root system. The fine roots will penetrate any cracks in the pipes, eventually blocking thepipe. The bigger roots may actually dislodge pipes causing breakages and leaks. The following list of Australian native plants have proven to be SAFE growing near underground pipes
Acacia myrtifolia Myrtle wattle Bauera rubioides Dog rose 'Ruby Glow' Bauera sessilifolia Showy Baurea Boronia denticulata Boronia heterophylla Red Boronia Boronia pinnata Pinnate Boronia Bracteantha bracteata Golden everlasting Chrysocephalum baxteri White everlasting Chrysocephalum apiculatum Chorizema cordatum Heartleafed flame pea Correa alba White Correa Correa baeuerlenii Chefs cap Correa Correa decumbens Correa glabra Rock Correa Correa 'Mannii' 'Mannii' Correa pulchella Correa reflexa Common Correa Correa schlechtendalii Crowea exalata Small Crowea Crowea saligna Dampiera diversifolia Epacris impressa Common heath Epacris longiflora Fuchsia heath Epacris microphylla Coral heath Philotheca myoporoides Wax flower syn. Eriostemon myoporoides	Grevillea buxifolia Grey spider plant Grevillea lanigera Woolly Grevillea Grevillea sericea Pink spider flower Grevillea speciosa Red spider flower Grevillea baueri Grevillea diffusaHovea lanceolata Hovea elliptica Tree Hovea Myoporum parvifolium Creeping boobialla Prostanthera denticulata Prostanthera incana Velvet mint bush Prostanthera melissifolia Balm mint bush Prostanthera ovalifolia Purple mint bush Prostanthera rotundifolia Round leaf mint bush Scaevola aemula 'Purple Fanfare' Stypandra glauca Nodding blue lily Westringia glabra Violet Westringia
The Australian native plants listed below all have a water searching root problem and can block drains. These plants should not be planted closer than 3.5 metres to sewerage pipes and other drainage pipes.
Acacia saligna Golden wreath wattle Acacia terminalis Sunshine wattle Agonis flexuosa Willow myrtle Allocasuarina stricta Drooping she oak Allocasuarina torulosa Forest oak Angophora costata Smooth barked apple gum Angophora hispida Dwarf apple Brachychiton acerifolius Flame tree Brachychiton discolor White kurrajong Brachychiton populneus Kurrajong Casuarina cunninghamiana River she oak Casuarina glauca Swamp oak Eucalyptus cinerea Argyle apple Eucalyptus citriodora Lemon scented gum Eucalyptus maculata Spotted gum Ficus all species Figs Grevillea robusta Silky oak Hymenosporum flavum Native frangipani Lophostemon confertus Brush box Melaleuca armillaris Bracelet honey myrtle Melaleuca linariifolia Snow-in-summer Melaleuca styphelioides Prickly-leaved tea tree Melia azedarach White cedar Pittosporum rhombifolium White holly Pittosporum undulatum
The following plants are not recommended to be planted within 2 metres of drains and sewerage piplelines Acacia cultriformis Knife leaf wattle Acacia howittii Sticky wattle Acacia iteaphylla Flinders Range wattle Acacia longifolia Sydney golden wattle Acacia retinodes Wirilda Acmena smithii Lilly pilly Callistemon citrinus Crimson bottlebrush Callistemon 'Harkness' 'Harkness' Callistemon salignus Willow bottlebrush Callistemon viminalis Weeping bottlebrush Hakea salicifolia Willow leafed Hakea Omalanthus populifolius Bleeding Heart Leptospermum laevigatum Coast tea tree Melaleuca hypericifolia Hillock bush Melaleuca fulgens Scarlet honey myrtle Pittosporum phillyreoides Weeping pittosporum *Callistemon citrinus* Reference books- "Grow What Where", Australian Plant Study Group, Published by Nelson. "Encyclopedia of Australian Plants Suitable for Culitvation", Vol.1, R.Elliot & D.Jones, Lothian. Produced by the Australian Plants Society, Central Coast Group in conjunction with Gosford City Council and Wyong Shire Council.