Alien plants
Are you harbouring these aliens?
Invasive plants compete with indigenous plants and acceptable exotics for space, sunlight, water and nutrients. They seed aggressively and spread quickly. You may not be aware you have them.
Category 1: Trees
The trees are: Robinia Pseudoacacia (Falfi acacia); Robinia Pseudoacacia (Black Locust); Acacia Mearnsii (Black Wattle); Melia Azedarach (Syringa).
Category 1: Declared Weed
The plants in Category 1 are:
Lantana Camara (Lantana); Solanum Mauritianum (Bugweed bush); Ligustrum lucidum berries (Chinese wax-leaved privet); Pennisetum Setaceum (Fountain Grass); Pistia Stratiotes (water lettuce); Doxantha unguis-cati (Cat's Claw creeper); Araujia sericifera (Moth Catcher); Ligustrum Ovalifolium (Californian privet); Cereus Jamacaru (Queen of the Night).
Lantana Camara (Lantana); Solanum Mauritianum (Bugweed bush); Ligustrum lucidum berries (Chinese wax-leaved privet); Pennisetum Setaceum (Fountain Grass); Pistia Stratiotes (water lettuce); Doxantha unguis-cati (Cat's Claw creeper); Araujia sericifera (Moth Catcher); Ligustrum Ovalifolium (Californian privet); Cereus Jamacaru (Queen of the Night).
Category 1 plants and trees must be removed and destroyed immediately.
Category 2: Declared Invader
The most common Category 2 plants include:
Rorippa Nasturtium Aquaticum (Watercress); Gleditsia Triacanthos (Honey Locust); Populus x Canescens (Grey Poplar); Salix Babylonica (Weeping Willow); Acacia Melanosylon (Australian Blackwood); Acacia Dealbata (Silver Wattle); Agave sisalana (Sisal Hemp); Hypericum perforatum (St John's Wort); Psidium guajava (Guava); Salix babylonica (Weeping Willow). Category 2 plants and trees may only be grown under controlled conditions.
Rorippa Nasturtium Aquaticum (Watercress); Gleditsia Triacanthos (Honey Locust); Populus x Canescens (Grey Poplar); Salix Babylonica (Weeping Willow); Acacia Melanosylon (Australian Blackwood); Acacia Dealbata (Silver Wattle); Agave sisalana (Sisal Hemp); Hypericum perforatum (St John's Wort); Psidium guajava (Guava); Salix babylonica (Weeping Willow). Category 2 plants and trees may only be grown under controlled conditions.
Category 3: Declared Invader
Category 3 invaders include the following:
Acacia Elata (Pepper Tree Wattle); Cotoneaster Franchetii (Orange Cotoneaster); Cotoneaster Pannosus (Silver-leaf Cotoneaster); Eriobotrya japonica (Loquat); Ipomoea purpurea (Morning Glory); Jacaranda mimosifolia (Jacaranda); Phytolacca dioica (Belhambra); Psidium cattleianum (Strawberry Guava). Category 3 trees may not be planted at all.
Acacia Elata (Pepper Tree Wattle); Cotoneaster Franchetii (Orange Cotoneaster); Cotoneaster Pannosus (Silver-leaf Cotoneaster); Eriobotrya japonica (Loquat); Ipomoea purpurea (Morning Glory); Jacaranda mimosifolia (Jacaranda); Phytolacca dioica (Belhambra); Psidium cattleianum (Strawberry Guava). Category 3 trees may not be planted at all.
If you have queries regarding alien plants and trees, call Rand Water's Call Centre on 0860 10 10 60.
