Environmental Landscape Design Specialist

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Agapanthus praecox subsp. orientalis

Plant suitable for use on Green Roofs in the Durban Area

Agapanthus praecox supsp. orientalis

Agapanthus praecox subsp. orientalis
Is one of a number of plant species which are presently being tested for their suitability to be grown as Green Roof plants in the Durban region that have initially shown good results. They all occur naturally within a radius of 50 km of the Durban city centre

Agapanthus praecox subsp. orientalis plants occur naturally mostly in full sun on rocky outcrops in the Durban area at an altitude of about 1500 feet where they grow in very shallow soils mostly with little or no competition from other plants.

Growth habit
These plants are fairly large to medium growing evergreen and clump forming that reproduce naturally by means of seed

Decorative value
These plants are most decorative having dark glossy green leaves and a very neat growth habit, they produce spectacular blue flowers in profusion in early to mid summer

Drought resistance
In their natural habitat they are able to withstand long periods of drought probably due to the very large succulent root mass which is quickly able to store large amounts of water.
From my experience of growing these plants as pot plants I have found them to be very drought resistant.

Disease and pest resistance
Agapanthus plants are generally very disease resistant being attacked on occasion by a borer caterpillar in particularly when they are growing luxuriously as occurs when they are provided with large amounts of nutrient and water. Flower spikes are can also be attacked by fungus during periods of very warm wet weather which prevents the flowers from opening.

Suitability as Green Roof plants
These plants are medium to large plants which do not like competition from more vigorously growing plants. They are probably best suited as feature plants, but could possibly be planted en mass. These plants are most probably best established from splits or mature plants.
Under our test conditions where these plants have not been under competition from more vigorous growing plants they are showing good results.

Biodiversity value in the Green Roof landscape
They create robust habitat and protection for other green roof dwellers. Their flowers attract pollinating insects in particular solitary bees.

Cautions and precautions in the Green Roof application
None that I am aware of at the moment

Ecoman Durban Indigenous Landscape Design Consultant

Bio-Diverse Indigenous Landscaping I design landscapes and gardens that are Bio-Diverse as well as being pleasing to the eye

Landscapes and Gardens that are Nature Friendly

I use my many years of landscape planning and design as well as landscape construction experience coupled to my vast knowledge of the requirements of nature to create habitat suitable for birds, butterflies and other creatures to live and breed in.


I always apply the basic principles of good landscape design to create an aesthetically pleasing garden that at the same time satisfies the living requirements of the target creatures that I would like to attract. My speciality is to attract birds, butterflies and solitary bees. I design and build Bio-Diverse Roof Gardens


So let Ecoman design and create a garden for you that will be a haven for wildlife such as birds, butterflies, frogs and lizards in the number of species comparable to Kruger National Park.

For all of your Green Roof requirements contact Michael Hickman Specialist in Green Roof Technology at +27 82 061 2593 or email at info@ecoman.co.za

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This page was created on 27.08.09
This page was last updated on 18.10.13