Saturday, 5 April 2014

A garden without wildlife is hardly a garden at all

Ever changing ever new

Our average affluent north Durban suburban garden owner has the most  uninteresting sterile garden possible planted to a very limited number of sterile unchanging plants such as Philodendron selloum cv. Xanadu, bright coloured crotons Codiaeum variegatum, dust collecting Dianella tasmanica variegata, Ophiopogon japonica, Ophiopogon jaburan variegata a never changing boring landscape. Masses of boring single straight stemmed palms, yellow leaved Duranta erecta Sheena's Gold ™ which have been trimmed into hedges, balls and who knows what, to me a plant that is this colour is  critically ill and needs to be removed. All to be finished of with horrible gaudy purple border bedding plants such as purple setcreasea Tradescantia pallida and Rheoe Tradescantia spathacea

Croton Codiaeum variegatum

The Croton Codiaeum variegatum above is very clearly a magnificent plant that has its uses but it never changes how it looks which in time becomes overpowering and boring and in particular it is sterile, it attracts no wildlife at all it could very easily be replaced in the garden with an identical copy made of plastic and few if any people would be any the wiser. These magnificently colourful plants most certainly do not bring life into the garden.

Change and variety are the spices of life and that applies in particular when planning a garden either exotic or indigenous if one would like to create tranquillity in the garden and to provide the greatest of benefit for the user and observer.

In a Proudly South African living garden planted to our local South African plants there are never two days that are the same, it is ever changing, ever interesting, the  bright yellow bloom of a Hibiscus calyphyllus or Hibiscus surattensis here this morning gone this afternoon a flush of blooms the following day.

 
Hibiscus surattensis  bright and beautiful ever changing never the same.

Dietes grandiflora and Dietes iridioides which come to their full glory for a single day in the spring and early summer months after a drop in atmospheric pressure, then wait for the next drop in pressure to repeat the spectacle. A blaze of blue from the Agapanthus Agapanthus praecox spp.orientalis for a few weeks during midsummer, a blaze of orange from the aloes during the winter to be followed by a blaze of red from the coral tree Erythrina lysistemon announcing the early spring that attract birds and insect 

A brightly coloured butterfly here and brightly coloured bird over there plucking a bright berry from a Psychotria capensis bush. A brightly coloured carpenter bee sucking nectar from the flower of a Justicia betonica, dragonflies doing their amazing aerial displays, interesting and brightly insects every where.

A brightly coloured carpenter bee Xylocopa caffra sucking nectar from the flower of a Justicia betonica

A bright coloured bird flying overhead to alight and pluck a bright red berry from a Psychotria capensis in full fruit in the winter. An interesting and colourful bug sitting on a flower, interesting colourful insects everywhere you look in the garden. A Striped Skink Trachylepsis striata sunning its self on a stone and one up on the roof garden waiting for a fat fly to pass by, a blue headed tree agama Acanthocercus atricollis sunning itself on the trunk of a tree

A spectacled Weaver Ploceus ocularis building its nest on a Strelitzia tree Strelitzia nicolai outside my kitchen door.

These things are seldom seen and experienced in your regular traditional Durban garden with its mostly sterile tropical and subtropical plants that appear to never change from season to season, day to day, week to week, year to year, never changing always the same. Many of these gardens may just as well be made of brightly coloured plastic and concrete for all the life that they bring into the garden. Well manicured bright un-natural colours, coarse textures.
  
A well designed garden planted exclusively to our local indigenous plants will be green and tranquil full of interest, full of beauty, with green that comes in every texture, form and shade is ever changing ever new. Every day there is a new surprise, as flower buds burst open to expose a splash of brilliant colour, sometimes lasting only a few hours and sometimes weeks on end then back to the tranquillity of green to soothe the soul.

A very easy plant to propagate and to grow is this magnificent pendulous Gladiolus cruentus a rare critically endangered local gem seldom if ever seen in cultivation in South Africa

A brightly coloured sun bird gently alights on a leonotis intermedia to sip nectar before flitting off to another brightly coloured plant or to hawk a passing insect in mid air.

During the day bright orange paradise flycatchers with their long tail feathers dart out under the canopies of the trees to catch a passing fly and as the sun dips its head below the horizon tiny little bats appear doing tight aerobatics under the same trees to hawk the insects that they feed on.

I look out the window and see a bright coloured Locust Zonocerus elegans which feeds on the milk weed plant Gomphocarpus physocarpus which is also the host plant to the African Monarch Butterfly.

A bright coloured Locust Zonocerus elegans resting on the flower of a grass aloe, Aloe cooperii

A bronze back manikin alights on a grass stem to pluck a seed head of Panicum maximum to build his nest,  later I see him return to collect the fluffy flower heads of natal redtop grass Melinis repens to line it with.

A bright red African Fire Finch arrives on the ground just outside my kitchen door to look for seed and insects.

African Fire Finch Lagonosticta rubricata

The sound of the Crested Barbet that has his home in a nest box I placed in a tree directly opposite my kitchen window only a few metres away, the sound of  Painted Reed Frogs in a small pond of arums in the evening a garden which is a haven for wildlife in all its forms both day and night with interest without end, is this not what a garden should be.

Painted Reed Frog Hyperolius marmoratus

To maximise the life in a garden it must be planned with as large a variety of interesting local plants to create habitat, which provides shelter, breeding and feeding opportunities for all manner of creatures both great and small. Thereafter we need to do little more to encourage life into our gardens, if the conditions are right wildlife will come and stay of its own. The bigger the variety of plants and habitat types the greater the numbers of creatures that will be attracted. The garden must have water, it must have lawn to serve as green pathways and to separate the different elements of the garden. Do not forget a bench here a table and chairs there so that one can sit and relax and enjoy the garden and its wildlife.

African Monarch butterfly Danaus chrysippus on the flower of it´s host plant the Milk Weed Gomphocarpus physocarpus

There is no reason why a garden that is maximised for wildlife should not be planned and planted to the highest standards of landscape design incorporating only our local plants and a slightly different order to what has traditionally been accepted here in South Africa and much of the world.

When it comes to maintenance the garden must still be well manicured just as the sterile traditional garden in particular at the entrance and near to the house but it will need to be a slightly different order, the beds will still need to be edged, the lawn mowed and the weeds removed, no one wants to be greeted by a mess. However the maintenance must not show a misguided sense of order it must not be carried out with sensitivity and not to the detriment of the life in the garden.

All the photos that I used in this article have been taken in my own garden at Mount Moreland north of Durban.

Michael Hickman
Landscape Design Specialist


05.04.14

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Thursday, 3 April 2014

Green roofs bring nature back into your life


Green or living roofs can be designed to be planted onto almost any structure big or small commercial or residential.


If pictures tell more than a thousand words then the pictures that follow certainly tell it all


Here I am sitting on the roof of a five storey building considering what to write about green roofs on this Blog which to many may be hard to believe at first.


Over to the right you can see the bench that I was sitting on with a magnificent natural pond in front of it.




Here is a view of the path leading to the pond in the photo above through a beautifully natural garden planted entirely to locally occurring South African plants. From seeing the photos it is hard to believe that I could possibly be on the roof of a five storey building.

Below provision has been made for an open area to allow for those attending functions to spill out on to the lawn and to enjoy the view of the area.


This Green Roof at 29 Degrees South which is planted exclusively to our local floral treasures is a very fine  example of what can be done when there is the ethic and the will to bring nature together in harmony with man in the design of our buildings and our living and working environments. This is a very good case of leading by example, hopefully and example that many will follow in preserving our natural heritage by combining our unique South African flora and fauna into our urban developments. In this way we can become trend setters leading the world by example.


All the  photos of the green roofs so far have been taken on the green roof of  29degrees South a five story building which was designed for and houses the head office of Dube TradePort which is situated right next to the new King Shaka International Airport north of Durban. 

A very different style of green roof has been created using a large number of local plant species that grow in rocky places and in grassland on very shallow soils to create a bio-diverse Green Roof. This Bio-Diverse Green Roof which I designed and planted to bring the maximum bio-diversity possible is on a government office building at Ixopo in the KwaZulu-Natal Midlands


Below is a bio-diverse green roof that I designed and planted on the sand pumping station on the Durban beach front at the entrance to Durban harbour. The plants on this roof are exposed to very extreme conditions caused by the strong salt laden north easterly winds that blow in this particular totally unprotected location.


Below is an example of what can be done by the average home owner on a very small scale around your own home to add interest. The small green roof has purposely not been completed at this stage to be able to show the construction details. When designing and completing your own green roof a cladding will need to be added to hide the growing trays as have been used in this design or to contain the growing medium if no trays are used to make it look finished.

You can create the same effect when planing your next hotel; office park, factory, home, garage or other construction project. It is clearly well worth considering creating a living roof in place of a sterile tile, iron or concrete one all it needs is a little imagination and forward planning on your part and the part of your design team.

The building of a Green roof is a good way to increase the Bio-diversity and interest a of a boring sterile site as in the photo below, in addition green roofs are often good places to grow many plants that do not grow well in deep soils or where there is competition from other plants growing nearby.

Having a green roof can bring nature into direct contact with our offices and dwellings where it can be observed with great ease.
A green roof can merge the landscape with the structures we create in a seamless manner bringing the landscape design right up to onto and into our living spaces.

Green roofs soften the look of our structures and gives them life, they also lessen our impact on the natural environment in which we live in many ways.

The example has been set it is now up to you the reader whether you are an architect, a landscape architect, a property developer or a home owner to take the lead and carry it a step further every one can do there bit.


The Ecoman Green Team Hlengiwe and Michael on a green roof we designed and planted for the eThekwini Municipality in Durban a few years ago.

For those wanting to know a little more about green roofs go to; An Introduction to Designing Green Roofs in South Africa their design, construction and care at my website at

Friday, 28 March 2014

Forest Toad Tree Tabernaemontana ventricosa an ideal tree for a small garden

Forest Toad Tree


Tabernaemontana ventricosa

Umkhahlu, Ukhamamasane (Zulu)

Belongs to the plant family Apocynaceae.




Natural Distribution and Habitat

Tabernaemontana ventricosa  has a disjunct distribution from Ghana, eastern Nigeria, western Cameroon, eastern Democratic Republic of the Congo, Kenya, Tanzania, Zambia, Mozambique, Zimbabwe and South Africa in the coastal areas of KwaZulu-Natal where it grows in riverine forests and the forest under storey.

Description 

This small to medium-sized tree can reach a maximum height of 15 m, but averages between 4 and 8 m. Tabernaemontana ventricosa can have one or more straight trunks with smooth greyish-brown bark. The tree is low branching with smooth, dark green young branches turning a pale brown when mature. The leaves are large oblong and shiny dark green in colour, the flowers are salver-shaped, white and sweet smelling. The unusual fruits have two pods joined at the base they are dark green and smooth, sometimes with wrinkles and light green speckles or markings they split open to reveal fleshy orange pulp with embedded seeds in June to August.



Use in the landscape

Tabernaemontana ventricosa with its small size, clean tidy growth habit, glossy dark green foliage, attractive sweet smelling white flowers and unusual fruits, is excellent for the landscape designer of gardener to plant in any garden or landscape design. For those wanting to plant it to bring nature back into their indigenous garden it is an excellent choice because apart from being an ideal landscape feature plant it also attracts birds, insects and small mammals into your garden.
Although Tabernaemontana ventricosa grows naturally mostly as an under story plant and prefers shade to partly shady conditions it will grow in the full sun in a garden if it is sheltered from the wind and it gets plenty of water, where it will flower much more profusely than if grown in shade.
Tabernaemontana ventricosa is frost sensitive, preferring more tropical areas with mild winters.
Tabernaemontana ventricosa will happily grow in wet places where many other plants may not grow.

Ecological importance

Birds, animals such as fruit bats and monkeys eat the fruit. The leaves are browsed by game in particular bushbuck, the sweet smelling flowers attract various insects.




Propagation and Growing

Tabernaemontana ventricosa can easily be grown from fresh seed and grows relatively fast under favorable conditions.
Tabernaemontana ventricosa seedlings grows best in humus rich well drained sandy soils.
Plant in a large hole and mix in a good amount of compost, well rotted manure, and a balanced fertiliser. Mulch well and water regularly, especially during the first year or two for optimum growth.


Cultural Uses 

The bark of this tree is said to be used for bringing down a fever, the latex is applied to wounds and sore eyes to promote healing and in KwaZulu-Natal the seeds, bark and roots are used to treat nervous complaints and high blood pressure.
The pulp of the ripe fruit is edible.

Michael Hickman
28 March 2014

Indigenous Landscape Design Specialist http://www.ecoman.co.za


Talking Plants: One part lion’s fat, one part python’s fat and the roots of an upside-down wisteria*

Talking Plants: One part lion’s fat, one part python’s fat and the roots of an upside-down wisteria*