Deadly Dodder

It seems as if my subject matter is heading towards the dark side lately - Poisonous Cycads, and now Creepy Dodder. I promise, its purely circumstantial and no substantive change in direction…

After not having seen any Dodder (Cuscuta sp.) for about 10 years, I've spotted 2 infestations in the last week in gardens that I've visited. If you don't know of Dodder's reputation, then its about time someone passed on its diabolical legend - its really the plant equivalent of a super-villain.

Cuscuta (Dodder)

Dodder is one of the only plants that don't have chlorophyll, and therefore cannot make food from sunlight. You would think this would put it at a disadvantage, but actually, this is where the story takes a bizarre twist into the horror-genre of the plant kingdom.

Dodder is a parasitic plant which feeds on its host plant by entwining its leaves and stem, and then producing haustoria - suckers which grow into the host and then literally suck the life from its limbs. If this isn't scary enough, it also has the ability to grow from even the tiniest fragment towards its next unwitting victim. It doesn't even need to have the apparent crutch of a root system to hold it back.

It appears to have the ability to 'smell' its next victim and grow towards it - with plants surviving about 5-10 days without a host. It also spreads by seed - tiny little pea-sized seeds which germinate very easily.

All these aspects of its incredible design is also what makes it so tough to get rid of. Here are a few simple steps to rid yourself of Dodder:

1. Try to catch it early, the more there is of it, the harder it is to remove.
2. Catch it before it seeds itself - as the seeds can lie dormant for quite a while before sprouting.
3. It is best to place a piece of plastic as close as possible to where you are working to catch all the pieces of the plant that might fall onto the ground.
4. Cut back the host plant well below where the dodder attaches itself, because the plant can regrow from its Haustoria.
5. Ensure that you try to get rid of as much as possible without dropping any pieces.
6. Burn all the traces of the plant, and don't try to make compost from it!
7. Follow up - keep looking for traces of it (Go back to Step #1)

One Man's Cycad Is Another Man's Poison

Are Cycads poisonous?

I was recently asked this question, and realized that it's something not too many people know about. The plain answer is yes, Cycads are poisonous, but as with most things plant related, when you dig below the surface you'll find some interesting things.

Most parts of Cycads contain toxins that can, when eaten in large enough doses, cause sickness and even death. But the ironic thing is that the Afrikaans name for a Cycad is a broodboom (lit. Bread Tree). This comes from the fact that in South Africa and in many cultures around the world, the seeds of Cycads have been used to make flour.

In South Africa, legend has it that a group of Boer soldiers were hiding out in the hills - after a while they got hungry and decided to try cooking and eating the seeds - for the next few days they were laid out in pain, before recovering sufficiently to keep going.

In Australia, an aboriginal tribe would prepare the seeds by putting them in water to leach out the toxin, this would take about four days. The seeds were considered safe to eat once fish had started to nibble on it. At which point, the seeds were then ground down into flour and made into bread. (don't try this at home - and if you do, don't invite me)

But don't go out and uproot your Cycads in a hurry. If you consider how many gardens have Cycads growing in them, and yet cases of poisoning are extremely rare.

Just as a side note - Cycads are a rather large group of plants. In South Africa, the Encephalartos (usually spiny) and Stangeria (stemless) are indigenous, while the Cycas - commonly known as Sago Palm (softer leaves with relatively small spines at the base) is not. Indigenous Cycads are a protected plant in South Africa.

Medicinal Plants Training

Plants were once our primary source of medicines, only to be replaced by Western medicine (usually coming from plant extracts). South Africa has been particularly blessed with an abundant source of medicinal plants, and a wealth of knowledge which is an important part of our natural heritage.

Prof. Ben-Erik van Wyk, author of the book “Medicinal Plants of South Africa”, is hosting a 1 day course at the Pretoria Botanic Garden on the 12 November 2011. The cost is R550 per person, and I'm sure it will be very interesting for anyone with a fascination for medicinal plants.

Contact Jolene at info@alut.co.za or 014 717 3819 to book for the course.

Bringing a Concept to Reality

Ok...well...it's been a while since I've had time to blog. I've had several projects on the go which have been taking up a lot of my time.

But I'm happy to say that the one that has been giving me the most sleepless nights lately, and the endeavour I'm most proud of, is the arrival of my daughter Emily Ann...

Romead Business Park - an inspiring green approach

Romead Business Park is quite an exciting project that I've been working on over the last year.  A prominent developer was looking for a new home for their offices, and rather than finding a cookie-cutter building for their offices, they decided to create their own space, and hopefully attract others with their same ideals.

Common Areas Landscape Plan for Romead Business Park

Their approach to the entire project has been quite refreshing. They found a property that was nestled in the escarpment below Kloof which was ideal from so many perspectives - a beautiful piece of land right between the Umbilo river and a part of the Durban Metropolitan Open Space System (D'MOSS). Part of the trade-off of developing on a slightly degraded section of this site, was to give a large portion of the property to be used as Open Space.

Grassland above Romead - the landscaping should eventually return to this

Their ethos behind the development has been quite inspiring - they have been looking for any viable opportunities to approach the project from an environmental perspective, which in these tough economic times is quite a brave stance. But altogether necessary from a long-term point of view. It's been an ethos that has come at a cost - both emotional and financial!

The design code for the development has been quite comprehensive and pioneering, and - I believe - one of the best guides for development from an architectural and landscaping perspective in Durban.

Some of the ideas that have been looked at, and in some cases, written into the design codes are solutions like rainwater harvesting, wind-turbines, creating mulch and compost from the existing vegetation on site, the use of indigenous planting and an approach that places an emphasis on the balance between aesthetics and function.

As the Business Park begins to gain momentum, I'm looking forward to seeing how it all comes together.

Beauty in Context

Landscaping in South Africa has its fair share of challenges. Not least of which is the huge disparity in lifestyles and priorities. I have created luxurious gardens in opulent neighbourhoods, while just over the hill, people are living in relative poverty. Sometimes 10 people to a shack, without the capacity for beautiful gardens. Maslow's hierarchy of needs is sometimes very obvious when living in a first-third world context.

Are Gardens Important Really?

A lady from our church who stays in one of these poorer areas (Cato Manor) recently had her house and all her belongings burnt to ashes. Fortunately she, and none of the orphans and children she cares for were hurt, but everything they owned is gone. I can't imagine what she must have felt to see all her possessions go up in smoke.
The good news is that several people have stepped in to help rebuild her house and put her back on her feet - the benefits of love and community!
Walking through the area today, I am reminded again of the imbalance that we live with on a day to day basis. Its hard to justify the need for spending money on creating gardens (or any art for that matter), when there is so much need around.

But 'imbalance' is probably a good word to use to describe the effect of financial extremes, as well as the difference between the two extremes. I believe a beautiful garden can do more to help restore the spirit, provide inspiration and aspiration, than almost any other art form. And is therefore almost as necessary as food for our bodies. People are at the heart of what we do when we create gardens, but people are multi-faceted and need more than just food.

Its within this framework that I choose to make gardens with little practical function other than food for the soul. But it is truly a careful balancing act that we need to walk, and community is at the core of what we do. The community are the clients we build them for, our staff we work with, the people we care for, and the people who find sustenance in enjoying the beauty of creation all around them.
Its in the context of community that my art finds meaning and value.

Poverty is also relative - A satellite dish in an umjondolo settlement!

Killing Your Dinner Guests, and Other Pest Control Solutions

Getting rid of pests in gardens is a tough subject. Its never easy watching bugs or other 'pests' eat their way through your beautiful garden. Especially when you've put in all that hard work, or spent all that money.

I left this little guy to eat what he wanted from my plants

But as with so many of the problems that we face in life, we resort to a knee-jerk reaction, or we respond emotionally. We don't stop to think things through properly. Sometimes it requires an unemotional look at, and a better understanding of the problem to decide what to do.
To put things in perspective, I look at pesticides (maybe we should more honestly call them naturecides because of the damage they do) in as serious a way as chemotherapy drugs. They should only be used in very serious situations, and when all other options have been examined and weighed.

Here's some questions to ask yourself before resorting to poisoning your garden with pesticides:

1. How serious is the problem?
Will the 'pest' kill the plant that it is eating, or will it just perform a natural function of cutting back, which gives space for new growth? Get some advice if you're not sure.
In most cases, its just a natural cycle, and the garden/plant will recover on its own without needing our intervention.

2. Is there a bigger problem behind this infestation?
Sometimes there are other reasons for a sudden increase in insect activity, but we end up treating the symptoms and not the cause. These reasons can be anything from a change in the plants ideal environment (too much sun, or shade), or even the over-use of chemicals in the past which has removed the pests natural predators or weakened the plant. Usually 'pests' increase when plants are weak and can't defend themselves.

3. Have I planted the right plant?
If we choose the right plant for the right place, it usually needs less attention. The right plant is usually less prone to attack from insects. Choose indigenous plants over exotics. Indigenous plants are normally more resistant to attacks.

4. Have I planted too much of the same plant?
Mono-cultures (a single type of plant spread over a wide area) are like an eat-all-you-want buffet. They're basically an invitation for insects and animals to come in take a load off, and eat to their hearts content. Most lawns are mono-cultures, and are usually the source of most problems.

5. Is this normal?
There is often a natural and harmonious balance between plant and insect that shouldn't be interfered with. Some plants actually need insects to eat them, to stay healthy. By spraying pesticides and herbicides, we're getting in the way, and could end up killing a lot more plants and animals than we intended.

6. Are you killing your dinner-guests?
This is really a follow up to the previous question. Most plants put "Open For Business" signs up in the way of fruit and flowers and juicy leaves. These attract insects for a reason, but these insects may sample other plants on their way in and out. If you plant a Butterfly Bush, it follows that you're going to see more caterpillars coming into the garden. Either get used to your visitors, or take the plant out.

7. Can I deal with them in other ways?
If at all possible, rather kill them by hand (or foot). If you're squeamish, there are plenty natural solutions out there; from beer, and grapefruit to chilli and flour. A little research usually yields a better solution (literally).

If none of these questions give you reason to resist the chemical route, then ask yourself one final question:

8. Is a little bit of chaos and mess not a good thing to have?
The need to have everything perfectly neat and tidy is sometimes a reflection of other issues that we are not dealing with, or other areas in our lives that are not under control. I believe that sometimes the challenges we face are there for us to confront the things we would rather not face.

If you still decide to go down the naturecide route, do it carefully and in a restrained way. But come back to these questions every now and then, and re-evaluate your garden as things change.