First published in the May issue of Woman magazine. This is what one might call a retrospective view of the impact of Cyclone Dovi back in February and what it might indicate for the future with climate change.
“Imagine if trees gave off wifi signals, we would be planting so many trees, we would probably save the planet, too. Too bad they only produce the oxygen we breathe.”social media meme
I did not have ‘hit by cyclone’ on my personal bingo card of climate change risk. Rising sea levels, flooding, mini tornado (we get a few of those in our area), slips, droughts – I had mentally considered all those scenarios.
Indeed, we made the decision two years ago to drop the one big tree that could fall on our house and pretty much demolish it. It was a handsome Abies procera glauca, also known as the blue Noble Fir, planted by my late father-in-law about 70 years ago. We were sad to see it go but it seemed a wise precaution at the time.
It seemed an even wiser decision when we took a direct hit from Cyclone Dovi in mid February. As massive trees crashed down around us, we could at least take comfort from the thought the abies was not going to fall on us as we sheltered indoors.
When Cyclone Bola hit parts of Taranaki and then the East Coast in 1988, it largely bypassed our little corner of the countryside. The winds were strong but nothing too far out of the ordinary. New Zealand is a windy country and we are used to that, but there hadn’t been any cyclones in our area in the intervening 34 years which is why I hadn’t put it on my mental bingo card.
I garden on a fairly expansive scale, with my husband, Mark. It is a property that has been handed down the generations of his family since 1870 and we know who planted which trees and when. Some of the trees are now 150 years old, planted by Thomas Jury, and we know the old pine trees are pretty much at the end of their life. They are not helped by the fact Thomas’s son, Bertrum Jury, topped them at about 10 metres high in the early years of last century. It didn’t stop the pines from growing and the biggest are now up to 45 metres but with a weak point where Bertrum cut them. We have had some snap off at that point and others that uproot entirely and fall.
Why, you may wonder, do we not bite the bullet and get all the pines felled? It is just too big a job. We can’t get heavy machinery into that part of the property and it would probably have to be done by a massive logging helicopter. We are not in that financial league and, where those trees are, when they fall, it is only our property that gets damaged so they are not a risk to others.
Besides, we can cope when big trees fall one at a time. We are used to that and can go in and do an efficient and speedy clean-up. Losing several at once, as we did with Cyclone Dovi, was rather different. It wasn’t just the damage from falling pine trees; we also lost a giant gum (eucalyptus) at our road entrance that was also 150 years old and Mark literally had tears in his eyes when he found another abies – a baby at just 70 years but one of our most handsome trees – uprooted in the park and lying over our high bridge. Those were just the largest trees. There were smaller trees and branches down everywhere.
Mark and I went into shock for the first two days, paralysed by the scale of the clean-up task that lay ahead. Fortunately, most of it was garden damage, not structural damage, and we have good people around us. It did not look so overwhelming when we eventually got power and running water restored and the most urgent areas were being cleared. A fair number of homes in our local town of Waitara will be heated by firewood and pine cones after I offered both free, on a local Facebook page.
When big trees fall, our approach is now tried and true. Attempting to remove the fallen tree in its entirety would cause huge amounts of additional damage to the area and add considerable expense. We go in and remove all the debris, the foliage and side branches on the tree. We will cut through the trunk where it is blocking paths or access but we leave the main length lying where it fell.
I use ‘we’ in the royal sense. I do not chainsaw and I would not like to mislead with a mental image of me in work boots and ear muffs wielding a noisy chainsaw. My strengths lie more in the lighter aspects of cleaning up and reinstating gardens around the remaining trunks.
Within a year, we can have those fallen trunks nestled into the garden with plants thriving on and around them and they can gently decay over the years. Instant, unplanned stumperies, one could say, or a pragmatic gardening solution.
The conundrum is that we know one of the ways to mitigate climate change is to plant many trees. Big trees. Long-lived trees. A dwarf apple or maple is not going to contribute to saving the world. But with climate change, we know also that we will get more extreme weather events and that can bring those big trees down.
Power companies and linesmen are not tree-lovers. I can understand why when I saw trees on three roads around us bring down lines in the cyclone. I was relieved that none of them were our trees. It is a fine line to tread. We monitor our trees that could endanger power lines or buildings and have already dropped some that we deemed too risky.
The answers seem to be: plant trees, lots of trees if you have space, not just for future generations and to help the planet but also for the pleasure of watching them grow. But choose the spots carefully so that they have a chance of reaching maturity without threatening power lines or buildings and without casting unwanted shade on either your own house or the neighbours.
Don’t believe the heights given on commercial plant labels – these are often conjured out of thin air to make the tree seem less threatening to the customer or, at best, are what might be expected in the short to mid-term. If space is limited, consider narrow, columnar trees that give height and grace without spreading or casting much shade. Trees which stay lower often spread widely instead, taking up much more space without giving stature in a garden.
Think long term. Some trees can live hundreds of years. While a tree can achieve some size in 20 years, they are not mature – not by a long shot. From about 40 years on, you can start to claim you have mature trees. Trees are generally low maintenance, but that does not mean no maintenance.
We will be keeping a closer eye on our higher risk trees after Cyclone Dovi.