Mark is feeling anxious. At this time of the year, the very large Abies procera ‘Glauca’ just out from our back door is dropping its cones. Very large cones they are, and prolific too. We know not to park the car beneath the tree lest the panel work get dented. However, one falling cone almost took Mark out yesterday, hitting the ground mere centimetres in front of where he was walking at the time. The tree was planted by his father who relocated it from the rockery in front of the house when it was clear that in fact it was neither very slow-growing nor a dwarf specimen as he had thought. Unfortunately, the site he chose is less than ideal, being close to the house and immediately beside the driveway.
I doubt that should a cone land upon the head of a passing human, it would do major damage but it would not be a pleasant experience. And at the back of my mind, I recall a story some years ago of a poor woman in an Auckland park being killed by a falling seed cone – from a palm tree, I think. That is seriously bad luck.
While on the subject of falling plant material – and leaving aside our elderly Pinus radiata and eucalyptus which have been known to fall from time to time – the fronds from assorted palms can be fairly major. The photo is of a nikau palm, breaking off close to the ground so any damage is minimal. But the falling fronds from our Queen palms (Syagrus romanzoffiana) can wreak some havoc, breaking entire branches from the shrubs beneath them. When you look up, they don’t look worrying, but when they fall, they are often a good 4 metres in length and the curved pod of the leaf – still technically a petiole, I think – is as heavy and solid as wood. They could serious damage to a car beneath or indeed rip the spouting off the side of your house if you have it planted close by.
When it became all the rage to plant palm trees in Auckland in the 1990s, we couldn’t help but think that many folk did not realise how large they can grow and how much damage mature falling fronds can then cause.
Hindsight is a wonderful thing and as gardeners, we tend to make our big planting mistakes early in our years. These can certainly come back to haunt us, or indeed subsequent property owners, many years down the track. At least our Queen palms are in locations where falling fronds are not a huge issue but we have learned not to plant any special trees or shrubs beneath them. The alternative is to only grow plants up to 2 or 3 metres in height and that simply would not do at all for us.