Tag Archives: Tikorangi: The Jury garden

Garden Lore: Another tree falls

Poor old Picea omorika

Poor old Picea omorika

Behold, a fine example of why most trees are best kept to a single leader. A short, fierce storm 10 days ago brought down part of our Picea omorika. This tree is several decades old – five or six maybe  – and is over twelve metres tall.

It reached about four metres before it forked into three trunks so it would have needed a good ladder to deal with the issue then but it is one of those jobs that nobody ever got around to doing. The first trunk was broke out a couple of years ago, having been exposed to wind after damage to a nearby tree. The second trunk has just fallen. Fortunately, while tall and dead straight, the only damage caused was to the flashing on the side of the shed roof. The third trunk is still in place but precariously swaying. It is highly likely it will snap off at some point in the future though we have ascertained the direction it will likely fall and it won’t be too problematic. The loss of the other two trunks leaves it one-sided, exposed and vulnerable.

Some trees have the shrubby habit of branching from the base and putting up multiple leaders. Magnolias Leonard Messell and Apollo are examples of this. Trying to keep these to a single leader is fighting nature. But most trees grow up on a single leader for maximum strength. In terms of long-lived garden specimens, they are stronger structurally and look better if the trunks are not allowed to fork low down. It is a great deal easier to do this when the plants are young than to clean up at the other end of several decades of growth.

The folly of allowing trees to develop multi leaders

The folly of allowing trees to develop multi leaders

Tikorangi Notes: Sunday March 15, 2015 Mostly about saving native trees

Schefflera septulosa in flower

Schefflera septulosa in flower

Without the discipline of a weekly newspaper deadline, it is frankly alarming how quickly I find myself slipping out of the pattern of regular writing. I realise how focussed I was all the time on ideas and images to share, always thinking ahead. But I shall show discipline and application, dear Reader, because otherwise my ideas of writing a book will fade forever into pipe dream territory.

I shall set myself an easy task, I thought, and just rattle off a Plant Collector on Schefflera septulosa for starters. But a quick check shows that I had already done that three years ago. It is the story of my life as the years of writing rack up. What caught my eyes and ears this week was to walk beneath a plant of the aforementioned schefflera and to hear the hum of hundreds of busy honey bees. The flowers are not spectacular and I must admit that, not being the world’s most observant person, I had not noticed them before. As we do not have any beehives around us, we are delighted to see such large populations of bees in residence. It is a sign that we are managing a good ecosystem for them.

Foliage on our own kauri tree

Foliage on our own kauri tree


The felling of mature native trees in urban locations, done in the name of “modern progress” and “economic gain” is big news at the moment. Sustained protests in Auckland have seen the Western Springs pohutukawa (6 large trees) saved from the motorway widening exercise and a reprieve for a mature kauri due to be felled to make way for an outside deck on a new house in the bush-clad suburb of Titirangi. The age of the kauri was declared at 500 years and immediately challenged by those who think any environmental protest undermines economic wealth. Honestly, it becomes academic as to whether it is 200 or 500 years old, but for somebody to describe it as being a “newbie” is just ignorant. It is a significant surviving tree in a rare remnant of forest which pre-dates European settlement. I cannot think that other developed countries – particularly the UK – would countenance a developer cutting down such notable trees.
Our own kauri is but a young tree at 65 years

Our own kauri is but a young tree at 65 years

I headed down to photograph our kauri in our park. It is a juvenile at a mere 65 years old but has achieved a remarkable stature in that time because it was planted in prime conditions without competition from other plants. It would be nice to think that it may survive many generations into the future. The botanical name is Agathis australis but it is usual in New Zealand to refer to these by their Maori name of kauri.
The Waitara #Pohutukawa23

The Waitara #Pohutukawa23


In the meantime, our own battle to save 23 mature pohutukawa on the river bank in our local town continues. The local authorities are less receptive and responsive than in Auckland. Indeed, the Auckland pohutukawa team sent down their banners, bunting and yarn bombing for us to use on our Waitara 23. They survived many weeks in Auckland without mishap but a mere 24 hours in Waitara before the engineer contracted to the Regional Council saw fit to rip them down, damaging many in the process. So much for the right to peaceful, democratic protest in Taranaki. The tattered and damaged “regalia” was eventually returned and will be hung again today as a reminder to the council that this issue is not going to die a quiet death.

If you feel like adding your voice, to tell the Taranaki Regional Council that felling mature native trees is not just a local issue and that people beyond are watching, please visit our on-line email campaign and add your voice. Numbers matter and your support will be much appreciated.
???????????????????????????????We are inching gently into autumn and the under-rated belladonnas are in bloom. I am looking at these with new respect and thinking that they may warrant bringing in from the roadside to some of the areas of naturalistic garden. I dislike the descriptor “naturalistic gardening”, which seems clumsy to my eyes, but it is more accurate than “wild gardening” which may suggest weedy chaos to some.
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???????????????????????????????And finally, I leave you with Man, Planet Junior and Dogs this quiet Sunday morning – Mark heading over to his vegetable patch with a treasured implement from times past which he still uses on a regular basis.

Bamboo but where are the panda bears?

Phyllostachys edulis but, alas, no panda bears

Phyllostachys edulis but, alas, no panda bears

We have the odd stand of bamboo around the place. This giant form is Phyllostachys edulis.

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There are no fewer than 42 different species that giant pandas eat. Mark told me that P. edulis is one of them so I briefly entertained the cargo cult dream – grow the food and wait for them to arrive – but sadly that seems unlikely. A net search does not highlight P. edulis as one of the pandas’ preferred species so maybe that is the problem? We have
tried harvesting the young shoots to eat and they were fine, if n???????????????????????????????ot sufficiently inspiring to ensure that they became a dietary staple. It is, however, a useful source of very long and remarkably stable poles. One is a prop for the washing line. Mark uses it to build shelter frames for his bananas and even to make super long handles for the rake he uses to clean out our ponds. Inspired by our awe of bamboo scaffolding in Hong Kong, seen on high-rise buildings, he threatens to construct our own scaffolding but I think it is all talk.
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I photographed this bamboo screen in a Herne Bay garden during the recent Heroic Gardens Festival. It was a lovely small town garden which successfully utilised pretty much every bit of available space to integrate the indoors and outdoors as living space. I really liked the informality of the screen, with the varied lengths of bamboo rather than forcing them into uniformity and the natural weathering process. Mark was particularly taken by the close-up photo showing how the lengths were held in place. Cable ties – a wonderfully simple idea.
??????????????????????????????????????????????????????????????Also seen at Heroic was this crafted bamboo gate in a Mount Eden garden, which was beautifully executed and appropriate to the restrained, immaculately maintained sub-tropical back garden. This is located in the heart of a densely populated urban area but the garden gives no hint of that. The gate has clearly been coated, presumably both to prolong its life but also to stop the weathering process and preserve the smart, new appearance. Sealing the bamboo will also stop the growth of lichens.

 

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???????????????????????????????At the other end of the sophistication scale, I photographed these two bamboo gates in an Okato garden last spring. These have been added on to existing gate frames in a garden where many different bamboos are grown, and then left to weather over many years. You can see the high humidity environment and clean atmosphere in our coastal Taranaki that encourages such abundant lichen growth. As long as the bamboo is kept off the ground, it can last a surprisingly long time.

The best bamboo collection we know is at Paloma, Clive and Nicki Higgie’s garden at Fordell, near Whanganui. Bamboo enthusiasts will find much of interest there. But no panda bears, alas.

Paloma Garden

Paloma Garden

Garden lore: The Agapanthus Conundrum

???????????????????????????????Overseas gardeners find our attitude to agapanthus perplexing. These plants are much more prized elsewhere, whereas we largely consign them to roadsides. It is much rarer to see them used as garden plants in New Zealand, even though there are some very good named cultivars which are sterile, so don’t set seed. Their future is sometimes under threat as they are seen by some to be noxious weeds. And they are very difficult to get rid of if you no longer want them.

But I think our summer roadsides would be dull without them. While they set prodigious amounts of seed, these do not appear to spread far and certainly the birds are not expanding the range. But such is the concern, that we try and get round to removing the spent flower heads and we feel obliged to stop them from encroaching on the neighbours’ boundaries.

???????????????????????????????This leaves the problem of what do with the seed heads. While we make a hot compost mix, it is not always hot enough to destroy viable seed. In the past, I have been guilty of putting seed and noxious weeds out for rubbish collection but we now think that sending even very limited amounts of green waste to landfill is not justifiable.

This year Mark has set up large barrels into which unwanted seeds and bulbs are put to soak in water until they rot down. It would give a valuable liquid fertiliser but liquid feed has not been part of our routine so it is more likely to all end up in the compost heap eventually. Allow at least a month for the rotting process to take place.

If you want to get rid of clumps of agapanthus, most people will have to get digging. The most common weedkiller, glyphosate (Round Up) is largely ineffective. To spray, you have to resort to heavier duty, controlled brush killers like Grazon and few people have access to these. It may be the difficulty of eradicating existing plants that puts most people off the plant, more than their seeding ways.
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February in the garden

Giant allimns at Mount St John in Yorkshire

Giant allimns at Mount St John in Yorkshire

February can be a quiet time in the flowering garden for us. It may sound bizarre to those who live in drier climates, but the mid to late summer period is largely green here. We don’t irrigate and rarely water anything except the vegetable garden. That is the advantage of summer rainfall. It is currently the hydrangeas that bring the most summer colour.

We have never gone in for summer bedding plants and any annuals are self seeded so more inclined to make a show in the earlier months of spring and summer. There aren’t a lot of trees and shrubs that bloom in midsummer and most bulbs peak from later in autumn through to spring. Essentially, it is perennials that give the summer colour and we have only just started getting to grips with that group of plants on a larger scale.

We have made two trips to England to see summer gardens.  We do late winter and spring gardens that we do so well here in the temperate north but summer gardens have been a steep learning curve for us. What is interesting about the modern English plantings – heavily influenced as many are by Dutchman, Piet Oudolf – is that they have shaken up the labour-intensive classic herbaceous border into styles which are more sustainable, easier to manage and contemporary in style. This means they are cheaper to run, too.

Geraniums, linaria and one of the white umbelliferous plants of the Queen Anne's Lace type at RHS Wisley Garden

Geraniums, linaria and one of the white umbelliferous plants of the Queen Anne’s Lace type at RHS Wisley Garden

Our conditions are not the same so there is a trial and error process. We are looking for a midline.  Mass plantings of a single variety, a trend much favoured by modern landscapers both here and overseas, are not for us. Frankly, we find them dull in most situations. But too often, underplanting with perennials may aim to be ‘cottage garden style’, or maybe layered, but descends instead into a mismatched hodgepodge of little merit. There is so much to learn.

It is the different plant combinations that make a garden zing for us. Not only must plants be compatible in growth habits and growing conditions, but there is the complex issue of getting a succession of different plants to take the display through the whole season. We don’t want a summer garden that looks brilliant for three weeks. We want it to look good for up to six months and okay for the remainder of the year. That is a whole different ball game.

Baptisia and buddleia in the plantings designed by Penelope Hobhouse at Tintinhull, Somerset

Baptisia and buddleia in the plantings designed by Penelope Hobhouse at Tintinhull, Somerset

February will show me whether I am on the right track with my most recent efforts last winter, reworking a couple of areas of the garden. It must be the third or fourth time I have redone one particular area so I am hoping I have it looking better this time. I have gone for much more grouping – larger blocks each containing maybe three different bulbs and perennials to try and take each block through the year with something of interest. Pansies, nigella, white cosmos, linaria, alonsoa and poelmoniums are allowed to seed down to break up any rigidity between the blocks of planting because I want a soft effect, not hard-edged designer style.

I am not going to show it in photographs until I am happy with how it is looking. So my photographs this month are all of combinations that caught our eye in English summer gardens. I would like parts of our garden to look a bit more like these and a little less green in February.

068 - CopyFirst published in the February issue of New Zealand Gardener and reprinted here with their permission.