
The stone mill wheel serves as a bird bath and is used often, this time by a tui
Were I starting a new garden from scratch, especially a large garden, I would reduce the number of beds and borders. And I would be more rigorous in separating the highly detailed areas from the broad sweeps of plantings.

Pleione orchids in spring. At this time of the year they are dormant and can be lifted, cleaned up and replanted.

The little mill wheel bed is a highly detailed area
I am perfectly happy doing highly detailed gardening. Micro gardening, I call it. As I lifted and divided big clumps of pleione orchids, I decided it was the gardening equivalent of surgery. But I want my areas of highly detailed gardening limited and confined. We have a large rockery which requires close attention, the sunken garden and the millwheel garden. It was the little millwheel garden that I was going through earlier this week. It is full of seasonal detail like the aforementioned pleiones, blue lachenalias, fritillarias, erythroniums, dactylorhiza orchids and similar tiny treasures along with a few choice shrubs like species camellias and small rhododendrons.
The mistake I made over time was to grab pots of such treasures from the nursery (in the days when we still did the full range for mail order) and tuck them into odd places here and there. Everywhere, really. Now I am trying to reverse that and lifting such little gems to relocate out of mixed borders.

Bolder plantings in bigger sweeps need treasures that are in scale to the other plantings, not small detail.
Away from these highly detailed areas of planting needing close maintenance, I want bigger sweeps of bolder planting. I love how our avenue gardens have shaped up with the bigger sweeps of interesting shade perennials. It is the itsy, bitsy, inbetween stuff that I do not enjoy doing. The mixed border – too often the hodge podge border – has a lot to answer for. We have too many borders and beds like that and they are hard going.

The round garden was a design aberration and has never been successful

Hand-hewn stone artefacts dating back to pioneer forebears
I didn’t just strip out the old rose garden. I am also nearing the end of clearing another design aberration – a round garden in the front lawn which had evolved over time to something less than satisfactory. The defining concrete mowing strip has been removed, as have the bulbs and smaller plants. It is just waiting for Mark to remove the dwarf lollipop camellias and the Graham Thomas rose. All that will remain is the umbrella Magnolia laevifolia in the centre and the stone artefacts which are of interest. One is a shaped corner stone which used to be placed to protect the early timber buildings in settler New Plymouth from being raked by passing cart wheels. Another is a small stone trough Mark’s mother collected, hand-shaped of course and the centrepiece is another mill wheel. This wheel is a small inner wheel from a domestic grain mill in the Te Henui stream area in New Plymouth. Mark’s parents gathered these historical pieces back in the 1950s when nobody else valued them and the records have been passed down orally. We don’t do much in the way of ornamentation in our garden but we appreciate our small collection of historic artefacts.
I am also eyeing up another three short lengths of garden border and thinking I may strip out the messy underplanting. There are sufficient shrubs in those borders to carry them without the need for ground cover detail as well. A mulch of leaf litter or compost is all that they need. It is just quite a bit of work to lift everything and reuse the plants and bulbs that are of value. If we gardened less with bulbs it would be easier but our bulbs represent many years of building up large numbers of different types, many rare and curious, and are a feature of our garden.

Not every wall, fence, pathway or building needs an edging border of planting. We had our first visible frost this week – we don’t get too many of these each winter.
There are several lessons I have learned through all this:
- Gardens evolve over time and we often don’t step back to look with critical eyes at the current picture. Sometimes, they do just become a mishmash, especially if you are the sort of gardener who tucks plants in to fill spaces. Or they become dominated by thugs which take over and swamp out the more desirable plants.
- Tiny treasures and small detail need to be accommodated in designated areas where they won’t get overtaken by competitors and where it is easier to carry out the more careful, intensive maintenance that they require.
- It is still possible to get detail and variety into larger scale plantings but the detail needs to be larger in scale.
- Not every area needs the oft recommended three layers of planting (ground cover, middle layer and upper canopy or backdrop (recommended, I think, to get the lush, well furnished look).
- Not every pathway, driveway or building needs a side border to complete it. There can be too many bits and bobsy borders and beds. Fewer may be more effective and certainly makes for easier management.
- Mixed borders are difficult to manage well in the long term (mixed borders being a mix of woody shrubs, perennials, climbers and sometimes bulbs).
- Most perennials perform much better if you lift and divide them, replanting them in well-dug soil. Some, like polyanthus and pulmonaria, benefit from lifting and dividing every two or three years in our conditions. Others like hostas, can usually be left for about ten years before they start to go back (by ‘going back’, I mean they can reach a point where they get smaller, not larger).
As I have said before, if there is an area of your garden where you avert your eyes every time you walk by, there is a problem that needs to be addressed. It won’t get better if you ignore it. Sometimes it needs drastic action.

Godwottery! A friend gave me 



One of the delights I appreciated at the Heroic Gardens Festival was this quiet, simple green space in the back garden owned by photographer, Gil Hanly.

The little temple by the water (top) is, I am told, by artist, Bronwyn Cornish. For me it evoked the very old villa visible in a ravine in Sorrento in Italy (immediately above) which I photographed back in 2008. Anyone who has been to Sorrento (the jumping off point for Capri) will have seen this sight. In the Hanly back garden, the whole effect was understated but hugely effective.
1) Timber remains the most common choice, probably based on price and the DIY ethos. It is holding back a considerable weight of soil that will be wet and exerting outward pressure, so strong construction is critical. Walk around established suburbs and you are sure to find older timber retaining walls bulging outwards. You need to get the supports right, both horizontally and vertically, to keep it all in place. Milled timber must be tanalised to ground retention grade or it will rot quickly.
2) A cut stone wall is permanent, aesthetically pleasing and probably the most expensive option. The part-time stonemason here critiques my photos of modern stonework, pointing out that the stones should be keyed in to each other (as brickwork is). You should not be able to pick out vertical lines running down the wall because these are a point of weakness which indicate that it is the mortar holding the stones together. I mention this in case you decide to commission a stone wall of your own.
3) Immediately next door to the attractive stone wall is the DIY option – although probably involving some lifting machinery to get the rocks in place. These have cement laid between them, which is unlikely to be structural but merely to keep out weed growth. Keen gardeners might prefer to plant between the rocks. Interestingly, some gradient has been left here rather than the vertical cut seen on the adjacent stone wall. Allowing a gradient reduces the outward pressure the retained ground will exert.
4) Further down the same street, I found the true DIY option. Smaller stones, able to be lifted by one or two people, have been placed and the area has been turned into a rockery on a sloped gradient again. Once established, plant roots will hold a certain amount of soil in place. The owner of this frontage is clearly a keen gardener.
5) Ugly functionalism at its worst – and I can say that because this is on a property we bought. Concrete blocks have been used to retain the straight sections, poured concrete on the curves. It does the job. That is all there is to say. If I still lived in that house, I would be contemplating plastering and painting the retaining walls to try and make them a little less brutal.
6) Faced with a similar situation to the preceding photo, this example shows what a little more thought, imagination and money can achieve. These are blocks – though whether a soft stone or aggregate, I am not sure – but a much superior look in aesthetic terms with the softer edges and random sizes. What also makes a big difference here is the flat capping on the top of the retained sections. It is a stylish finishing touch.
7) The same bottom layer of retaining wall has been used throughout this modern subdivision. This house shows a mix of materials used in the quest for privacy, ground retention and street appeal. It was so well executed that I suspect a professional was employed to achieve this effect. The usual advice is not to mix materials but you can see the use of cobblestone bricks, timber, hedging and a relatively wide palette of plants. Prostrate plants are being used to retain the sloping bank.




In the meantime, “The New English Garden” by Tim Richardson, published by Frances Lincoln, is more than a coffee table book. The sumptuous photographs and presentation are complemented by an intelligent and discerning text. Perhaps the problem is that we New Zealanders are still visiting only the most famous gardens and the existence of a whole new style has so far bypassed us. We are heading back this June to have a closer look.