Monthly Archives: January 2013

Garden lore

” There are some botanical names that are teasers. Where the Polish discoverers or Russian explorers come upon the scene the result is apt to be an appalling jungle of horrors. Michaux, Stribnry, Przewalsky, Tchihatchew are responsible for some real jawbreakers; and when it comes to Michauxia tchihatchewi, exhausted humanity gives up in despair.”

My Rock Garden by Reginald Farrer (1907)

Just a few of my aged concrete pots - far too heavy to use with ease

Just a few of my aged concrete pots – far too heavy to use with ease

Making your own plant containers

I was looking at step by step instructions for DIY concrete pots in a NZ publication and have one word of advice: don’t. I inherited concrete pots from my in-laws, made in the days before mass produced ceramic pots became so cheap and widely available. They look aged and anonymous but over the years, I have found I use them less and less because they are just too heavy to be convenient. If you want that aged look, go back to hypertufa which has been used since 1930 to recreate a weathered stone look. There is plenty of information on the internet but the general recipe for hypertufa is 1 part cement to 3 parts aggregate (often a mix of perlite, peat moss or river sand). It is no more bother than making pots completely out of concrete but much lighter to handle.

First published in the Waikato Times and reprinted here with their permission.

Plant Collector: Hydrangea serrata “Preziosa”

Hydrangea "Preziosa" - generally colour stable in all soil conditions.

Hydrangea “Preziosa” – generally colour stable in all soil conditions.

In the world of summer flowering shrubs, hydrangeas are surely king. There are many others beyond the common macrophylla types and the serrata family from Japan and Korea are perhaps a little more refined. Certainly they are smaller growing and perfect for semi shaded positions. “Preziosa” is a hybrid but predominantly of serrata lineage. It is a smaller moptop – the pompom type of flowers. Two factors set it apart from many others. Its colouring is not affected by soil type and its flowers change colour as they age so you get a range of different colours on the one bush. They open green, changing through yellow tones to cream, fading to white with pink tinges on the petals, then deepening to pink shades and ending up dark cherry red. It also has attractive red stems and the foliage is often tinged red.

“Preziosa” is a not happy in full sun and it particularly dislikes hot, dry conditions. I moved these plants from an area where there was too much root competition from surrounding trees and they perked up enormously in well dug soil with plenty of compost added but still in open shade. They reach about 150cm in height and a metre wide, making them a good option for smaller, town gardens.

First published in the Waikato Times and reprinted here with their permission.

Lower maintenance gardening

Do away with island beds in the midst of the lawn if you want to reduce maintenance

Do away with island beds in the midst of the lawn if you want to reduce maintenance

I thought I would spare readers from the New Year’s gardening resolution column. Most will resolve to weed more often and keep their garden looking tidier, only to fall by the wayside very quickly. So it is onto lower maintenance gardening this week.

Note the qualifier – lower maintenance. I don’t think there is any such thing as low maintenance gardening. These are mutually exclusive concepts. The only way to eliminate gardening altogether is by living on the upper floor of an apartment block.

You can do away with plants and pave, seal or turf your entire section but that should not be confused with gardening. Nor does it eliminate all maintenance. Paved areas need attention. Weeds will forever pop up in any cracks or gaps. Dust and grit accumulate and need to be swept or blown away. Shaded areas will grow moss and lichen and may become slippery. There is nowhere for the family pet to do its business.

You can grass out your section but it will need mowing. It will need a whole lot more than just mowing if you want a proper lawn. Maintaining even a half way decent lawn takes a surprisingly large amount of time and effort. But at least you can get a lawn mowing contractor in and trust him or her to get the grass down. But that is not a garden, either.

Gardens have plants and plants are tricky, messy and unreliable living organisms. They grow. They drop bits. Some grow too well, others not well enough. They also have the capacity to delight and to surprise, to soften a view and to blur the hard edges, particularly in an urban environment. It is about much more than just feeding the body by growing edible plants. You can wrap it up in a spiritual framework if you wish or you can be more prosaic in your terminology but the bottom line is that it is a rare person who remains oblivious to the beauty that is in nature and plants are integral to that. Most of us are driven to recreate some of that nature in our immediate environs. And if you want to stay on good terms with neighbours, an ugly wasteland is not going to do it.

So, to dispute some common myths about low maintenance gardening.

  • Evergreen plants are not low maintenance. They still drop a full set of leaves every year. They just do it gently all year round rather than in one big hit like deciduous plants.
  • Vegetable gardening is probably the highest maintenance form of gardening there is. Forget any advice that you can have a low maintenance yet productive vegetable garden.
  • Similarly, you can’t just plant an orchard and leave it, expecting to harvest fruit in season. Most fruit trees require regular attention; some require a great deal of care.
  • Simple gardens or formal gardens defined by sculptured plants (hedges and the like) are not easy care. They depend on pristine maintenance for their effect. It is like doing the housework but outdoors and no sooner have you done it than the wind will blow or the plants will grow. You can’t keep the outdoors static.
Roses need more care than many other plants if they are to look good

Roses need more care than many other plants if they are to look good

If you want to reduce your workload however, there are certain things you can do.

Shun plants which need staking each season if you want an easier care garden

Shun plants which need staking each season if you want an easier care garden

  • Don’t have island beds and specimen trees or shrubs sitting in the middle of the lawn. It is easier to do a clean sweep with the lawnmower than to be weaving around curvy obstacles. It also cuts out the potentially messy edges you get around island beds.
  • Reduce the number of itsy bitsy little beds and plantings that you have. Keep the lines simple.
  • Reduce the number of plants you have growing in pots and containers. These take quite a bit of effort to keep them looking good, as evidenced by the number of sad, neglected, even dying plants you can see all round different gardens.
  • Weed thoroughly and then lay a weed free mulch to suppress further germination. Try and get weeds before they are large enough to set seed and remember the old adage: “one year’s seeding, seven years’ weeding”.
  • Leave enough space around plants to be able to use the push hoe and if you haven’t got a push hoe then get one, learn how to use it and keep it sharp. You can then do the summer weeding without bending – but only if you do it before the weeds set seed. There is no point in hoeing out weeds and then leaving them lying on top if they are going to spit out their seeds on the spot.
  • Do away with plants which require frequent attention to keep them looking good. The prettiest but worst offenders are probably roses and wisterias. Most plants will need a little attention once a year, but some plants need much more than that. Similarly, do away with plants that need to be staked to stop them flopping all over the place.
  • Do not garden in such a manner that you have to water frequently in summer.

When I used to pay someone to do my housework, I felt privileged but not ashamed. The same goes for gardening. If you don’t get pleasure from doing it yourself and you can afford it, pay someone else to come and do it for you. A lovely garden is a joy to all, but getting there is not always fun.

First published in the Waikato Times and reprinted here with their permission.

Garden lore

” Many gardeners will agree that hand-weeding is not the terrible drudgery that it is often made out to be. Some people find it a kind of soothing monotony. It leaves their minds free to develop the plot for their next novel or to perfect the brilliant repartee with which they should have encountered a relative’s latest example of unreasonableness.”

The Well Tempered Garden by Christopher Lloyd (1973)

Thwart the wisteria's plans for breaking the spouting

Thwart the wisteria’s plans for breaking the spouting

Blue Sapphire is making quite a good effort at repeat flowering this summer

Blue Sapphire is making quite a good effort at repeat flowering this summer

Summer pruning wisterias

If you have any wisteria, summer prune them now. They are rampant growers and all their soft tendrils will wave around until they find somewhere to anchor themselves. If that somewhere is between weatherboards, the spouting and the barge board, underneath the verandah roofing or similar, all it takes is one season for such growths to thicken, become hard and woody and cause damage. I write from experience. We had to replace a length of split spouting.

Technically, summer pruning of wisteria should be trimming all those new growths back to the sixth leaf bud from the stem though I admit I don’t count the buds when I trim back. Cut with secateurs, stem by stem, not with hedge clippers if you want flowers next season. Winter is the time for the main pruning which shapes the bush. All those growths are then reduced to two buds from the stem. That is where they will flower.

Failure to flower at all in spring is usually a result of incorrect pruning. If you don’t want to prune your wisteria, my advice would be to take it out altogether. Left unpruned for several years, it will become a triffid of scary proportions.

First published in the Waikato Times and reprinted here with their permission.