Easy to manage and extremely versatile to use, quinces should be a staple in any garden says our grow-your-own expert Mark Diacono.
Perhaps 20 years ago, I met my first Japanese quince. Dragged somewhat reluctantly to Knightshayes — a National Trust house and gardens in Devon, a hop and a skip from the M5 — I discovered a superb walled garden and an excellent cream tea. Enjoying the latter in a sunny seat against the house, I caught an arm on something spiky. My wife assured me that Chaenomeles japonica, also known as the Japanese or Oriental quince, was the culprit.
Swearing over, I noticed its thorny branches were dotted with lime/yellow fruit that surrendered not even a little to a squeeze, but they did give my fingers the most glorious perfume. Two weeks later, I had planted a couple and they have been ever-present in my life since then.
Unlike the familiar tree quince (Cydonia oblonga), Japanese quince generally grow low and wide — to perhaps 5ft by 6ft — flowering prolifically from mid-winter through spring as new leaves begin to emerge, often when still carrying the previous year’s fruit among the spikes. As with Cydonia quince, the fruit are as hard as a hammer, albeit smaller and often rounder than Cydonia’s pear-shaped fruit. Happily their perfume is of a similar spicy fruitiness, with some of that wondrous sherbettyness that walnut leaves carry. It’s impossible not to lift them to your nose to breathe it in.
At first, I thought of Japanese quince as an excellent alternative to Cydonia quince, largely for anyone with too little space for a quince tree, but the years have convinced me that they deserve their own billing, distinct as they are, for even a large garden. As well as the subtle difference in flavour and scent, Cydonia quince are perhaps the definition of autumnal fruit. Chaenomeles, on the other hand, can be ready to pick in late summer and will hang on to the bush until new year. That they can flower in the coldest months, bringing a little welcome cheer, makes me love them even more.
Happily, they are easy to grow and require little of your practical attention. Tolerant of most soils and semi-shade, in my 20 years’ experience they are disease and pest free, their flowers are resistant to all but the harshest cold and they need minimal pruning.
Pruning is largely about developing and maintaining a good shape, taking dead and crossing branches back to the base or main stem, removing perhaps one-quarter of the oldest stems to keep the plant healthy and uncluttered. It’s best to prune them soon after flowering, as flowering occurs on the previous year’s growth and pruning then allows the plant time to produce new growth before the next flowering season.
Although Japanese quince are happy to grow as a freestanding shrub, they can be encouraged to resemble a small tree of perhaps 8ft in height — there is a glorious specimen overhanging the garden wall that cheers my morning dog walk — and I have seen them both espaliered and fan-trained, which they took to productively.
Grown commonly as an ornamental plant, varieties are bred mainly for their visual characteristics and, in my experience, are as productive as each other: ‘Jet Trail’, ‘Salmon Horizon’ and ‘Crimson and Gold’ are all beautiful and productive. You only need one, as they are self-fertile.
The fruit can be picked at any time once they have reached maturity; you can tell by the scent, their plumpness and from a touch of rosiness to the fruits. Pick them as you need them, as, although they keep well off the plant, they are perfectly happy to cling to the branch into winter and often into new year. Once the fruits start to fall to the ground in numbers, pick the rest immediately.
As with the Cydonia quince, Japanese quince fruit require a little sweetness to make the most of their flavour. They don’t bake as well as Cydonia quince, but, made into drinks, their aromatic sourness is so good and they produce one of the greatest jellies. At the tail of summer, finely grate the fruit into water with a touch of lemon to prevent discolouring and add a little balancing sugar for a wonderfully refreshing summer drink.
For special Christmas presents, to yourself if you are wise, grate about 10 fruits into a large jar of vodka or gin and sweeten with an inch of sugar; allow a couple of months for them to infuse and the resulting liqueur will make winter seem just fine.
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