Try a taste of the Exotic

TRY AN EXOTIC FRUIT     

The Scottish climate is very favourable for growing a wide range of both soft and top fruit but this range can be extended if we have the benefit of a south facing wall in a sheltered location. We all love a challenge, and trying to get a crop from a plant everybody knows needs a warm sunny climate really tests your gardening skills. We have heard so much about climate change and global warming that we begin to believe that the weather might just warm up and we can then contemplate growing those plants usually confined to the south of the country.

A few years ago I started trying out a range of different grapes on my allotment to see if our climate has now warmed up sufficiently to find a good cropping grape. The allotment plot has great soil, a south facing slope and excellent drainage. I have cultivated it quite deeply over the years and added plenty of manure and compost. What could possibly go wrong.

All the grapes grew vigorously, though training and pruning kept them under control, but where are all the grapes. Maybe I have not yet found the right variety, though more likely this global warming is just a political myth, or it has not yet reached Scotland. The climate has certainly changed. It is more predictable than ever and extremes seem to be normal. We did get a heatwave a few years ago but what about this year. It will be remembered for the long cold severe winter followed by severe spring gales, thunder storms and a cool wet summer with very little sun.

However, we shall continue to experiment with the more exotic fruits just in case climate change brings in a wee bit warmer weather once in a while. Last year I got over forty figs and a dozen peaches. That made all the work and effort well worthwhile.

I can take advantage of warm south facing walls and fences around our house which sits on a south facing slope, but unfortunately we do not have shelter being exposed to the prevailing winds.

Grapes

My first range of grape varieties were just not suited for growing this far north, but I am now trying out one called Solaris recommended for more northerly locations. This time it has the benefit of a south facing fence. The ornamental variety Brant grows and fruits extremely well on my south facing house wall. It produces about 100 small bunches of black sweet juicy grapes in early September. It is the success of this one that makes me feel they will work if I can get the right variety.

Figs

I first tasted a Scottish grown fig about forty years ago. A farmer friend near Montrose grew them in his garden and was delighted to be able to offer me these exotic fruits. I had never tasted a fully ripe fresh fig just picked from the bush. It was absolutely delicious, so I have had a fig tree in the garden ever since.

They are very easy to grow, and normally quite hardy though last winter put that to the test. They suffered a fair bit of die back in spring with a loss of most of the fruit buds. However growth soon resumed with great vigour, though this year I am down to a handful of fruits.

Brown Turkey is still the best variety and growth needs to be restricted by growing them in a slab lined pit about three feet square with plenty of brick rubble in the bottom for drainage. I train mine on a south facing wall to give them the warmth to ripen up the fruits. Watch them very carefully as they ripen as in our wetter climate botrytis can be a problem when you leave the fruit to ripen to its deep purple brown colour.

Peaches

Another fruit that needs the warmth of a south facing fence or wall. My peach Peregrine is very hardy and growth was unaffected by last winter. In fact the long winter was a distinct advantage since flowers did not appear till quite late when danger of frosts had passed. However there was a distinct lack of pollinating insects so my sable brush was used daily to help pollination. The flowers did not look very strong and cool conditions did not help fertilisation, so one by one the flowers failed to set and fell off, apart from one. It will not take very long to bring in this year’s harvest.

However this will give me more time to concentrate on my other life as the artist as I am now enrolling for my autumn session of evening art classes.

Cape Gooseberry

This fruit from Peru is grown as an annual from seed and often with the protection of a glasshouse. Some people have had success in growing it as a perennial cutting it back to the crown in winter. Glasshouse space is often at a premium with grapes, tomatoes, and cucumbers so I grow mine in the shelter of a south facing fence. The soil is deep, rich and well drained so plants can grow quite vigorously. I let them branch as a wide bush so they do not need staking or pruning. The fruit may not ripen up till well into the autumn, but be patient as when the Chinese lanterns produce their orange berries the wait will have been well worth it. Make sure you get the type Physalis edulis as it has the biggest berries.

Goji berries

This new fruit grows in Tibet, China and Mongolia and is related to the potato. It is a vigorous bush growing up to eight feet tall and may fruit in its third year. The orange red fruit are very high in vitamins, minerals and anti-oxidants. This has been used in their promotion as a superfood, but is largely unsubstantiated by scientific research. The ripe fruit must be harvested very carefully to avoid damage to the fruit which is then dried in the sun like a sultana.

My climbing bushes have not yet fruited, like so many others who are trying them, but one gardener did get a crop from them. Unfortunately it was not to his liking so the bush got dug out.

Maybe next year I will get the chance to put them to the test.

Kiwi fruit

This will only grow successfully outdoors in this area in a very sheltered warm position. They are quite vigorous and some varieties come as separate male and female plants, though there are now varieties such as Jenny that are self fertile. Keep growth under control by pruning similar to grapes.

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Exotic Fruit

EXOTIC FRUIT  

I am constantly amazed at just how far life has changed in my short lifetime. My grandfather had spent a lot of his childhood in India as his father was in the British army posted abroad. I had always loved fresh fruit, but that was mostly an apple or a pear if you felt like going upmarket. He really missed his guavas and mangoes. There was not many of them around Dundee at that time, though they were starting to appear on supermarket shelves in tins. However as a kid I did get spoiled a wee bit when he produced these exotic fruits called bananas. Now that was special, then later in life my older sister discovered pomegranates and went in for them in a big way.

My path in life was being determined for me. After a spell as a gardener, then learning the value of experimentation with new crops while at the Scottish Crops Research Institute, followed by a period working on commercial fruit farms, I developed a strong interest in fruits to grow and eat.

Raspberries, strawberries and blackcurrants were easy, and delicious, but common. An apple tree was a must have plant, but getting the right variety for this area took a bit of research. Similarly pears and plums got purchased just as soon as I had a big enough garden. In these early times my exotic tastes only embraced a slight venture into the less common, such as blueberries, gooseberries, brambles and red currants.

Nowadays cheap travel, television and the internet have opened our eyes and taste buds to the huge range of exotic fruit to sample and where ever our climate and soils are favourable we can try growing them.

Gardening is about having a bit of fun, trying the unusual in the hope for a bit of success, and if it doesn’t work, then move onto another plant worthy of a trial.

Over the years, I have tried figs, peaches, outdoor grapes and autumn raspberries and strawberries and now it is the turn of cherries, saskatoons, aronias and goji.

Some fruit has been tried but discarded as the fruit was just not very pleasant, such as Lingonberries and Cranberries.

Let us look at some of the better ones.

Grapes

These have always been considered a greenhouse plant in Scotland with Black Hamburg being the most popular and successful variety. It is very easy to grow provided you keep it pruned properly throughout its growing period. It does not need any heat so is perfect for the cold greenhouse, but make sure you give it plenty ventilation to prevent any build up of mildew or botrytis. The grapes are large, sweet, juicy and picking continues from September till December, but they do have pips in them. If you prefer a seedless grape try the variety Flame which has red grapes, is very sweet and although the grape is smaller than Black Hamburg, the bunches are bigger. Another seedless variety is Perlette, a white grape. The vine is quite vigorous so keep it well pruned.

I had hoped that global warming would have given the Scots a warmer climate so I can try some outdoor grapes, but all we seem to get is a lot of warm rain all summer. I have tried several grapes outdoors, but with no success so far. After five years they get grubbed out.

However I don’t give up too easily, so this year I am planting the outdoor variety Solaris against a south facing fence.

I grow the ornamental variety Brant on my south facing house wall. It is very successful with a regular one hundred bunches every year. They are small, but the black grapes are very sweet and juicy. These get used for a delicious sweet grape juice for immediate use or it can be frozen.

Figs

This is another plant that really needs a warm spot to ripen its fruits, so a south facing location is advisable. It can grow large so is best planted in a prepared pit lined with slabs to restrict root growth. It will then concentrate on producing fruit. Brown Turkey is the usual variety. There may be a bit of botrytis if the summer is very wet, as the fig prefers a hot dry ripening period.

Peaches

Another plant for the south wall as it needs a lot of sun and warmth to ripen up the fruits. Our last two hard winters are good for the peach as it has delayed the normally very early flowers, thus they are less liable to get caught by a late frost. They need hand pollination with a sable brush, and two sprays of fungicide to control peach leaf curl. Summer pruning helps to remove excessive foliage and allow the sun onto the fruits. I grow the variety Peregrine very successfully, so far.

Cherries and Goji

These can grow very well in Scotland, but it is too soon to report on them. My Goji is in its third year, so may fruit this year. My cherry is the variety Cherokee grafted onto a new very dwarfing rootstock called Gisela 5 which I will train as a fan on a south facing fence.

Saskatoons

I have been growing these now for seven years and the Scottish Crops Research Institute has had them for about forty years so it is well established that they can grow very well in our climate. They will grow in almost any soil. The fruit is very similar to a blueberry but the Saskatoon grows faster and crops a lot heavier. The black berries which are very high in antioxidants, are ready in July, and can be eaten fresh or used for jams, pies, compote, summer puddings, or even used for wine making. Although relatively unknown in the UK, their popularity is spreading and ten years from now they will be as common as the blueberry.

Chokeberry

This is said to be the healthiest plant on the planet because of the extremely high levels of antioxidants in the fresh fruit. However it is a bit astringent if eaten raw, so the fruit is best used in jams, compote, pies and smoothies. It just loves the Scottish climate, so there are several growers already growing them in this area. They are not troubled by any pests or diseases and our soils seem to suit them perfectly. They can be grown as a single bush or even as a hedge.

Autumn fruiting raspberries and strawberries

Raspberries and strawberries may not really be exotic, but by growing them early and late it is pure bliss to get that first strawberry in May, then keep enjoying the perpetual varieties that fruit up to October. Autumn rasps are also a luxury that is well worth the effort.

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