Growing Currants – ribes nigrum [blackcurrants] , ribes rubrum
– [red and whitecurrants]
Currants – one of our most prolific and useful of the summer
crops includes the most popular blackcurrant, redcurrant and whitecurrant.
When I first took over my plot I inherited several
blackcurrant bushes, a redcurrant bush and a gooseberry bush. In spite of my
best efforts with feeding, weeding, pruning, mulching – the blackcurrants
continues to provide heavy crops of tiny fruits – a pain to harvest and
unpleasant to eat. I eventually decided that there was no reason to hang on to
effectively unproductive bushes. I replaced them with bushes which are now
providing me with fruits which are almost grape-sized and delicious
Sowing
and Growing
Currant bushes are best planted as bare-root bushes when they are dormant – between October and April though, in milder parts of the country they may not have gone into their dormant time by October and may have started to grow by April. Don’t consider planting when the ground is frozen.
Buy from an experienced provider who will supply you with
certified stock.
You can also buy container-grown bushes which can,
technically, be planted at any time of the year though, avoid planting when the
ground is very wet or extremely dry during drought conditions or when they are
cropping.
The plants are fairly tolerant of the type of soil but, prefer
free draining, fertile slightly acid ground in a sunny sheltered position. Although
it is tempting to plant new small bushes quite closely together to ‘pack-in’ as
many as possible, remember as the bushes grow they will spread out. Allow, at
least, 1 - 1½ metres between the bushes.
Prepare the ground well beforehand – clear all perennial
weeds, including their roots. Dig in lots of manure/compost to the site several
weeks before planting. Dig a hole at least twice that of the root ball or the
bare roots when spread out. Fill in the hole with a mixture of well rotted
manure and compost and the indigenous soil. Water well when planted. If
planting bare root bushes, it is a good idea to [unpackage them immediately, if
bought from a supplier on line], soak the roots in water for an hour before
planting and ‘heel’ in well once planted.
Pot grown shrubs can, theoretically, be planted at any time
though, most good suppliers won’t sell them when inappropriate. If you are
planting from container grown – dig a hole at least twice that of the root ball
[see above], tease out the roots from the rootball especially if the plant is
‘pot bound’ [the roots have taken up the whole of the pot space available and
have twined round upon themselves forming a tight root ball].
Weed around the bushes by hand. If you use a hoe you run the
risk of gashing the stem, allowing diseases into the plants. Mulch well around
the plants in the autumn.
Once you have established bushes, you can increase your stock
by taking hardwood cuttings from your own bushes in autumn – only take cuttings
from healthy strong bushes.
Prune your bushes during the dormant season from October to
March. Cut out old wood from the bushes and any diseased or weak stems –
remember that blackcurrants fruit on new seasons stems but both redcurrants and
whitecurrants fruit on old wood. If you remove all of the old wood on these
bushes you will have no crop in the following year. Every few years it is a
good idea to remove about a third of the old branches to encourage new growth.
In pruning, try to encourage the bush to be compact but open, to allow the
light into the bush and for ease of harvesting. Both redcurrants and
whitecurrants can be grown as cordons if you are short of space.
Types and
Varieties
The usual seed and plant providers will only give a limited
range of fruit bushes. For blackcurrants the most popular are Ebony and Ben
Connan.
For whitecurrants, you are likely to be offered Blanco and for
Redcurrants Rovada seems to be the winner These are all good varieties and have
been chosen for their popularity and reliability. In particular blackcurrant
Ebony is an excellent dessert fruit and is sweet enough to eat straight from
the bush.
However, you may be looking for something specific – disease
resistance, bushes which will crop at different times of the season to extent
the harvest, heavy cropping for preserves, juicy fruits for making juice.
It is better to try specialist growers for these different
qualities.
Chris Bowers & Sons – www.chrisbowers.co.uk
Ken Muir – www.kenmuir.co.uk
Welsh Fruit Stocks – www.welshfruitstocks.co.uk
Pomona Fruits – www.pomonafruits.co.uk
Deacon’s Nursery – www.deaconsnurseryfruits.co.uk
Harvesting
and Storing
Currants make the most wonderful, flavoursome and versatile jams
and jellies which can be inspirational in both sweet and savoury contexts.
Like most fruit and vegetables, they are at their best when
eaten fresh but, they can be frozen successfully – one of the few allotment
products I am happy to preserve and freeze.
Nutritional
Value
Excellent
source of
|
Useful
amounts
|
Traces
|
Blackcurrants
A Vitamin C superfood – it contains well more than
the RDA of Vit C
Redcurrants and whitecurrants
Vitamin C
|
Iron, potassium, manganese
Dietary fibre
Vitamin K, Dietary fibre, iron, manganese
|
Vitamins – Vitamin A and E, thiamine, riboflavin,
niacin, B6
Minerals – magnesium,
calcium, phosphorus, zinc, copper
Vitamin A and E, thiamine, riboflavin, niacin, B6,
folate
Minerals – potassium calcium, magnesium, zinc,
copper
|
These berries are low in sodium, cholesterol and
saturated fat
|
Pests and
Diseases
Birds are a major pest with red and white currants
and unless they are well protected by netting they will clear all the fruit
from the bushes before you will consider it ripe enough to harvest. They can
also eat blackcurrants but, I have found that, on our allotments field, they
seem to prefer other, easier and sweeter fruit. Except for a bush which is
inside my fruit cage anyway, I don’t net my blackcurrant bushes.
Big Bud – on
Blackcurrants can be major problem especially on allotments where it can be
endemic. Caused by a mite which lives in the leaf buds, the enlarged buds fail
to develop. Remove the buds and burn them. If whole branches are infected it
will be necessary to remove and destroy the branches. In severe cases, remove
the bushes and replace with new stock n a different place. However, if this
pest in present on your plot, it will also be present on your neighbours’
bushes and will re-infect your new bushes. Having spent several years trying to
eradicate this pest from my bushes I now largely ignore it.
Gooseberry
Saw fly – These will attack redcurrant and whitecurrant
bushes from mid springtime onwards. The small caterpillars will strip the
leaves. If there are only a few, you can remove them by hand – check the
underside of the leaves carefully as well as the tops. If you have lots of
bushes, the foliage is dense or you have a serious infestation it might be
necessary to spray with insecticide before the numbers build up too much. There
are several organic pesticides on the market – try Py Solution.