WINTER PROPAGATION
We all love to grow a few extra plants for free, and late autumn is a good time to propagate many plants. Winter may be just around the corner, but the ground still has a bit of warmth to help new plants get established. Hardwood cuttings of numerous fruit bushes and ornamental shrubs can be taken now, grape vines under cold greenhouses will be fine and on the fruit patch both raspberries and saskatoons from suckers and strawberries from runners will all help to increase your stock.
John checking over his Bramley apples |
Blackcurrant cutting |
Red, white and
blackcurrants as well as gooseberries, and most deciduous shrubs such as
forsythia, philadelphus, cornus and even roses can all be grown from hardwood
cuttings. The best time to take these is about two weeks before dormancy when
the leaves fall off till about a month later, before winter sets in and the
soil turns cold and wet. Take cuttings about six to nine inches long cutting
above a bud at the top end and below a leaf joint at the lower end. Prepare the
soil in a sheltered spot outdoors or in a cold frame. Add grit and fork into the
top few inches to help drainage, then dibble the cuttings in burying two thirds
of the stem at spacings of four to six inches apart. This gives the rooted
young plant room to grow as it will remain there for a year. If you are growing
gooseberries on a leg then remove all the lower buds except the top three or
four.
Lining out gooseberry cuttings |
Difficult shrubs
like Cornus are better when the prepared cuttings are bundled together and
heeled into the compost heap where they will get bottom heat over winter with
cool tops. This will help the cutting base to callus over ready for lining out
in early spring before roots emerge.
Taking grape vine cuttings |
Some trees such as
willow and poplar are very easy from cuttings which can be quite big (four to
five feet) to get them off to a quick start.
Blackberries
(bramble) can either be propagated from layering the tips of the growing shoot
in summer where they will root and produce a plant by autumn, or in winter you
can take a root cutting. Dig up a few roots at least pencil thick and cut into
lengths about six inches long with a straight cut at the top end and a sloping
cut at the root end so you don’t mix up which way to insert them. They can be
lined out in a cold frame or in pots in a cold greenhouse over winter.
Raspberries grow
very easily from suckers growing away from the centre of the bush where they
would be just a nuisance. These can be planted into permanent position any time
during the winter spacing them about eighteen inches apart with rows six feet
apart.
Saskatoons also
produce plenty of suckers, but new shoots appearing one year may not have roots
on them so always give the suckers two years for good root growth.
Planting fresh strawberry runners |
Strawberries usually
produce plenty of runners in the first few years after planting, and once you
have left enough in to thicken up the rows, surplus can be dug up to plant new
beds. Keep new plantings spaced about a foot apart with rows three feet apart.
Row spacing may look a bit wide at first, but the rows soon thicken up and you
need some clear space for your feet at picking. Replace strawberry beds after
three years cropping, as any later and the older plants only produce small
fruits and not much runners.
Grapes both indoor
and outdoors can be propagated during the dormant season once the leaves have fallen
off and the growth has ripened. Take cuttings from November to the end of the
year, as any later risks bleeding from the cut ends on the vine. Take cuttings
about four inches long from strong young shoots with at least one good bud at
the tip. Insert these into pots with gritty compost and over winter in a cold
greenhouse. They will start growing in spring.
Wee jobs to do this week
Wee jobs to do this week
Dry Keep checking on
apples in store as any damaged ones can quickly go brown and the rot can spread
to other healthy apples. Slightly damaged apples can still be used before they
go bad for crumbles, stews, pies, tart and juice. Some dessert apples such as
Falstaff, Fiesta and Red Devil can last up till next March if kept in an airy
cool dark place that is frost free. Cooking apple Bramley may last even longer
as it is a great keeper.
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