Spring at Last

SPRING AT LAST

The end of February and early March brought a very welcome period of sunshine and dry weather not seen since last October. The urge to get outdoors into the garden was very strong especially as there is a mountainous backlog of tasks seeking attention. The long lasting blanket of snow which fell in November and December but did eventually melt a couple of months later was followed by cold wet real dreich weather that put any thoughts of gardening on the back burner.

That was yesterday and now today the sun is shining, the ground is drying up and gardening can begin at full speed.

Complete the winter pruning

The warmth of the sun has been sufficient to start the sap rising on my fruit trees as buds begin to swell, so pruning had to be completed before dormancy breaks. However if you have any tree which is showing too much vigour at the expense of fruiting delay pruning till just after bud burst as the shock will help it to reverse that trend.

I do not spur prune my fruit trees, but carry out a minimum of replacement pruning to remove some old wood and encourage a balance of young wood and mature fruiting wood which will fruit for several years before it gets replaced.

Apples, pears, my peach tree and my newly planted cherry tree Cherokee all got pruned. I will grow the cherry as a fan trained dwarf tree against a south facing fence, so the strong main shoot got cut back to two feet and side shoots shortened by a third. Two shoots growing at the front and back got spurred as they are unwanted in a fan trained shape.

Although I love my very early Arbroath Pippin apples, they do not keep, and as you can only eat so many, I will cut some branches back to stumps and graft some new varieties onto them in late March to early April.

I will also replace most of my Comice pear with other stronger disease resistant varieties which don’t get wiped out with scab in our wet summers. Grafting is very easy and rewarding as the new grafts grow on the older tree very readily as long as a few basic principles are followed. One main principle is that the new shoot, called the scion, should be dormant when grafting, but the tree has to be growing with the sap flowing to lubricate the inside of the bark so it separates easy from the trunk without tearing. I cut my scions in February to early March then heal them in a north facing cool border to hold them back. It always seems to work just fine.

I will cover grafting next week, so if you wish to make a family tree or try out another variety get your scions ready now.

Good apples in our area are Fiesta, Red Falstaff, Scrumptious, Discovery and Red Devil.

Summer and autumn raspberries, black, red and white currants, brambles and gooseberries should all be pruned before growth starts.

I will be doing my first pruning of my six year old Saskatoon bushes to open up the centres allowing more light in and encourage some younger shoots to grow from the base.

My ornamental exotic Cordyline australis did not survive the winter to it got chopped down to ground level. I will leave it for a year or two to see if it regrows from the base.

The fruit garden

Last week I removed a lot of runners from my early strawberry variety Mae to make two new rows. As there was plenty runners I complete each row as a double row at six inches apart and the runners spaced at six inches. This will increase the cropping significantly.

To get even earlier crops I put a polythene tunnel over an existing row of Mae. This will fruit two weeks ahead of the others. It is easy to make your own tunnels very cheaply and they can last for years. My tunnels are made from 4 foot wide polythene (150 gauge) held over wire hoops (high tensile 8 gauge galvanised wire) and secured with polypropylene binder twine.  The wire hoops are about 5 feet long. Allow a 9 inch leg to insert into the ground then bend the wire round a broom handle to create a loop on the outside for tying the twine to. I dig the polythene into the ground at each end of the row to secure it, the tie it down with the binder twine at each hoop spaced about 3 feet apart along the row.

You can buy the materials online at www.lbsgardenwarehouse.co.uk

This is the last chance to spray your peach tree with a copper fungicide, or Dithane to control peach leaf curl which can devastate the tree if untreated.

Early vegetables

Tomato Alicante and my favourite cherry type Sweet Million germinated successfully so have now been pricked out into cellular trays. They are to grow for a few weeks on the south facing living room window sill until warmer weather arrives and I can transfer them to my cold greenhouse. They will then get potted up again before planting into growbags.

Broad beans have now been sown as one seed per cell in a cellular seed tray. These are kept at home in the warmth under a table to germinate, and then they will be transferred to the cold greenhouse. They are pretty tough hardy plants so the cooler regime will not harm them. They will be one of the first to move out of the greenhouse together with my geraniums to make way for other plants. Geraniums are also quite hardy and can take a degree of frost, as long as they have been hardened off properly and the frost is not severe or prolonged.

Back on the allotment low polythene tunnels are perfect for an early batch of lettuce, radish and spring onions, but put it in place on prepared soil for at least one week to warm up the soil. There is nothing to beat those early first salads, picked fresh and onto the plate within hours.

The first flowers

Those first few days of bright sunshine was perfect to open up the spring flowering crocus to add to the aconites, snowdrops and my dazzling white hellebore.

My winter border of coloured stemmed shrubs, (Cornus Westonbirt, Kerria japonica, Salix britzensis and the Japanese maple Acer Sangokaku) has been flooded with drifts of crocus and snowdrops. It is an amazing site at present at its best for the season. The show of coloured winter stems will remain effective for another couple of weeks before they get pruned down to the base.

Under my carpet of crocus in this border I have planted tulips for flowering in May and scented lilies which flower in mid summer.

I am hoping that we do not suffer any late frosts as my first flowering shrub, Rhododendron praecox is beginning to open up. This lilac early dwarf Rhododendron is spectacular for at least two weeks provided it does not get frosted.

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Focus on Cuttings

  WINTER PROPAGATION

 This winter season may be severe and prolonged and all outdoor plants are well and truly dormant, but gardening is very seasonal and whilst it may not be possible to do much soil cultivations, there are many tasks that can be started now.

A lot of trees, shrubs, roses, fruit bushes and ground cover plants get pruned during the dormant season and it is these prunings that can make perfect cuttings when you wish to increase your stock of plants.

This is also the time to start sowing onions, and sweet peas if they were not autumn sown. If you have a good selection of geraniums and Impatiens which you wish to retain and have taken cuttings in autumn these will now be rooted and in need of potting up. I have kept the same geraniums going for many years as I have got really good colours for a brilliant summer display.

It is always very satisfying to produce your own healthy strong plants from seed and cuttings, rather than buy the more expensive mature plants. When training to be a gardener in the Parks Department in the early sixties the competitive spirit was always very strong and there was always someone who had bigger plants, more of them or had more flowers than the next. Propagation of all plants was a mark of your skills. Rose budding at the Camperdown  nursery sorted out the men from the boys as a high percentage take, speed of budding and clean grafting were closely monitored.

Although there is not a lot of fruit and vegetables grown in the parks, you were expected to acquire gardening skills in all topics, so training covered vegetables, fruit and greenhouse work as well as planting trees, shrubs, roses and bedding plants, grass cutting and landscaping.

It was at Duntrune Terrace demonstration gardens that I got my propagation skills honed under the watchful eye of a very skilled head gardener. My first home grown fruit bushes started off from cuttings grown from the gardens own stock of the best black currant varieties.

It was all part of the training exercise of course.

Hardwood Cuttings Fruit

Black currants, red and white currants and gooseberries are all propagated similarly as mature one year old shoots about pencil thickness. Cut them to about six to eight inches long with the lower cut under a node and the top cut above a bud. Leave all the buds on unless you wish to grow them as cordons or on a bare stem as with gooseberries. For these remove all the buds except the top two or three. Gooseberries are best on a leg to help picking as the weight of crop often pulls the branches down to the ground where the fruit gets splashed with soil.

Insert the cuttings about four inches apart in open ground in rows, leaving about one third of the cutting above ground. Leave them to grow on for a year before lifting them in the dormant season to go to their permanent spot.

If you are planting a new row of blackcurrants, you will only need to buy half the required number, as it is necessary to prune a new bush down to a few buds to get it established. Each new bush will normally have about four stems which after pruning will give you four good cuttings. Plant all four cuttings together in a square about four inches apart in the place of another bush.

After three years you will not see any difference in size of the bushes.

Hardwood Cuttings Ornamental Shrubs

There is a wide range of ornamental trees, shrubs and roses that can be propagated from cuttings very similar to black currants.

Poplar and willow trees must be the easiest and you should achieve 100% rooting almost every time. Take one year old shoots and cut to about ten inches long and insert into rows four inches apart leaving a third above ground.

Cornus, philadelphus, forsythia, buddleia and most roses can be propagated as above, but other ornamentals may need a wee bit more care.

Often the best time to take these hardwood cuttings is either two weeks before or after leaf fall or in March just before dormancy breaks.

Cuttings are taken about six to eight inches long, and some, e.g. pyracantha are better with a heel. Prepare a bed in a cold frame or other sunny sheltered spot mixing a lot of grit and some old compost into the soil to open it up, improve drainage but still retain moisture. Cuttings are lined out about four inches apart in rows six inches apart.

Commercially cuttings are often bundled up in batches of about twenty then plunged into an open frame full of sand or grit with soil warming cables underneath in late autumn. This gives cool tops so nothing breaks into growth, but the bottom heat encourages the base of the cutting to form a callus. The bundles are checked regularly, and then as soon as roots are seen to break out of the callus, they are lined out in another frame in ordinary propagation medium.

Allow all the rooted cuttings to grow on for a year before lifting, keeping them watered, and in summer protect them from strong sunshine.

For those with less sophistication it is possible to use deep boxes filled with a mixture of sand and old potting compost to take the cuttings in smaller bundles and sink it onto the top of a fresh compost heap where there is still some heat. Leave them there till mid March then line them out, when they will have callused over and some may show root initials.

The yellow flowered Jasmine is very easy to grow as long stems often fall onto the ground where they will root very readily. Hydrangea petiolaris also roots itself into soil and moist walls at every opportunity.

Stratification

Many shrubs, e.g. cotoneaster, pyracantha, rowans, and saskatoons grown for their ornamental or edible berries can be propagated from seeds extracted from these berries.

Once the berries are mature remove them and squeeze out the seeds. Wash any remaining pulp off the seeds as it contains germination inhibiting hormones, then either store them for a few weeks in a fridge, or sow them in trays and keep them outdoors. Keep them watered and protected from birds and mice. Over winter them outdoors, then in spring you should get a good germination of young plants. Grow them on for another year in soil or pot them up individually.

Greenhouse plants

Grape vines are very easy to root. I take pruned shoots about twelve inches long in January and over winter them in bundles in my compost heap. In March I cut all the plump healthy stems into one bud cuttings. Cut each one above a bud and leave two or three inches of stem below that bud. These can be inserted individually in pots, or spaced out in a cellular tray and kept in the greenhouse. By mid summer they will be rooted and ready to pot into a bigger pot. Once well rooted they can grow very strongly and as they are quite hardy grow them outdoors all summer and autumn.

Geraniums that were started off as cuttings last October are now rooted. They were inserted in wide shallow pots at five to a pot, but they soon filled the pot. I take out the tops to make them branch and let light into the middle otherwise at this time of year they would get very leggy.

They are now branching very nicely so potting them up into an individual pot and giving them more space will keep them short jointed.

I try to keep my greenhouse unheated as it is better for my overwintering grape vines, but it is too cold for geraniums. They can take a few degrees of frost, but not over a long period, so I keep mine on the windowsills in the house until March when I feel it will be ok to give them cold greenhouse conditions.

If a late frost threatens I do have a heater I can use for a short period.

Sweet peas can now be sown any time in January or February if they were not autumn sown. Last year they were autumn sown then overwintered in my cold greenhouse. That allowed me to plant them out early, but unfortunately this was followed by a cold wet spring and an even wetter summer so the display was miserable. This year I am not sowing too early. The seeds are soaked over night in a glass of water, then sown the following day at three seeds to a pot and germinated in my studio. Soon after they emerge they will be hardened off before going into the cold greenhouse. They should be ready for planting in early April on a good day.

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Preparing for Winter

PREPARING FOR WINTER

Autumn is a very important time in the gardening calendar as it is this time we assess the results of the seasons work so we can plan for the next year. It is also the time to get overwintering outdoor crops tidied up before winter sets in and prepare those requiring winter storage. Then there is the winter digging, fruit tree and bush pruning and before long the leaves will have started to fall.
In fact its quite weird and very unusual, but the seasons seem to be normal. Autumn leaves are falling in autumn instead of early winter, snow is falling at low levels in some places, summer bedding would appear to be finished and the rain has stopped. I cannot remember much wet weather during the tattie picking season, though it was often frosty in the mornings. Then as usual thousands of geese flying in formation overhead are making their way up the Tay estuary. Now, this is autumn.

Allotment work

The cold weather is just what we need to sweeten up the winter cabbage, leeks, kale, Brussel sprouts, swede turnips, Swiss chard and my four parsnips that grew from a whole packet of seeds. Next year I will definitely change the variety and supplier.

Last year I left my beetroot in the ground rather than lift for storage and even though we had a very cold winter they came to no harm, so I will try the same again this year, but earth them up a wee bit to give the roots some protection from frosts.

It is a good idea to try to complete winter digging, adding manure or compost, before the end of the year, but this usually depends on good weather so the soil is not too wet to walk on. Any land sown down to a green manure crop such as mustard must be dug over immediately the first flowers appear otherwise they may set seed and end up being a real nuisance.

Gladioli and chrysanthemums have now finished so they can be lifted and stored for next year. Gladioli are dried off and stored in a cool box in dry sand or dry soil in a frost free shed. Chrysanthemum stools are boxed up and kept moist in a cold but frost free greenhouse over winter.

My strawberry varieties Symphony and Florence have both had three fruiting years, so now is the time to replace them from runners. They have produced a lot of very strong healthy runners so I can afford to give the new strawberry bed on freshly prepared and composted ground special treatment. Rows are spaced three feet apart, but I can afford to make each row a double row six inches apart and space the plants up each row at six inch spacings. This way I will establish a thick row in the first year to give a far heavier crop than traditional planting distances.

Winter Storage

Pumpkins have been lifted, washed and are now stored as an ornamental feature in our utility room where it is not too warm. They will be used fresh for fantastic soups up till next April, then any remaining will have the flesh scooped out and frozen for use later. The seeds will be used for next years crop.

Onions have been dried off and stored in nets hung up in the garage.

Carrots are lifted and stored in between dry straw and covered over with soil to keep them frost free.

Potatoes are now all lifted, dried, sorted out and stored in boxes in a cool but frost free spot.

Apples have now all been harvested, even my Bramleys, sorted out and stored in cardboard trays in the garage. The Discovery variety is finished so now we are eating the Fiesta. Red Falstaff and Red Devil will be stored a bit longer to ripen up.

The freezers are packed with enough fruit and vegetables to keep a large family well fed for well over a year. French beans, broad beans, (it makes a brilliant winter soup) and the best of our sweet corn crop are all frozen and surplus kale leaves get frozen as this makes it easier to break them up for soups without losing any of their nutritional value.

When you add soft fruit to the freezer such as strawberries, rasps, red currants, black currants, gooseberries, saskatoons and brambles it makes sense to pack them in square shaped plastic containers to maximise space and minimise empty air space.

Rhubarb, surplus pears and plums which do not store well can also be frozen to be used throughout the rest of the year.

The latest health trend to use any surplus fruit is in a delicious smoothie. This retains the healthy properties of the fruit or vegetables and can be taken as a food or thick drink. They can also be used in place of cream for summer puddings. Our favourite smoothie at present is made with our Aronia berries. This new berry crop is also called the chokeberry as the fresh fruit is astringent if eaten raw, but easily loses this when cooked. As far as superfood status goes the aronia ranks near the top of the list having ten times as much anti-oxidants as a blueberry. As well as smoothie it makes a great jam and can be juiced for a drink with some sugar added.

Propagation

Geraniums are easily overwintered as rooted cutting taken early in October and put in small pots. Keep them cool and don't over water, but if you wish to build up stock then water and feed oftener and grow in a light warm greenhouse or windowsill. Take the tops out for cuttings as soon as big enough, then take another cutting from the second cutting once it has put on a bit of growth. Grow them fast and repeat the process. It is possible to get ten plants from one plant by late spring.

I will be sowing my Meconopsis, (Himalayan blue poppy) now that it has been in the fridge for three months. It will remain outdoors to complete its stratification period and hopefully germinate in spring.

My saskatoon seed and now Aronia also get stratified before they will germinate. Select good berries at harvest time and squeeze them out of the flesh as soon as possible as the flesh contains germination inhibiting hormones. Wash them and use a kitchen roll to remove the worst of the moisture then store them in moist kitchen roll in the fridge. Do not let them dry out. Sow the seed outdoors in a prepared seedbed or in containers and keep these outside to weather. Germination should occur in spring. However this year my saskatoon variety Smoky has started to germinate. This is October so I do not know if the young seedlings will survive the winter so Smoky will go into my cold greenhouse for a wee bit of protection.

Spring bedding

Now that autumn appears to be with us most of my summer display of bedding plants in beds, tubs and hanging baskets is over. My geraniums are still colourful, so I will leave them alone for another week, and my tuberous begonias still think it is summer. They are still brilliant so no harm will come to them at this stage, even if I have bags of tulips, hyacinths and crocus eager to get planted.

Tubs of begonias will be replaced with a mixture of polyanthus underplanted with scented hyacinths. Smaller pots and hanging baskets will be planted with winter pansies and some crocus, and my main flower beds will be planted with wallflower grown from seed on my allotment, and a mixture of Darwin Hybrid tulips once I finally decide the geraniums are past their best.

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