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Fast Growing Trees
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Hybrid Poplar

Fastest

Deciduous
Hybrid Poplar
Weeping Willow
Silver Maple
Theves / Lombardy Poplar

Faster

Deciduous
Tulip Poplar

Evergreen
Douglas Fir
Canadian Hemlock
Dawn Redwood

Fast

Deciduous
Black Walnut

Evergreen
Colorado Blue Spruce
Scotch or Scots Pine

Fast Growing Hedging Plants
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Deciduous
Hybrid Poplar
Siberian Elm

Evergreen
Canadian Hemlock
- tall one of the fastest

Arborvitae
- not so quick or so tall, more elegant

Douglas Fir
- good for wind break or background


Pruning

Any Questions?

Archive: Plants | HedgesLandscaping/Surfaces | Lawns and lawncare | Miscellaneous | Pests and diseases | PruningTrees

Pruning

Q. I have a 10-year old Robinia (pseudoacacia) which was pruned hard by professionals earlier this year how do I keep it under control? Q. What is the best time of the year to prune trees? I have Malus and Prunus.....
Q. I have a two-year old grapevine in my greenhouse.  

Q. I have a 10-year old Robinia (pseudoacacia) which was pruned hard by professionals earlier this year as it had grown more than we wanted and was overhanging a neighbors garden and touching their upstairs window. We enjoy its lovely yellow leaves and don't want it too small (or too large).

Now that more shoots have grown after the pruning, we would like to keep it to a manageable size and wish to know which is the correct month to lop off the tops of these shoots and shape the tree, please?

I believe that we may have to prune every year to keep it from growing to full height of about 50 feet. Am I right?

A. Your Robinia will probably react to the pruning with quite vigorous vertical growth from around the cuts. The trick is to stop this new growth from developing, so rub out the buds or cut the shoots if that bit older as soon as you can. Mid to late summer is best for pruning Robinias, but new growths can be removed as soon as you see them.

You need to stop the tree from developing any new substantial leaders which it may do, these will compete with the original leader and may result in a misshapen and structurally weak tree. Narrow crotch angles are weak in these trees.

Also, it may respond to pruning by developing suckers - shoots that grow upwards from the roots a little distance from the main trunk. Again these should be removed as soon as possible or they will compete.

Robinias don't really respond well to pruning I'm afraid, their natural vigour results in them trying to keep growing upwards and end up being an odd shape. I think if I were you, and you have the room, plant another some distance away from the house and by the time the new one has established itself, the original may have reached the point where sadly the felling axe may be needed.

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Q. I have a two-year old grapevine in my greenhouse. I know that I should take off any grapes whilst still young this year, but how do I prune it? When I bought it, someone talked about cutting off leaves after a certain joint, but that person is no longer available for advice. Grateful for any information.

A. You need to tie-in the leading shoot so that your vine develops a good strong leader, allow it to grow unchecked. Any laterals that grow from this should be pinched back to five or six leaves and their side-shoots to one leaf.

In the winter cut the leader back by a half to two thirds of total length leaving only brown ripened wood. Laterals should be cut back to a single bud if it looks strong, to two buds if the lateral bud does not look so strong.

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Q. What is the best time of the year to prune trees? I have Malus and Prunus - I know that one of the Prunus is called Oku-miyako but not sure of the others. Many thanks.

A. There is no one time of the year to prune trees in general, it depends on the type of tree. Some respond better to dormant season pruning, others to pruning in the active growing seasons.

Ornamental cherries are best pruned in early to mid summer, but they don't take too kindly to it. In general, don't prune unless you have to, to remove dead or dying wood or where branches are rubbing each other or on something else. Pruning is best carried out early in a Prunus' life. They are difficult to prune successfully without it being obvious where the cuts have been made so detracting from the natural shape of the tree.

Malus are best pruned from autumn to early spring before active growth begins, so if are going to prune a Malus, do so as soon as possible. They are similar to the Prunus above in that they don't really like it, though are perhaps not quite so fussy as cherries. They don't respond well to hard pruning which often leads to further die-back from the pruned point.

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Pruning Tips

Pruning is a vital part of plant and tree care. This task can be confusing so we developed the following guide to help you prune properly.

Three basic tools suffice for most pruning jobs: shears, loppers, and a pruning saw. Keep them sharp for clean cuts; disinfect after pruning diseased material.

1. When Do Roses Need To Be Pruned?

Prune in winter or early spring when plants are still dormant. Prune plants to maintain symmetrical bushes and to encourage strong new growth. Cut back all previous years growth as much as one-third its length. Remove branches that cross through center and remove plants understock. Also prune weak and dead stems as needed. This will also encourage strong new growth.

2. When Do Crepe Myrtles Need To Be Pruned?

The best time to prune crepe myrtles is in February. Prune out twiggy stems and any dead wood. Thin out crossing or crowding branches in the plants center. If tree form, prune lower branches. Prune top to maintain symmetry. Each year after flowering, cut 12 to 18 inches off the tips of branches that have bloomed.

3. When Do Hollies Need To Be Pruned?

Prune in winter or early spring mostly to shape plants. Cut back wayward branches and prune out weak unproductive dead stems as needed.


4. When Do Butterfly Bushes Need To Be Pruned?

Butterfly bushes bloom in summer on new spring growth. They can be pruned in late winter or early spring. By pruning old blooms you will encourage new flowers. Also prune out old dead and unproductive branches.

5. When Do Hydrangeas Need To Be Pruned?

Hydrangeas fall into two groups. Some you prune in early spring and others after the flowers fade.

  1. Early Spring Pruning
    Hydrangeas bloom on new growth. These plants are Climbing Hydrangea, Annabelle, Grandiflora, and PeeGees.
  2. After-Bloom Pruning
    Hydrangeas bloom on last years stems. These include Bigleaf Hydrangeas, Oakleaf Hydrangeas, Lacecaps, SummerBeauty, and Nikko Blue. Pruning should be done when the flower has faded. Cut back the flowering stems to the strongest pair of new shoots. As plants mature, begin to thin out the oldest woody stems. Remove crowded crossing, broken, or dead branches.

6. When Do Clematis Need To Be Pruned?

Clematis can be put in three categories: Spring-flowering, summer-flowering , and twice-flowering.

  1. Spring-blooming
    Clematis produce flowers on stems that grew during the previous year. Prune when flowers are done blooming. Cut back the flowers that are now dead. Prune out any old dead stems as well.
  2. Summer-blooming
    Plants bloom on new growth produced in the spring. Cut back stems before new growth begins. Late autumn or early spring is a good time to prune. Cut back about 12 inches of old growth. Each year the vine will grow larger and stronger.
  3. Twice-blooming
    Plants first bloom in spring on stems produced the previous year. Late summer or fall will be the next bloom time. In late fall or very early spring, prune lightly to thin the stems. After the spring bloom, prune more heavily for more healthy stems to develop for the next bloom. After a second bloom, prune old flowers away.

7. When Do Fruit Trees Need To Be Pruned?

The most common fruit trees are apple, peach, pear and cherry.

  1. Apple Trees
    Apple trees should be pruned in late winter or early spring before new growth starts. Always remove all suckers (summer is a great time). Also remove dead and other unproductive branches as needed.
  2. Peach Trees
    Peach trees are fast growing and need to be pruned in winter. Without pruning the peaches will grow farther away from the tree's center. This will put great strain on the branches, causing them to break. In winter, thin out upward-growing branches that cross in tree's center.
  3. Pear Trees
    Prune back in early spring. Always prune dead and unproductive branches as needed.
  4. Cherry Trees
    Prune in winter. Prune out branches that cross in center and dead unproductive branches as needed.

8. When Do Azaleas and Rhododendrons Need To Be Pruned?

They can be pruned in winter or early spring. However pruning at this time will prevent plants from producing many blooms. The best time to prune azaleas and rhododendrons is just after their blooming period in spring. If you prune at this time , no additional pruning will be necessary.

9 When Do Junipers Need To Be Pruned?

Junipers need very minimal pruning. They should be pruned to correct their shape, to accent their form, or to limit their size. This should be done during the juniper's growing stages in mid-summer.

10. When Do Flowering Trees Need To Be Pruned?

Flowering trees should be pruned after they have finished blooming. Prune as little as possible. Dead branches, branches that cross in the center, and branches that are unproductive should be pruned out.

Three basic tools suffice for most pruning jobs: shears, loppers, and a pruning saw. Keep them sharp for clean cuts; disinfect after pruning diseased material.

Hedges and hedging plants

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