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9 degrees Celsius
Humidity : 92%
Rainfall : 0.4mm
Wind : Calm
I have a class with Lisa Burton and Curator Linda Hellyer in Botanic Garden under rose garden. Usually rose pruning is from July to August of the year. What is pruning? Pruning as trimming or by cutting away the superfluous branches.
What are some of the reasons for pruning?
- to help direct plant growth
- to help promote better production of flower and fruit
- to eliminate diseased or pest-infested growth
- to removal of dead, split or damaged branches or tree trunks
- to extend the life of plants
- to thin and remove unwanted branches in densely foliaged shrubs and trees
- to rejuvenate old plants
- to clip hedging plants
- to remove spent flowers and fruits
Roses growers undoubtedly want to maintain healthy, vigorous bushes which produce an excellent display of flowers. For the objective to become a reality many roses need regular pruning. Rose pruning is not difficult and is undertaken for the same reasons that apply to the pruning of the other plants : plant vigour, health and shape. If these aspects receive adequate consideration and action, good flowering will follow.
Rose pruning practice varies with each grower. For many years it was thought that roses should be heavily pruned. Roses with plenty of leaves tend to produce better blooms.
Important pruning hints for all roses :-
- Rose plants are prone to attack from various diseases and pests
- Prune after frosts have passed.
- Always cut into healthy wood and on an angle.
- Begin pruning by removing all dead, diseased or sun-scalded material
- Often two or more buds are produced at pruning cuts.
- Cutting flowers for indoor decoration is an excellent method of pruning.
- When pruning, always promote the natural growth habit of each variety
- When pruning standard roses, the general objective is to create a bowl effect with little centre growth,
- Watershoots above the graft should be retained with only light pruning as they will become the main branches later when old wood is removed
Ms. Linda and Lisa taught how to prune the roses. I pruned modern roses, climbers and she guided me how to pruned such as the position to stand especially facing the bud before cutting the stems, extract excess canes, and decision making on how to prune and organise the plant.
The most commonly grown rose categories are dealt with below, according to their specific needs. Hybrid tea roses, polyantha roses, miniature roses and climbing roses.
Hybrid Tea Roses - commonly grown and can be distinguished from other roses by their long-stemmed flowers which have long, pointed buds. They have the scent of tea. They are standard and also bushes. In general terms, removing about one-third to one-half of the growth. Remove all small, weak and inward-growing branches. If the plant is growing larger than desired, remove some old growth taking care to maintain the balance of growth. Shorten back all other growth to outward facing buds.
Polyantha Roses - available as bushes, standard or climbers. Polyanthas are bush roses. Both produce their blooms in terminal clusters. Generally removing one-quarterto one-third of the growth is adequate. Light thinning, remove small, weak, criss-crossed and diseased stems. Thinning of old wood may be required.
Miniature Roses - these dwarf roses are becoming more popular. Commonly propagated from cuttings and grown on their own roots rather than being grafted. Pruning treatment similar to that described for hybrid tea and polyanthas, There is no need to find buds. They are small and plenty anyway and main task is to remove dead and diseased wood. First or second year severe pruning and following can prune above the grafted, above prune ground level.
Climbing Roses - produce lateral shoots. the pruning procedure is shorten these growths back to 2 -3 buds. Young plants left unpruned for a couple of years, until they develop some strong stems which become the framework. During the first or second year, light summer pruning, such as shortening of the laterals. Remove any diseased, weak or dead growth within these years. Following year, lateral growth should be shortened after flowering and wood over four years old should be removed. Remove very old near the base of the plant to help stimulate new growth. Plants in the group require little pruning, except for removing older wood in order to promote the renewal of branches.
We ended the pruning training at 4.00pm.
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