Course Content
Ornamental horticulture in Nepal
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Introduction
Significance and Importance of Ornamental Horticulture
Prospects of Ornamental horticulture in Nepal
Constraints of Ornamental horticulture in Nepal
Terminology Related to Lawn, Garden and Landscape Design
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Terminologies
Rose (Rosa spp., Rosaceae)
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Introduction
Modern Roses
Propagation
Climatic requirements
Methods of rose planting
Time of rose planting
Pruning in rose
Insect Pest and Disease
Orchids (Orchidaceae)
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Introduction
Classification of Orchids
Climatic and Environmental Requirements
Multiplication of Orchids
Structure for Growing Orchids
Potting Media
Care of Seedlings
Gladiolus (Gladiolus spp L., Iridaceae)
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Introduction
Soil and Site
Propagation and Planting Material
Land Preparation and planting of corms
Manuring and Fertilization
Corm and cormel harvesting and handling
Tuberose (Polyanthes/Polianthes tuberosa L., Agavaceae)
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Introduction
Cultivation Practices
Chrysanthemum (Chrysanthemum spp., Asteraceae)
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Introduction
Propagation
Growing environment
Growing of Chrysanthemum in Pots
Carnation (Dianthus caryophyllus)
0/4
Introduction
Propagation
Cultivation technology
Harvesting
Lawns and its management
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Introduction
Selection of grass for lawn
Planting methods
Bonsai
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Introduction
Plants specimens suitable for bonsai
Training and pinching
Management
Watering and manuring
Landscape gardening/design
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Factors Affecting the Landscape Design
Styles of Gardening
Indoor gardening
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Introduction
Window box gardening
Arrangement of indoor plants depending upon light and temperature requirement
Maintenance/Management of Indoor Plant
Establishment of nursery enterprise
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Introduction
Basic consideration for the nursery enterprise establishment
Basic Components of Nursery
Learn Ornamental Horticulture with Rahul
About Lesson

Modern Roses

  1. Hybrid Tea (HT) Rose: Major characteristics
  • Blooms longer period than Hybrid perpetual.
  • Blooms in long canes as solitary flower.
  • Elongated flower buds and slow opening of flowers.
  • They have good keeping quality.

 

  1. chinensis x R. gigantea à Tea Rose ( China rose)
  2. chinensis x R gallica or R. centifolia à Hybrid perpetual)

Tea Rose x Hybrid perpetual à Hybrid Tea (HT) Rose

Note: The first Hybrid Tea Rose, La france, was developed by Guillot in France in 1867 by crossing above roses.

 

  1. Floribundas:
  • Produce flowers in clusters (Polyanthus) and look like a bouquet.
  • Flowers are smaller than HT Rose.
  • Comparatively shorter vase life than HT rose.
  1. multiflora x R. chinensis à Hybrid Tea Rose

Hybrid Tea Rose x Dwarf Polyanthas à Floribundas

Note:  Floribundas were developed by crossing HT rose and Dwarf Polyanthas and crossing was done

by Danish breeder Poulsen in 1912. First variety was ‘Rodhate’

  1. Miniature Roses (Baby Rose): Major characteristics
  • Used as edging, pot culture and window boxes.
  • Small leaves and flowers.
  • Hardy and multiplied by cutting.
  • Introduced from China.

Baby Gold Star – Yellow color

Cinderella – White color

Fairy – Pink color

Little Flert – Red color

  1. Climber and Rambler Rose: Climber and Rambler roses require support.
  • Climber rose: CLG Virgu (white), Golden Shower (Yellow)
  • Rambler rose: Only one flush in a year but lasts longer.

American Pillar – Red with yellow canes.

Albertine – Pink.

  1. Shrub Roses (Continuous flowering):
  • Varieties are Butterfly Wings (white), Carefree Beauty (Pink), Formation, Cocktail (Red), Lucea (Yellow) etc.

 

Importance and uses

  • Most favored flower for garden decoration and landscaping
  • Rose flowers can fulfill the requirement of shrubs, climbers, hedges and bedding flowers.
  • Commonly used as cut flowers and loose flowers. Other commercial aspects of the rose cultivation are the extraction of the essential oil, rose water etc. Scented roses like Rosa alba, R. barboniana, R. antifolia, R. moschata are useful for this purpose.
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