SS 2 Second Term Agricultural Science Lesson Note – Meaning and Importance of Ornamental Plants

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 SUBJECTS: AGRICULTURAL SCIENCE

 CLASS:  SS 2

 TOPIC: MEANING AND IMPORTANCE OF ORNALMENTAL PLANTS.

 CONTENTS:

1. Meaning
2. Importance (a) Screening and delineation (b) Architectural beauty of building etc

Sub-topic: 1

Meaning of Ornamental Plants: These are plants (trees, shrubs, or herbs) which are used for different purposes by man.

Ornamental plants can also be seen as plants that are cultivated or grown to beautify or decorative purposes in gardens and landscape design projects such as houses, walk ways , parks and indoors. They are also planted and arranged or placed where they will thrive for a useful purpose.

The study of ornamental plants is called floriculture. The person who grows or sells flowers is called a florist

There are different types of ornamental plants which can be used for different purposes.

The following are common ornamental plants found in Nigeria.

 

GRASS
No	Common name	Scientific name
1	Bahama grass	Cynodon dactylon
2	Carpet grass	Axonopus compressus
3	Bush marigold	Aspilia africana
4	Crotalaria	Crotalaria juncea
SHRUBS
5.	Pride of Barbados	Caesalpinia spp
6	Milk bush	Tephtia peruvina
7	Rose flower	Hibiscus rosa sinensis
8.	Queen of the Night	Cestrum nocturum
TREES
9.	Flame of the forest	Delonix regia
10	Frangipani	Phimaria spp
11.	Whistling pine	Casuarina equisetifolia
12	Masquerade tree	Polualithia spp
13	Royal palm	Roysthonea spp

Importance of Ornamental Plants

Ornamental trees, shrubs and flowers have various uses, hence their importance for our well-being.

1. Landscaping:

• Flowers are used to beautify residential and office buildings as well as playground.
• The plants whose flowers are attractive, colorful and sweet smelling are used for this purpose

2. Provision of shade:

• Many ornamental shrubs and trees such as Odan- Ficus spp and Almond tree are used to provide shade around houses especially in villages

3. Wind Break:

• Closely spaced tall ornamental shrubs and trees are usually planted close to buildings to act as wind break.
• Wind break trees add to the beauty of the areas. An example of wind break trees is teak, Ashoka (Police Tree)

4. Screening and Delineation of areas:

• Ornamental plants can be used to screen a place such as house from the prying eyes of strangers.
• Used to delineate areas from one another by using it for demarcation

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