Ornamental trees in landscape india.pptx

Ornamental trees for landscaping in India

1. University of agricultural sciences,gkvk , Bangalore -560065 Topic - trees Presenter Thrupthi A P Amb0249

2. Trees Trees- largest plant components of garden and landscapes.
They differ in stature, branching, habit, girth of trunk, and branches, canopy structure outline and crown shape, color of foliage, texture, glaze, shape and size. Trees are grown for shades, flowers etc.
As avenue they are planted along roadside avenues and central avenues ex. Ficus religiosa , D elonix regia , Coral wood tree, rain tree, bird cherry, tree techoma , bauhinia, asokam , Y lang ylang,parijatham , golden champa , elengi , P olyalthia longifolia , bauhinia

3. Trees are perrenial plant with a clear cut elongated stem or trunk supporting branches and leaves
trees are very fascinating because of their graceful appearance and the abundance of bloom.
They are grown for their economic importance or aesthetic value or both.
The cultivation of trees for their aesthetic or recreational value is known as arboriculture .
Trees should be planted carefully and thoughtfully for the benefit of height, shade, colour and vertical emphasis.
They also plays an important role in controlling air and noise pollution in cities.
Trees form the main framework of the garden.
Some trees produce attractive and beautiful flowers including fragrant flowers some trees have attractive foliage
some trees are known for their peculiar shape or form which is used as specimen trees. They give a mass effect and beautiful look to the localities.
The place where trees are grown either for landscaping or for scientific study is known as arboretum.

4. FEW EXAMPLES OF TREES ARE AS FOLLOWS:- Cassia fistula (the indian laburnum)
Lagerstroemia speciosa (pride of india ) E rythrina variegata ( indian coral tree) S araca asoca ( sita ashok ) C ochlospermum religiosum (yellow silk cotton tree )

5. Mass effect of trees

6. The reasons for planting trees are: To frame buildings and create vistas To add the appearance of the home To shade the house, terrace and garden seats and give a play of light and shadow on the lawn To add interest to the skyline To soften the harshness of roof lines and angles To hide undesirable objects To establish boundaries To provide protection from wind Smaller trees would be used to serve as a transition to larger trees to shrub biomasses. To line avenues and streets and encourage bird life.

7. Importance 1. ENVIRONMENTAL VALUE Prevention of soil erosion
plants with shallow fibrous root systems are effective to prevent soil erosion.
•Turf grasses are also effective in preventing soil erosion.
•The deep roots of trees help hold the soil tight.
•Trees also absorb some of the nutrients in the soil that would otherwise be washed away.

8. 2.FUNCTIONALAND ARCHITECTURAL VALUE :- Can cater to the need for privacy , Protection from glare or direct sunlight into windows, or shade. Trees as hedge - Acacia farnesiana , E rythrina , G ravillea robusta,Inga dulcis , P olyalthia longifolia , Pongamia glabra,Tthevetia nerifolia

9. Classification From the floricultural point of view, trees are classified into two groups, namely, foliage trees and flowering trees Foliage trees : the trees planted for their showy ornamental foliage are known as foliage trees. Adansonia d igitata , Ailanthus excelsa , A lbizzia lebbek , A lstonia scholaris,Aanthocephalus cadamba , Araucaria cookii , Azadirachta indica , D albergia sisoo,Eeucalyptus , Ficus bengalensis , F icus elastica , F. r eligiosa , J uniperus Sp., Melia azedarach , P inus sp., Pongamia glabra , P utranjiva roxburghii , S alix babylonica , T erminalia a rjuna , T huja orientalis , etc. Are the examples of foliage trees. Flowering trees : the trees planted for their showy ornamental flowers are known as flowering trees. Amherstia nobilis , Bauhinia sp., Bignonia megapotamica , B utea monosperma , Callistemon lanceolatus , Cassia fistula, Cassia grandis , Cassia nodosa , C horisia speciosa , E rythrina indica , Jacaranda m imosaefolia , Lagerstroemia indica , P lumeria alba, P eltophorum ferrugineum , Rhododendron sp., Saraca i ndica , T abebuia rosea , etc. Are the examples of flowering trees.

10. Deciduous trees Deciduous refer to trees, which seasonally shed their unnecessary parts especially the leaves from their structure.
Deciduous trees are adapted to tolerate the cold and dry weather conditions by shedding their leaves seasonally
majority of the trees shed their foliage at the end of their typical growing season.

11. Evergreen trees Evergreen tree’s foliage persists throughout the year.
•No seasonal leaf shedding, they shed their old leaves throughout the year
•favored in warm temperate climatic conditions

12. Columnar trees Columnar trees are tall and very thin, with upright branches. Their vertical shape adds height and also provides great screening without taking up much room in the landscape. Eg . Columnar apple – malus spp. They are good for planting in narrow side yards. They are good on either sides of an entrance. E.G.: Polyalthia pendula [false ashoka ]
columnar peach – prunus persica ‘crimson rocket’ ,columnar apple – malus spp

13. Pyramid or conical shaped trees We often think of christmas trees as the classic pyramidal tree, but the shape applies to deciduous trees as well. Pyramidal trees are wider at the bottom, with a main center trunk and horizontal branches. The branches may start at ground level or higher up the trunk. Conical trees are similar but are usually more slender and bullet-shaped. These trees are very dramatic and need space to reach their full width

14. Vase shaped trees Vase shaped trees are just what they sound like: a central trunk that branches into an upright arching shape that’s widest at the top. Vase shaped trees are graceful and perfect for lining walkways. Because they offer both shade and head room .

15. Round or oval shaped trees These trees are upright, with a central strong trunk that branches into a dense round or oval-shaped crown. They make strong shade and may have such dense foliage that the branches are concealed.Have almost clipped appearance & add formal touch to the landscape. Eg . Thuja occientalis [northern white-cedar or eastern arborvitae ]

16. Spreading/ open shaped trees These trees have an open, irregular shape that may be wider than it is tall. Some are towering skyline trees, and others are smaller, bushy specimen trees. Eg . Cherry, mango, sapota

17. Weeping type A good choice for specimens are trees with a weeping shape, where the branches droop down and sweep the ground. Eg . Weeping cherry – Prunus subhirtella ‘ pendula ’

18. Gulmohar ➤Common name: gulmohar ➤ scientific name: D elonix regia ➤ nature: deciduous
climate: tropical or near-tropical climate
height: 5-12 m
➤ texture: soft and light
➤ shape and color: green and flaccid when young and turn dark-brown and woody
➤ foliage: dense, fern-like leaves
soil type: open, free-draining sandy or loamy soil enriched with organic matter
➤ uses: ornamental

19. BARNA ➤Common name: barna ➤ scientific name: C rateva religiosa ➤nature: deciduous
➤climate:
➤height: 30-40′
texture:
➤shape and color: green
➤ foliage:
➤ soil type:
➤uses: dyeing, medicines

20. Oleander ➤Common name: oleander
➤ scientific name: N erium oleander nature: evergreen shrub
➤climate: subtropical and tropical areas
height: 2-6 m
➤texture: thick and leathery
➤shape and color: grayish bark. Dark-green
foliage: grow in clusters
➤soil type: tolerates a variety of soil
uses: ornamental gardening

21. Bottle brush Common name: bottle brush Scientific name: callistemon nature: evergreen, shrubby tree
climate: temperate regions
height:10 to 15 feet
texture: fury
shape and color: red flower spikes
foliage: crown is rounded
soil type: well-drained, sandy soil. Also grow in clay or loam
uses: ornamental landscaping

22. Golden rain tree Common name: golden rain tree
scientific name: Cassia fistula nature: deciduous Climate: tropical and subtropical areas
height: 10-20 m
texture:
shape and color:
foliage:
soil type:
uses: ornamental plant and is also used in herbal medicine

23. Jarul Common name: jarul scientific name : Lagerstroemia speciosa nature: deciduous
climate: tropical and subtropical areas
height: 20 metres texture: smooth, flaky bark
shape and color: oval to elliptic
foliage:
soil type: range of soils
➤uses: chemical compounds

24. Chir pine CHIR PINE
scientific name- pinus roxburgh family- pinaceae uses- chir pine is widely planted for timber in its native area, being one of most important trees in forestry in northem india and nepal . For local building purposes, the wood of this tree is the least preferred, as it is the weakest and most prone to decay when compared with other conifers