# Choosing Plants for the Landscape - PowerPoint PPT Presentation

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## Choosing Plants for the Landscape

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### Choosing Plants for the Landscape – PowerPoint PPT presentation

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Title: Choosing Plants for the Landscape

1
• Choosing Plants for the Landscape

2
Next Generation Science / Common Core Standards
• CCSS. Math. Content.HSN-Q.A.1 Use units as a way
to understand problems and to guide the solution
of multi-step problems choose and interpret
units consistently in formulas choose and
interpret the scale and the origin in graphs and
data displays.
• CCSS. Math. Content. HS N-Q.A.2 Define
appropriate quantities for the purpose of
descriptive modeling.
• CCSS. Math.Content.HSG-CO.A.1 Know precise
definitions of angle, circle, perpendicular line,
parallel line, and line segment, based on the
undefined notions of point, line, distance along
a line, and distance around a circular arc.
• CCSS .Math. Content. HS G-CO.D.12Make formal
geometric constructions with a variety of tools
and methods (compass and straightedge, string,
reflective devices, paper folding, dynamic
geometric software, etc.). Copying a segment
copying an angle bisecting a segment bisecting
an angle constructing perpendicular lines,
including the perpendicular bisector of a line
segment and constructing a line parallel to a
given line through a point not on the line.

3
Bell / Work Student Learning Objectives
• 1. Define the categories of landscape plants.
• 2. Describe why plant names are important.
• 3. Identify factors to consider when selecting
woody plant material for the landscape.
• 4. Explain how the environment affects plant
selection.

4
Terms
• Cultivar
• Deciduous
• Evergreen
• Flowers
• Genus
• Groundcovers
• Hardiness zone
• Ornamental
• Shrubs
• Soil pH
• Species
• Specimen plant
• Variety
• Woody

5
Write down the name of the plants that you
recognize
• Echinacea purpurea
• Purple Coneflower
• Liquidambar stryaciflua
• Sweetgum
• Snapdragon
• Antirrhinum nanum
• Acer rubrum
• Red Maple
• Arrowwood Viburnum
• Viburnum dentatum
• Foxglove
• Digitalis purpurea

Most of the names that you do not recognize are
the plants Latin names.
6
What are the common categories of landscape
plants?
7
I. Plants are divided into separate categories
based on their size, growth habit, and purpose in
the landscape.
8
A. Trees
• Trees are woody perennial plants that are usually
single-stemmed and over 12 feet in height.
• They may be deciduous or evergreen
• When designing a landscape trees are used to
provide shade, frame a house, or for ornamental
characteristics like flowers or fruit.

9
B. Shrubs
• Smaller perennial plants than trees, getting no
more than 20 feet in height and multi-stemmed.
• Shrubs may also be evergreen or deciduous
• Used to create hedges or borders, screen an area,
or as foundation plants.

10
C. Ground covers
• Plant materials under 1 foot tall that are used
in place of grass.
• They help to tie the elements of a landscape
together
• They can climb objects or creep along the ground.

11
D. Flowers
• Ornamental plants that add a burst of color to
the landscape.
• They can be found on trees, shrubs, or ground
covers, or they can be plants in a category of
their own like marigolds and tulips.
• Flowering plants can live for only one season or

12
Why are plant names important?
13
II. Plant naming
• Plant names are what people often associate with
the actual plant.
• Plant names can fall into two categoriescommon
names and botanical names (Latin names).
• The botanical names of plants come from Carl von
Linne (Linnaeus) and his binomial system of
naming plants.
• Each plant has a genus, specific epithet
(species), and often a variety, and a cultivar.

14
A. Genus
• A group of plants that are closely related to
each other
• They may contain one or more species.
• The genus is always written with a capital letter
and is either underlined or italicized.
• It is the same for every plant in a particular
group.
• For example, Quercus is the Latin name for all
oaks while Acer refers to all maples.

15
B. Species
• A group of plants that have similar
characteristics which make them distinct from
other groups in the genus.
• The species name is written in lower case,
underlined or italicized.

16
C. Variety
• Results from a difference within a species.
• This difference is passed sexually from one
generation to the next.
• A variety follows the species name and is
lowercase, underlined, or italicized.

17
D. Cultivar
• A group of plants within a species with a very
distinguishing characteristic.
• However, unlike a variety, the only way to keep
this characteristic within a plant is to
asexually propagate the plant from cuttings or
grafting.
• The cultivar is placed in single quotations and
capitalized.

18
Latin Names Acer rubrum var. columnar Genus
species variety Acer rubrum
Red Sunset Genus species cultivar

19
What factors should be considered when selecting
woody plant material for the landscape?
20
III. Become familiar with the plants
• Research potential plants
• Ornamental characteristics, the mature size and
form, its environmental requirements and its
hardiness zone.

21
Become Familiar with the plant
• Consider the purposes or function the plant will
serve.
• The landscaper would need a different plant to
create a screen in the yard versus the plant that
would be chosen to act as a specimen plant.
• A specimen plant is a plant that is particularly
attractive and adds accent to a planting bed.

22
Become Familiar with the plant
• Plants are then selected for the correct areas
based on their cold tolerance and other
environmental requirements.

23
A. Ornamental Characteristics
• Ornamental characteristics would include flowers,
fruits, foliage, bark, and form.
• The best plants for the landscape would have
four-season appeal.

24
The flower
• A plants ability to produce attractive flowers
is certainly an asset to the landscape.

25
The fruit
• The fruit on a tree could both be a reason for
selection like in the case with crab apples or
holly, or be a reason to avoid that plant, like
ginkgo, which has rotten smelling fruit, or hedge
apple with its fruit the size of softballs.

26
The foliage
• The foliage on the plant plays an important roll
in plant selection.
• Plants can be either evergreen or deciduous.
• The leaves can have different textures and
colors.

27
Branches and trunks
• The plants branches and trunk can add to the
landscape interest.

28
The shape
• The shape of the plant from an elegant weeping
form to a stark pyramidal can be used in the
landscape to create bold statements.

29
B. Size of the plant
• One of the easiest things to forget about when
selecting plants for the landscape is the mature
size of the plant.
• People often forget that plants will grow. One
must consider the mature size of a plant and use
caution when placing the plant close to the home
or windows.

30
C. Hardiness Zones
• The U.S. Department of Agriculture established
hardiness zones.
• A plant must be in the correct hardiness zone for
that particular area or it will not survive the
winter.
• The U.S. is divided into 11 zones.
• Plants in the landscape can be used from colder
regions but they can not be selected from warmer
regions.

31
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32
D. Select cultivars
• Cultivars have been selected because they have
proven themselves to have consistent outstanding
characteristics.
• Cultivars are often selected for their disease
resistance to common ailments.

33
IV. Environmental conditions
• Two common environmental conditions that affect
plants are soil pH and the moisture level in the
soil.

34
A. Soil pH
• The measure of the acidity or alkalinity in the
soil.
• It is measured on a scale of 114 with 7 being
neutral. Measurements of 16 are acidic with 814
alkaline.
• Most plants like to grow at a pH of 5.67.0.
• If the soil pH is too high or too low, it will
affect the availability of nutrients to the plant
.

35
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36
B. Soil Moisture
• Most plants do not like to have their roots
sitting in wet soil for any length of time.
• Many plants can not tolerate dry soils without
any moisture.

37
Review
• Plants add a beautiful surrounding to a home.
But using the proper plants means more than
selecting the one with a pretty flower. Being
able to identify the plants name is the first
step in determining the needs of a plant. Good
landscapers associate plants with growing regions
and will select plants based on their shape,
foliage, flower and fruit.

38
Evaluation
• List four factors that one should consider when
selecting plants for the landscape.
• Would a pH of 6 be acidic or alkaline?
• What are the two common environmental concerns
that affect plants?
• What hardiness zone are we in?
• What are the two categories of trees?

39
The End!