1. Introduction to Classifying & Selecting Landscape Plants

2. Objective 1: Identify and categorize landscape plants
Explain systems used to classify plants
Identify types of plants used in landscape applications
Explain the use of USDA plant hardiness zone map

3. The Plant Kingdom
Plants make up one of the five kingdoms of living things
Plants are classified into smaller groups based on shared characteristics

4. Plant Classification: Division of Characteristics
primary distinguishing factor:
Non-Flowering
Flowering

5. Non-Flowering Moss Ferns Gymnosperms

6. Reproduce through spores
Moss
No roots
No vascular tissue
Reproduce through spores

7. Reproduce through spores
Ferns
Roots
Vascular tissue
Reproduce through spores

8. Reproduce through seed without flowers
Gymnosperms
Roots
Vascular tissue
Reproduce through seed without flowers

9. Flowering Monocots Dicots

10. Cotyledons (initial seed leaves)
Monocot
One cotyledon
Mono-one
Cot-initial seed leaves
Dicot
Two cotyledons
Di-two
Cot-initial seed leaves

11. Veins parallel to leaf blade
Leaf Veins
Monocots
Veins parallel to leaf blade
Dicots
Net-like veins

12. Roots Monocot Dicot Taproot Like a carrot Fibrous

13. Plant Classification: Hierarchical Classification
Kingdom
Phylum
Class
Order
Family
Genus
Species

14. Plant Classification: Hierarchical Classification
Plant names are listed as:
Genus-written in italics
Species-written in italics
Cultivar-not italicized, in quotation
Known as Trinomial Nomenclature because of the three names

15. Plant Classification: Hierarchical Classification
Known as a plant’s BOTANICAL NAME
Standard-doesn’t change based on location
Plants have “common names”
Coneflower
Snapdragon
Plants can have multiple common names & they can be different based on location

16. Hierarchical Classification Trinomial Nomenclature
Sheridan Spire Dawn Redwood (common name)
Metasequoia glyptostroboides ‘Sheridan Spire’
Metasequoia- GENUS
glyptostroboides-SPECIES
‘Sheridan Spire’-CULTIVAR

17. Plant Classification: Life Cycles
Annual
Completes life cycle in one growing season
Biennial
Completes life cycle in two growing seasons
Perennial
Life cycle exceeds two years

18. Plant Classification: Perennial Life Cycles
Herbaceous Perennials
Woody Perennials
Stems die back all the way to the ground
New growth is generated each year from the roots
Have persistent, bark covered or “woody” stems and branches
Deciduous
Lose leaves in the fall, regenerate in the spring
Evergreen
Do not lose leaves

19. Plant Classification: USDA Zones
Plants survive in a certain range of temperature
This range is called a zone
Plants that survive in one climate might not survive in another
Range of zones: 1-15

20. USDA Hardiness Zone Map

21. USDA Hardiness Zones for Utah
Zones 4A-9A
Colder the zone, the lower the number