Option B — Horticulture

Req 8b5c — Woody Ornamentals in the Landscape

8b5c.
Woody Ornamentals

This track focuses on trees and shrubs grown for their landscape value—form, foliage, flowers, and ecological contributions. All five sub-requirements must be completed. Start planting as early in the season as possible; woody plants need time to establish and for you to observe them adequately.

Requirement 8b5c1

8b5c1.
Woody Ornamentals Plant five or more trees or shrubs in a landscape setting. Take full care of the trees or shrubs you have planted for one growing season..

“Landscape setting” means in-ground in a yard, park, Scout camp, or other outdoor site—not containers. The five plants can be the same species or a mix.

Full care for one season includes:

Keep notes on each plant: what you planted, where, when, and how they progressed. Your counselor will want to know.

Requirement 8b5c2

8b5c2.
Woody Ornamentals Prune a tree or shrub properly. Explain why pruning is necessary..

For woody ornamentals, pruning serves structural, health, and aesthetic goals:

Always cut just outside the branch collar (the swollen ring at the base of a branch). The collar produces chemicals that close the wound; cutting into it removes that protective tissue.

Be prepared to explain each cut you make to your counselor and why it was necessary.

Official Resources

Ask an Arborist: Why Do I Need to Prune? (video)
Ask an Arborist: What Are the Rules of Pruning? (video)
Ask an Arborist: The ABC's of Pruning (video)

Requirement 8b5c3

8b5c3.
List 10 trees (in addition to those listed in general requirement 6 above) and tell your counselor how each is used in the landscape. Give the common and scientific names.

Your list must be trees you haven’t already discussed in req 6. For each entry, note its primary landscape use—shade, screening, specimen focal point, street tree, wildlife value, seasonal color, etc.

Format your list like this:

Common NameScientific NamePrimary Landscape Use
ServiceberryAmelanchier canadensisSmall ornamental; spring flowers, bird-attracting fruit
Japanese mapleAcer palmatumSpecimen focal point; fall color, fine texture
Eastern redbudCercis canadensisSpring-flowering understory; native

Spend time at a nursery or arboretum to observe real specimens—you’ll give a much richer description than if you rely only on reference books.

Official Resources

10 Most Popular Ornamental Trees for Your Garden (video)

Requirement 8b5c4

8b5c4.
Describe the size, texture, color, flowers, leaves, fruit, hardiness, cultural requirements, and any special characteristics that make each type of tree or shrub attractive or interesting.

For each of the 10 trees from 8b5c3, you should be able to describe:

You can use a plant database, nursery catalog, or the USDA Plants Database to gather this information—but practice describing it out loud before your conference.

Requirement 8b5c5

8b5c5.
Tell five ways trees help improve the quality of our environment.

Be specific and ready to explain each:

  1. Carbon sequestration: Trees absorb CO₂ during photosynthesis and store carbon in their wood, helping offset greenhouse gas emissions.
  2. Air quality improvement: Leaves filter particulate matter and absorb pollutants including ozone, sulfur dioxide, and nitrogen dioxide.
  3. Urban heat island reduction: Tree canopy shades surfaces and releases water vapor through transpiration, cooling air temperatures by several degrees.
  4. Stormwater management: Root systems and leaf litter increase soil permeability and slow runoff, reducing flooding and erosion.
  5. Wildlife habitat: Trees provide nesting sites, food (fruit, seeds, insects), and cover for birds, mammals, and pollinators.

Bonus talking point: trees also reduce energy costs by shading buildings in summer and blocking wind in winter.

Official Resources

The Importance of Trees for Our Environment and Health (video)
6 Ways Trees Benefit All of Us (website) The Nature Conservancy's overview of the environmental, health, and economic benefits that urban and rural trees provide to communities. Link: 6 Ways Trees Benefit All of Us (website) — https://www.nature.org/en-us/what-we-do/our-priorities/build-healthy-cities/cities-stories/benefits-of-trees-forests/