Observe. Integrate. Design

Module 11 / 25

Trees, Forests, Plants, and Cultivated Ecologies

Burgundy amaranth and yellow flowers in a diverse garden.

Plant selection begins with understanding how plants live, grow, and relate to their surroundings. This module develops that understanding through forest succession, niches, guilds, and examples of cultivated systems, connecting the ecology readings with choices about what to grow together.

The later resources turn to propagation, plant care, and season extension. They support two parts of your project: following the propagation of four plant types and choosing plants whose needs and roles fit your site. The reference tables and spreadsheet will help you work through those choices after considering the relationships behind them.

Topics

  • Architecture, growth, and function of trees; placement and role of forests
  • Guilds and polyculture
  • Agroforestry, tree crops, multifunctional hedgerows, and orchard design
  • Plant selection and identification; life strategies, succession, and niches
  • Plant physiology and propagation
  • Design and establishment of vegetable gardens and edible landscapes
  • Season extension: Cloches, hoop houses, greenhouses, and other techniques
  • Integrated Pest Management
  • Seed saving and exchange

What you’ll learn

Learning goals

  • Understand forest succession, plant layers, and diversity within the forest
  • Basic botany; identify types of plants and understand their roles
  • Propagate four different types of plants
  • Understand polycultures and the niches of plants
  • Design a small food garden
  • Knowledge of decision-making tools to work with pest challenges

Read, watch & explore

Getting the books · access & editions

Use your own copy, buy the book, or borrow it through a library when possible. If you are local to me, contact me about borrowing a copy. You can also contact me for information about digital or other access to assigned readings.

If your edition uses different page numbers, contact me and we can match the correct section.

For articles, excerpts, videos, and other resources, use the links in the lesson. If a video player does not load, try its source link. If you cannot access a reading or media resource, or it has no link, contact me with the module number and resource title.

Ask about books, readings or media access ↗

Forest relationships and succession

Book reading

Edible Forest Gardens, Volume 1

Dave Jacke and Eric Toensmeier

Chapter 4 — niches, relationships, and guild logic

Pages 239 to 243: succession (Chapter 6)

Pages 285 to 287: succession (Chapter 6)

Book access & editions
Layered garden with low flowering plants in front, taller flowering stems, and woody plants behind. Open full-size image
Plants occupying different heights

Low flowering plants grow beneath taller woody plants in this garden. Use the contrast in height and spread to consider the room your selected plants will need as they mature.

Source: Living Landscapes Design portfolio.

Watch

Permaculture Design for Food Video

YouTube

Consider how food production relates to the wider plant relationships introduced in the forest-garden reading.

Watch on YouTube

If the player does not load, use the source link.

Watch

Agroforestry Video

YouTube

Look at how trees and other productive elements are arranged, keeping their relationships and management in mind.

Watch on YouTube

If the player does not load, use the source link.

Watch

Alley Cropping Video

YouTube

Compare the arrangement in alley cropping with the preceding agroforestry material, paying attention to access and the space between plantings.

Watch on YouTube

If the player does not load, use the source link.

Watch

New Forest Farm Video

YouTube

Use this farm example to consider perennial plant relationships at a larger scale. Module 19 uses the same example to examine farm-scale production, access, and ongoing work.

Watch on YouTube

If the player does not load, use the source link.

Read

Defining the spatial patterns of historical land use associated with the indigenous societies of eastern North America

onlinelibrary.wiley.com

Module 1's Indigenous-roots readings introduced histories of land use. Use this eastern North American study to examine the location and persistence of woodland management and cultivation, noting differences between places. Keep that historical evidence distinct from the choices for your own site.

Open resource

Watch

Permaculture guilds part 1 - companion planting on steroids

YouTube

Connect the guild discussion with the niches and relationships in the book reading as you consider how plants might complement one another.

Watch on YouTube

If the player does not load, use the source link.

Watch

Polycultures and Guilds - Episode 1 - Apples -n- more!

YouTube

Use the apple example to work through the guild ideas from the preceding resource, with your own site conditions and plant choices in mind.

Watch on YouTube

If the player does not load, use the source link.

Propagation, plant care, and season extension

The forest and guild readings examine plants in combination. The propagation resources focus on how to establish them. Use the explanations and demonstrations to prepare for the existing four-plant activity, then consider the care those plants need over time.

Book reading

Practical Permaculture

Jessi Bloom and Dave Boehnlein

Pages 247 to 249: propagation methods

Book access & editions

Read

Propagation by Cuttings, Layering and Division - Virginia Tech Extension

Virginia Cooperative Extension

Open resource

Watch

Plant physiology and propagation Video

YouTube

Connect plant growth with the propagation methods you are considering for your four plant types.

Watch on YouTube

If the player does not load, use the source link.

Watch

Hardy Kiwi - Easy Propagation Technique

YouTube

Use this plant-specific example to think about matching a propagation method to the plant being grown.

Watch on YouTube

If the player does not load, use the source link.

Read

Integrated Pest Management - Virginia Cooperative Extension

Virginia Cooperative Extension

Open resource

Watch

Integrated Pest Management Video

YouTube

Use this video alongside the extension reading to consider how observations of a pest problem inform a response.

Watch on YouTube

If the player does not load, use the source link.

Watch

How To Identify Wild Plants - A Guide To Botanical Terms

YouTube

Use the botanical terms to make sense of plant descriptions as you work with the selection references.

Watch on YouTube

If the player does not load, use the source link.

Watch

Season Extension Techniques - OSU Extension webinar

extension.oregonstate.edu

Consider season extension in relation to your site’s growing conditions and the work involved in caring for the plants.

Open resource

Watch

Season Extension Video

YouTube

Compare the approaches discussed here with the extension webinar, looking for the conditions each approach addresses.

Watch on YouTube

If the player does not load, use the source link.

Propagation and seed saving

The propagation resources above introduce several ways of establishing new plants. The following seed-saving resources add another way to continue plant material from one growing season to the next. Use these resources to prepare for the propagation activity later in this module.

Watch

PBS Wisconsin seed-saving demonstration with Kent Whealy

PBS Wisconsin

Open resource

Plant selection and site fit

Use the plant-selection references below to compare plants with the conditions you observed in Modules 5 and 10. Consider each plant’s role, site needs, mature size, spread, toxicity, pollination needs, and when it would be established in the design. These resources prepare you for the plant-selection activity later in this module.

Book reading

Edible Forest Gardens, Volume 2

Dave Jacke and Eric Toensmeier

Appendices — references for niche fit and plant selection

Book access & editions

Explore

Plants spreadsheet

Google Sheets

Use the spreadsheet with the plant-selection references to develop your list of plants and explain the roles they would have in the design.

Open resource

Exercise & discussion

Propagation activity

Propagate four different plants using methods appropriate to each plant. Keep one record for each plant, including the propagation method, date, conditions, and what you observe as it develops. If growth continues beyond the study period, record the progress you have observed so far.

For one of the four plants, include seed saving where appropriate. Record how you determine that the seed is mature, how you collect and prepare it for storage, and how you label and store it.

Plant-selection activity

Review this Plants spreadsheet and make a preliminary selection of 10-20 plants that would work at your design site. Discuss your site conditions and proposed plant selection with me, then revise and finalize your selection. Choose plants that complement each other (i.e. make sure there are nitrogen fixers, food plants, ground covers, different sizes, shapes, and rooting patterns, etc.).

Consider moisture, sun, and other needs, as well as what stage in the implementation process they would be planted (i.e. should some be planted only once soil fertility and organic matter is better?).

Discuss placing wild forests at high elevations starting with pioneers and doing speedy/instant succession.

What to prepare

  • Your four-entry propagation record: plant, method, date, conditions, and results so far, including seed-saving details where appropriate.
  • Your 10–20-plant selection list or spreadsheet, with each plant’s role, site needs, and proposed planting stage.
  • Notes for the forest-placement and succession discussion.

Save written notes as a document or PDF. For paper maps or handwritten notes, use a clear photo or scan. You can combine related work in one file.

Share & discuss

Attach your propagation record, plant-selection list or spreadsheet, and succession notes.

Email the address listed under “Get In Touch” on my contact page. Do not use the contact form. Include the Permaculture Design Course, Module 11, and “Propagation and plant selection” in your subject or message.

Find my email address ↗

Optional quick check

Select your answers, then submit to see your score and explanations. You can retry. Results are not sent or stored.

1. How should you choose a propagation method?
2. Why check seed maturity separately from eating ripeness?
3. What should guide a plant combination?

Readings & resources

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