The original article describes larger pines continuing in open ground, medium trees developing in deep containers, and smaller plants beginning early structural work. It proposes further years of trunk development before potting some trees into a bonsai container. The species, seed source, climate, starting sizes and measured results are not identified, so the exact calendar cannot be treated as a repeatable protocol.
Choose a development path by the tree in front of you
- Field development: useful when a strong trunk and root spread are the main goals and the site, species and climate support safe in-ground growth. Plan how the trunk line and future roots will be managed before planting.
- Large-container development: offers more control and easier movement, but container volume and mix change growth, water use and root architecture. Check drainage and stability rather than choosing a fixed liter size from an old article.
- Early refinement: appropriate only when the tree already has the structure and health needed for it. A small seedling that looks “finished” may still need years of trunk and root development.
Branch selection is a design decision, not a count
The historic text recommends keeping a set number of shoots and removing others at a stated time. A better decision begins with the trunk line, useful branches, vigor and the intended future design. A vigorous shoot can be valuable for thickening; another may be needed as a future branch or sacrifice branch. Removing it too soon can slow trunk development. Keeping it too long can create an awkward swelling or poor transition.
Sketch alternatives before removing a major branch. Record the tree’s dimensions, photographs and the reason for each cut. That creates an evidence trail for the next decision and makes a multi-year case study more useful than a list of dates.
Root work needs species and site context
The archive proposes cutting roots in the ground with a spade and lifting a tree after a fixed interval. Do not repeat that instruction as a general pine technique. Root pruning can alter the distribution of roots and the tree’s ability to take up water. The outcome depends on species, soil, timing, method and aftercare. A field-grown tree also needs lawful access, a workable collection plan and a realistic recovery setup.
If this is a private nursery or garden specimen, root preparation should follow species-specific guidance and the grower’s experience. If it is a wild tree, collection rules, land permission and ecological impact come first. Never publish a vulnerable collection location.
What a useful fifth-year record would include
To turn this into a true case study, record the species and seed provenance; sowing and transplant dates; trunk diameter and height; growing medium and container or field conditions; interventions; winter protection; and survival or growth after each move. Where those facts are not available in the archive, they remain unknown rather than being reconstructed from guesswork.
Continue the chronology with year four, year three, year two, and year one.
Sources and further reading
- Growing Tree Seedlings from SeedIowa State University Extension. Seed dormancy and handling vary by species; pine seed should be identified before treatment decisions.
- The Art of BonsaiVirginia Cooperative Extension, Virginia Tech. General bonsai reference; its dates and procedures need adaptation to species and local conditions.
- Bonsai: Growing Miniature TreesRoyal Horticultural Society. General bonsai overview, including species-specific care and pruning.
The five historical pine pages do not identify species, seed provenance, growing location or measured outcomes. Their calendar and techniques are retained as archive context, not presented as a universal pine-growing protocol.