Natural variation needs a commercial rule
Living trees are not manufactured units, but a wholesale buyer still needs a range that can be received, priced and sold consistently. The solution is not to demand perfect uniformity; it is to define acceptable variation clearly.
Build practical size bands
For each product group, record minimum and maximum overall height, crown spread, clear trunk where relevant, trunk description and root-ball or container format. State the quantity expected within each band.
Define visual consistency
Size alone does not create a coherent range. Describe form, crown balance, trunk style, aerial-root preference and minimum presentation quality. Use reference images to communicate direction without treating every natural detail as identical.
Choose a sampling method
Request group views plus examples near the minimum, middle and maximum of the proposed range. Larger or more variable orders may require additional sampling, video review or an on-site visit.
Agree what happens when a tree falls outside the range
State whether it may move to another size band, be replaced, require approval or be excluded. Confirm how substitutions will be documented and when the final quantity becomes fixed.
Connect tolerances to loading
Prepared crown and root-ball dimensions influence container use. Do not tighten a specification only for visual reasons while ignoring how preparation and protection affect the delivered condition.
Frequently asked questions
Should the range be based only on height?
No. Crown width, form, trunk character and root preparation all affect commercial consistency.
Can one batch contain several forms?
Yes, if they are intentionally separated into clear product groups with their own quantities and acceptance rules.