Aerial roots are a characteristic, not a standard grade
Singapore National Parks describes Ficus microcarpa as capable of producing numerous slender aerial roots, some of which develop into woody supporting roots. In commercial sourcing, however, individual trees may show very different levels of visible root development. The botanical name alone does not guarantee a particular appearance.
Describe the complete tree form
A useful visual specification considers the relationship between crown, trunk and roots. State whether the design calls for a broad umbrella crown, a compact shaped form, a multi-trunk composition, a low sculptural specimen or a clearer trunk with the canopy held above circulation.
How to evaluate aerial-root character
- Number and visual density of roots
- Position around the trunk and canopy
- Thickness and degree of maturity
- Whether roots form curtains, clusters or pillar-like supports
- Visibility from the project primary viewpoint
- Relationship between roots, trunk mass and crown scale
A buyer should use several current viewpoints because one front-facing photograph can exaggerate or hide the root structure.
Trunk character and proportion
Record whether the tree is single-trunk, multi-trunk or visually fused by roots. For complex specimens, a single circumference figure may not explain the appearance. Combine an agreed measurement method with close views and a human-scale or measuring reference.
Crown form completes the composition
Strong aerial roots do not automatically make a suitable project tree. Compare crown width on two axes, branch distribution, balance and the amount of pruning or tying expected before transport. The selected tree should work as one composition.
Wholesale versus specimen selection
A wholesale programme may define acceptable root-character bands and use representative batch evidence. A landscape specimen is normally reviewed and identified individually. Do not present one exceptional tree as proof that an entire batch has the same aerial-root expression.
Questions to include in a sourcing brief
- Is aerial-root character mandatory or preferred?
- Which reference image best communicates the direction?
- What crown and trunk proportions are required?
- Will each tree be individually selected?
- Which side will face the primary viewing point?
- What preparation may change the appearance?
GLOBAL FICUS can search suitable Shaxi nurseries using the same visual and measurable criteria. Send your preferred form and reference images.