Data weaknesses and cross-session requests surface here so they travel with the plan — no relaying needed. The full living record is in PLANTING-ENGINE-LOG.md.
hardiness_zones is mixed-format (USDA strings like "9a-11" and FFL integer codes like [16,17,20]), so zone is used as a soft signal only — it never wrongly excludes a good Miami plant, but it also can't yet reject a truly wrong-zone one.designer_styles / layer tags for wetland/edge species tagged into upland design layers (e.g. a mangrove landing in a Feature slot on thin pools).