THC Atlas Diagnostic Card

Root-Zone Problem Card

Use this card when leaf symptoms may be caused by the hidden root zone: saturation, low oxygen, compaction, salt buildup, root damage, media behavior, or irrigation mismatch.

Print / Save PDF Open Root-Zone Diagnostics Open Root Oxygen

Field checklist

Check moisture pattern before assuming deficiency.
Look for slow drainage, compaction, channeling, or perched water behavior.
Review root-zone oxygen risk from saturation or dense media.
Compare symptoms against recent irrigation, transplant, feed, and environment changes.
Inspect roots when appropriate for color, smell, texture, and branching.

Rule: root-zone issues often create nutrient-looking leaf symptoms.

Root-zone problem map

Diagnostic root-zone map showing saturation, compaction, salt stress, low oxygen, damaged roots, temperature stress, and healthy root-zone targets.

Production visual v1: root-zone problem map for field checks and Grow Doc inputs.

Oxygen & saturation check

Root-zone comparison showing balanced oxygenated media, saturated low-oxygen media, compacted media, and too-dry conditions with likely leaf and root responses.

Use this visual to separate balanced moisture, saturation, compaction, and drought stress.

Measurements to pair

moisturecontainer weightdrainagepHECroot appearancemedia type

Grow Doc prompt

I am using the Root-Zone Problem Card. Symptoms are [x], moisture/drainage is [x], pH/EC is [x], media is [x], roots look/smell [x], and recent changes are [x]. Help rank possible root-zone causes and the safest next checks.