The underground plant organ that absorbs water and nutrients from soil, anchors the plant, and stores reserves.
Roots are critical but hidden. They absorb water (essential for photosynthesis and cooling) and nutrients (nitrogen, phosphorus, potassium, etc.). They anchor plants against wind. Some store food reserves (carrots, beets). Root health determines plant health. Compacted soil, waterlogging, or root damage weakens or kills plants despite adequate water and nutrients.
Healthy roots mean healthy plants. Problems like wilting, yellowing, or stunting often trace to root problems (compaction, waterlogging, damage, disease).