Tradescantia leggy growth

Old stems can become bare near the pot even in good light. Increasingly long gaps and faded color in new growth point more strongly to insufficient light.

Improve light and renew the tips

Move into brighter indirect light, introducing any direct sun gradually. Prune above healthy nodes to encourage branching.

Root sound tip cuttings with their nodes in lightly moist propagation mix, then add established cuttings to the pot for fullness. Old bare sections may remain bare; healthy new tips are the material for renewal.