Hello,
It seems to me that the wood chips are used as mulch, in order to reduce evaporation and acidify the soil and that they are put around the plant and not at the bottom of the pot. Red wood is more resistant over time.
Bonjour,
Il me semble que les copeaux de bois servent de paillis, afin de diminuer l’évaporation et d’acidifier le sol et qu’on les met autour de la plante et non au fond du pot. Le bois rouge est plus résistants dans le temps.