Grodan A-OK 启动火花塞 - 2 英寸（50 个火花塞）

Basalt mostly helps plants indirectly by improving the root-zone environment through better drainage, oxygen flow, and long-term soil stability, while only slowly contributing minerals as it weathers over time. It’s unique because its biggest benefits come from physical soil performance and consistency rather than quick nutrient release like fast-acting amendments.

Chalk rock helps stabilize the root-zone by buffering against sudden pH drops while slowly contributing calcium, which supports strong roots and healthy new growth. It’s unique because it actively resists rapid acidity shifts instead of behaving like a purely inert media ingredient.

A hydrophilic binder acts like a water-loving glue that helps tiny particles stay evenly placed while also helping water spread and re-wet more uniformly, which supports steadier root function. It’s unique because it improves both physical cohesion and water behavior at the same time, unlike simple adhesives or simple wetting ingredients that only do one job.