That's mineral salt buildup — and it's a good sign! As water and fertilizer pass through the breathable bag fabric, dissolved salts (calcium, magnesium, etc.) are left behind when moisture evaporates. This means your HOKBG Grow bag is working properly — draining excess water and carrying salts away from the root zone, preventing salt stress on your plan...

Handles for direct machine operation require special customization. Please inform our sales manager when placing your order.

If placed HOKBG Grow Bags directly on soil: Fine roots may grow through the bottom, but the main root will not. If placed HOKBG Grow Bags on plastic film or a hard surface: No roots will grow through.

3–10 years, depending on the latitude and altitude of your location. Please contact our sales manager for a more specific estimate.

Yes, HOKBG grow bags offer excellent water permeability. Our grow bag has a mesh structure, so it is permeable to both air and water. For large-scale planting, we recommend using drip irrigation or other automatic watering systems for best results.