Universal Bonsai Soil Mix

The Perfect Bonsai Soil for Fast Drainage, Healthy Roots, and Confident Daily Watering

A great bonsai starts from the ground up — and the right soil makes all the difference.

Our Universal Bonsai Soil Mix is a professional, in-house blended bonsai soil designed to deliver the ideal balance of drainage, aeration, moisture retention, and nutrient uptake for container-grown plants. It’s especially helpful during wetter seasons when poor drainage can lead to root problems.

This mix is built to support daily watering without the stress of over-watering, giving your bonsai roots the oxygen they need while still holding enough moisture to keep your tree thriving.

What’s Inside

This high-performance blend includes:

• Pumice – boosts aeration and helps retain the right amount of moisture

• Black Lava Rock – improves drainage and keeps the soil structure stable

• Calcined Clay – holds water efficiently while supporting pH balance

• Pine Bark Fines – adds organic structure and helps retain nutrients over time

Why You’ll Love It

• Fast-draining + airy to protect roots from staying too wet

• Balanced moisture retention for strong, steady growth

• Supports nutrient uptake and healthy root development

• Great for rainy seasons and growers who water frequently

• Blended in-house by The Bonsai Supply team

Ready to use: No mixing required. Just pot, water, and grow.