In the competitive world of landscaping supplies, SBI Building Materials stands out with a one-of-a-kind soil division. We go beyond just offering basic soil products – we provide a comprehensive selection of premium soils specifically designed to nourish your plants and elevate your gardening experience.

Grow Happy & Healthy Plants! Soil is the foundation for vibrant gardens! Rich in nutrients and teeming with life, soil nourishes your plants. Amendments give your soil a boost! These additives improve drainage, fertility, and more to create the perfect home for your plants. Together they create a thriving environment for all your gardening needs!

Keep on reading to about the variety of different soil options that we provide for you!

Nitrolized Sawdust

Fir or redwood sawdust, enriched with nitrogen. This is a man-made matter that adds Nitrogen back into your soil. Can also be used to break up that Sonoma County clay soil.

Garden Compost

This unique house mixed product is composed of Mushroom Compost, Redwood Sawdust, Chicken Manure & House Compost. This is a product that needs to be mixed properly with existing soil, as Nitrogen output withh begin immediately.

Arbor Mulch

Aged tree trimmings, composted. Arbor Mulch is a natural organic ground cover - putting your recycled materials to work!

Mushroom Compost

Dried Steer manure, wheat straw, peat moss, cottonseed meal, gypsum, lime. Great compost for adding Nitrogen to your soil, as well as adding a higher concentration of nutrients and minerals. Be sure to mix this product properly with existing soil as it can be quite ‘hot’.

Container Mix

This house mix is “soil less”, it’s composed of 5/16" Lava, Nitrolized Sawdust, & Lignapeat. Added to this mixture are Urea Formaldhyde, Dolomite Lime, Triple Super Phophate, Oyster Shell, & Iron Sulfate. This is a lightweight soil with lots of nutrients & great drainage - mainly used for nursery containers.

House Compost

Made here in our yard & ‘cooked’ to perfection, our House Compost is made of Redwood Sawdust, Rice Hulls, & Chicken Manure. This lightweight fluffy compost would be a great addition to your garden bed. Mix in with your existing soil.

420 Mixx

A mixture of bark media with perlite & a luxurious fertilizer package designed for Prop 215 use. Proven outstanding for vegetable gardens! Made up of 1/4" minus Fir Bark, Lignapeat, House Compost, Perlite, and a fertilizer package that consists of Blood Meal, Bone Meal, Kelp Meal, & Sulfate Potash.

Premium Top Soil

This house mixed soil is composed of Sandy Loam, Green Compost, House Compost, & Chicken Manure. This is a great general planting soil, adding to existing soil, or root-tilling into existing soil to raise elevations.

Top Soil

This house mixed soil is composed of House Compost, Green Compost, & Sandy Loam. This is a great general top soil - it’s ideal for landscaping, and planting trees.

Planter’s Mix

This house mixed soil is a mixture of House Compost,Green Compost, Sandy Loam, Mushroom Compost, 5/16" Lava, & Organic Fertilizer. Planter’s Mix offers more drainage than average soil, & it’s perfect for planting directly into pots & planter boxes.

Amended Loam

This house mixed loam is composed of Sandy Loam, House Compost, & Green Compost. This is a heavy soil-great for landscape sculpturing or mounding, often used under sod.

Organic Compost

Composted green yard waste. This is great for top dressing, & a basic soil amendment. Also known as Organic Compost.

Visit SBI Building Materials and SBI Irrigation & Lighting today to explore the wide variety of products available and find the perfect solutions to elevate your home's curb appeal and outdoor living experience.