BLog

Standing in front of a wall of soil bags can feel surprisingly overwhelming. Potting mix, garden soil, topsoil, amendments—what’s the difference, and which one do you actually need?

At Sunnyside Gardens, we carry a wide range of soils and soil amendments because where and how you’re planting matters. This guide breaks it down so you can choose the right product with confidence.

Step One: Where Are You Planting?

The most important question to answer before buying soil is simple:

Are you planting in a container, or are you planting in the ground?

These two situations require very different products, and using the wrong one can lead to poor drainage, stressed roots, and disappointing results.

Planting in a Container

If you’re planting in a pot, planter, or window box, you need potting soil (sometimes labeled potting mix).

Potting soil is specifically engineered for containers and is very different from soil found in the ground.

What’s Inside Potting Soil?

Most potting soils contain:

• Lightweight organic matter (such as composted plant material or peat moss)
• Ingredients that create air space, like perlite or vermiculite (the white or silvery-beige particles)

This combination allows water to drain properly while still holding enough moisture for healthy roots.

Some mixes may also include:

• Slow-release fertilizer
• Beneficial microbes
• Water-retaining crystals

At Sunnyside, we offer several potting soil options, including organic blends.

Specialty Potting Mixes

Certain plants have very specific needs. If you’re potting up:

• Succulents or cacti
• Orchids
• Bonsai
• African violets

Look for plant-specific potting mixes. These are designed with the right drainage, texture, and moisture balance for each plant type.

Planting in the Ground

If you’re planting directly into garden beds or lawn areas, potting soil is not the right choice. Instead, look for products designed to work with your existing soil.

Garden Beds

For vegetable gardens, flower beds, and landscape planting, garden soil is a great option.

Garden soil:

• Adds organic matter to improve soil structure
• Helps loosen heavy or compacted soils
• Often includes fertilizer to give plants a strong start

Lawn Areas

If your goal is healthy turf, choose a soil formulated specifically for grass.

Lawn soils typically include:

• Fine-textured soil
• Fertilizer designed for turf grass growth

Topsoil

Topsoil is a versatile, general-use product.

It works well for:

• Filling low spots
• Grading
• General landscape use

Topsoil should not be used in containers, where proper drainage is critical.

Understanding Soil Amendments

Soil amendments are not meant to be used on their own. Instead, they’re mixed into existing soil or potting mixes to improve specific qualities.

Common Soil Amendments

• Peat moss – Adds air space and slightly acidifies soil
• Perlite – Improves drainage and air flow in container mixes
• Vermiculite – Adds air space and helps retain moisture; commonly used for seed starting
• Compost – Adds organic matter, improves soil texture, increases water retention, and contributes nutrients

Amendments allow you to fine-tune your soil to better match your plants’ needs.

Healthy Plants Start with the Right Soil

Soil is more than just something to hold your plants upright—it’s the foundation of their health. Choosing the right product sets your plants up for stronger roots, better growth, and long-term success.

If you’re ever unsure which soil or amendment is right for your project, stop by Sunnyside Gardens and talk with one of our knowledgeable team members. We’re always happy to help you get started on the right foot.