Choosing the Right Soil for Your Plants
Whether you’re setting up a backyard garden or caring for greenery inside your home, the soil you use plays a major role in plant health. The right mix provides essential nutrients, supports root growth, and ensures proper drainage — all critical for vibrant, thriving plants.
At Seymour Building Supplies, we offer a wide range of high-quality soils tailored for different gardening needs. Here’s our expert guide on what soil to use for garden beds and which is best for indoor plants.
What Soil to Use for Garden Beds
Garden beds need rich, well-structured soil that supports a variety of plant types — from vegetables and herbs to flowering plants and shrubs. A good garden bed soil should hold moisture, drain well, and contain plenty of organic matter.
The best option: Garden Mix
Our Premium Garden Mix is ideal for most raised or in-ground garden beds. It typically includes:
- Topsoil for structure and volume
- Compost for nutrients and moisture retention
- Sand or loam to improve drainage
- Organic matter to feed the soil and plants naturally
This combination creates a balanced, nutrient-rich environment that helps both root development and plant growth.
If you’re growing vegetables or herbs, look for a Veggie Mix, which contains extra organic material and fertiliser tailored for edible crops.
Benefits of Using the Right Soil in Garden Beds
- Better plant growth – Rich soil supports deeper, stronger roots
- Improved drainage – Reduces the risk of overwatering and root rot
- Fewer weeds – Good soil structure helps suppress unwanted growth
- Long-term performance – High-quality soil feeds your garden naturally over time
If you’re setting up a new garden bed, it’s worth investing in the right soil from the start.
Explore our range of soils and landscaping supplies here.
Which Soil Is Best for Indoor Plants?
Indoor plants have different needs compared to outdoor gardens. Since they grow in pots, the soil must provide excellent drainage while still holding enough moisture and nutrients.
The best option: Premium Potting Mix
A quality potting mix is specially formulated for potted plants. It’s lighter than garden soil and includes components such as:
- Coconut coir or peat moss to retain moisture
- Perlite or vermiculite for aeration and drainage
- Compost or slow-release fertiliser for nutrients
Some potting mixes are tailored for specific plant types. For example:
- Cacti and succulents need a fast-draining mix with extra sand or grit
- Tropical plants like monsteras or ferns prefer moisture-retentive soil with organic material
- Orchids grow best in chunky mixes with bark and charcoal for airflow around the roots
Using regular garden soil for indoor pots is not recommended, as it’s too heavy and may compact over time, leading to poor drainage and root health issues.
Tips for Healthy Indoor Plants
- Always check your plant’s specific soil requirements
- Repot every 12–18 months to refresh nutrients and allow root space
- Add drainage holes and use saucers to avoid water build-up
- Don’t overwater — even the best soil can’t save a plant from soggy roots
Need help choosing the right mix? Our team at Seymour Building Supplies is happy to help match the perfect potting mix to your plants.
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Final Thoughts
Using the right soil can make all the difference in how your plants grow — both inside and out. Whether you’re setting up a vegetable garden or adding greenery to your home, choosing the right mix gives your plants the best chance to thrive.
At Seymour Building Supplies, we stock premium garden and potting soils that are ready to support your growing space. Pop in, give us a call, or check out our product range online to get started.
