Composts & Potting Mixes
Find the Right Soil for Thriving Houseplants at Johnstown Garden Centre
The Foundation of Healthy Houseplants
The secret to healthy, thriving houseplants starts below the surface—in the soil. Choosing the right compost or potting mix ensures strong root development, proper drainage, and the right moisture balance, helping your indoor plants flourish.
At Johnstown Garden Centre, we stock a carefully selected range of houseplant composts and specialist potting mixes to support all plant types, from lush tropical foliage plants to cacti, succulents, orchids, and bonsai. Whether you're repotting, propagating, or improving soil health, you'll find the perfect blend for your plant’s specific needs.
Why Choosing the Right Potting Mix Matters
Houseplants rely entirely on their potting mix for nutrients, drainage, and moisture control. Without the right soil structure, they can struggle to absorb water efficiently, leading to weak roots, slow growth, and poor health. A well-balanced mix provides aeration, drainage, and moisture retention, preventing overwatering and root rot. Using the wrong soil can cause compaction and nutrient deficiencies, making it harder for plants to thrive.
Match the mix to your plant’s needs
Tropical plants need airy, moisture-retentive soil, while succulents thrive in fast-draining, sandy blends.
Ensure proper aeration & drainage
A well-balanced mix prevents compaction, allowing roots to breathe and reducing the risk of overwatering.
Look for nutrient-rich ingredients
High-quality composts contain organic matter, bark, and minerals to support healthy, sustained plant growth.
Refresh soil every 12-18 months
Over time, potting mix breaks down and loses nutrients, so repot regularly to keep plants thriving.
Shop Houseplant Composts & Potting Mixes
