Seed Raising Potting Mix - 5L

What is Seed Raising Potting Mix used for?

This mix is designed for germinating seeds and striking cuttings. It’s ideal for vegetables, herbs, flowers, and ornamental cuttings in seed trays, cell trays, or small pots. It provides an airy, evenly moist root zone to help young plants thrive without waterlogging.

What’s in Seed Raising Potting Mix?

It’s a premium blend of coco coir, perlite, and sieved compost—no peat or cheap fillers. Coco holds moisture evenly, perlite improves airflow, and compost provides gentle nutrition and beneficial microbes to support early growth.

Is Seed Raising Potting Mix ready to use?

Yes—no mixing required. It’s pre-blended for optimal propagation. You don’t need fertiliser for germination, but start feeding lightly once seedlings develop true leaves. It’s compatible with both liquid and slow-release fertilisers when used appropriately.

How should I water seeds and seedlings in this mix?

Pre-moisten the mix before sowing. Keep it evenly moist like a wrung-out sponge—not dripping. Bottom-watering is ideal, but gentle top-watering works too. Avoid compacting the mix in trays, and don’t let seedlings sit in standing water.

Should I use a humidity dome or heat mat?

Yes—use a dome during germination to stabilise humidity, but remove or vent it once seeds sprout. A heat mat can improve germination speed for warm-season crops. Keep trays warm but not hot, and give seedlings strong light to prevent legginess.

When should I transplant seedlings out of the mix?

Once roots fill the cell and seedlings have several true leaves, it’s time to move them into a more nutrient-rich potting mix or garden soil. This mix supports early growth but isn’t designed as a long-term growing medium.

Can I add anything to customise the mix?

You can lightly amend with extra perlite, vermiculite, or worm castings if needed—depending on your environment and watering style. Just don’t overload it or you may reduce airflow or increase disease risk.

Can Seed Raising Potting Mix attract fungus gnats or mould?

Like any moist organic mix, it can if conditions are too wet or stagnant. Let the surface dry slightly between waterings, use good airflow, and avoid overusing humidity domes. Bottom-watering also helps reduce gnat risk.

Is Seed Raising Potting Mix sterile or reusable?

It’s clean and purpose-made, but not lab-sterile. For best results, don’t reuse it for germination—it can lose structure and carry pathogens. If reused at all, limit it to less-sensitive plants or potting jobs, not seed trays.

Is Seed Raising Potting Mix peat-free and suitable for microgreens?

Yes—it uses coco coir instead of peat. It’s also suitable for microgreens with proper hygiene and airflow. For cactus or succulent seedlings, you may prefer a grittier mix with faster drainage to reduce rot risk.

What’s the best way to get great results with this mix?

Pre-moisten before sowing, use a humidity dome for germination, give strong light and airflow after sprouting, and water gently. Use containers with drainage holes, and transplant once growth speeds up and roots fill the tray.