Quick answer
A propagation medium has a different job from a coarse nursery mix. Small seeds and young roots need consistent moisture, useful pore space and a texture suited to trays, cells or blocks.
A propagation medium has a different job from a coarse nursery mix. Small seeds and young roots need consistent moisture, useful pore space and a texture suited to trays, cells or blocks.
Match particle size to the propagation system
A mix for small plug cells or soil blocks needs finer, more uniform material than a long-term tree container.
Balance moisture and air
Seeds need consistent moisture, but saturated media can reduce oxygen around developing roots.
Do not over-fertilize young seedlings
The fertility program should match the crop and stage of growth.
Plan the next transplant step
Seed-starting media is often only the first stage. Seedlings may later move into a different container or production mix.
Use a blocking mix for actual soil blocks
Soil-block production needs enough cohesion to hold the block together while still supporting root development.
- ProEarth Organic Seeding Mix is intended for seed-starting applications.
- ProEarth Organic Blocking Soil Mix is designed specifically for soil blocks.
- Commercial growers can request samples and discuss crop-specific media.
Turn the guide into an order.
Use the soil finder, open a product calculator, or send Specialty Soils your project details.
Frequently asked questions
How do I know which Specialty Soils product fits my project?
Use the What Soil Do I Need tool, compare the products linked in this guide, or send us the project details for a recommendation.
Can I buy this material in bulk?
Many products are available in bulk, bagged, or both. The product page shows current formats and whether a firm online price is available.
Can Specialty Soils deliver it?
Bulk delivery is available depending on material, order size, access and destination. Exact delivery pricing is confirmed before scheduling.
Continue through the professional decision path
Connect the production question to the appropriate media family, technical support and commercial review.
