Mountain Valley Seed Company Coconut Coir Seed Starting Pellets 42mm — 100 Netted, Expanding, Low-Salt Plugs

Mountain Valley Seed Co 42mm pure coconut coir netted seed starting pellets are ready-to-use, renewable seed starters that expand with water to create an airy, mess-free medium for germinating and transplanting seedlings.

These compact pellets combine cleaned coconut coir and biodegradable netting to give seeds a stable, high-moisture environment that promotes strong root development without the drawbacks of peat. Each pellet arrives dry and compact; add water and it puffs up to a fluffy 2-inch-high plug, so you get a clean, consistent planting medium without mixing bags of soil or dirty pots. The neutral pH and low-salt wash make them suitable for a wide range of vegetables, herbs, flowers and nursery crops.

How do these pellets work when I’m starting seeds indoors?

Drop a pellet into a tray or small container and pour water over it; the coir expands rapidly into a firm but airy plug that cradles the seed. The netting keeps the plug intact for easy handling and transplanting, while the coir retains moisture so you don’t need to water constantly.

• Just add water: each 42mm pellet expands to about 2 inches tall.
• Netted design: holds shape for clean seeding and simplified handling.
• High water capacity: reduces frequency of watering during germination.
• Neutral pH: works for most common garden and container plants.

Why choose coconut coir pellets instead of peat or loose potting mix?

Coconut coir is a renewable fiber made from coconut husks and offers better aeration and water-holding balance than peat. It resists compaction, supports healthy root growth, and is a sustainable alternative to nonrenewable peat products.

• Renewable and sustainably sourced material.
• Greater air-to-water ratio than peat for stronger roots.
• Washed to lower salts for seedling safety.
• Less mold and compaction compared with some soil mixes.

Can I transplant seedlings directly with the netting still on?

Yes — the biodegradable netting lets you plant the whole pellet into the garden or a larger container, minimizing root disturbance. The net decomposes over time, so roots can expand without removal of the plug.

• Transplant without unpotting to avoid root shock.
• Netting is designed to break down in soil environments.
• Maintains pellet integrity through handling and transplanting.
• Works well for professional nurseries and home gardeners alike.

What sizes and quantities are included, and how do I store them?

Each package contains 100 pellets at 42mm diameter (about 1.75 inches) and roughly 1/3 inch tall when dry. Store them in a dry, cool place in their container or a sealed bag to keep them ready for your next planting session.

• Pack of 100 pellets, compact for easy storage.
• Dry dimensions: 42mm diameter, ~1/3" thickness.
• Expanded height: approximately 2 inches after watering.
• Keep dry and cool to preserve performance until use.

Who is this product for: These netted coconut coir seed starting pellets suit hobby gardeners, greenhouse operators, and professional growers who want a cleaner, more sustainable alternative to peat and bagged soil. They’re ideal when you need consistent, easy-to-handle starter plugs for vegetables, herbs, ornamentals or nursery crops and when transplant success and root health are priorities.