Soil Blocking Seed Starting Kit

A Full System for Efficient, Plastic-Free Seed Starting

Everything you need to start soil blocking with confidence—designed to support both small and large seeds from germination through early growth.

The Complete Soil Blocking Starter Kit brings together soil blockers, trays, and accessories into one cohesive system. Whether you’re starting tiny, slow-germinating seeds or larger, fast-growing crops, this kit gives you the flexibility to create the right block size at the right time—and easily move seedlings up as they grow.

Mini blocks help maximize space and speed early germination, while larger 2" blocks support strong root development before transplanting. The included cubic pins allow you to seamlessly pot up mini blocks into larger blocks, creating a smooth, efficient workflow.

Quick Highlights

• Complete soil blocking system for seed starting

• Supports both micro (3/4") and large (2") soil blocks

• Allows easy potting up from micro blocks to larger blocks

• Mesh trays provide excellent drainage and airflow

• Solid trays support bottom watering

• Extra-thick, BPA-free, food-safe #5 polypropylene trays

• Color trays help with organization and staging

What’s Included

• 1 × 3/4" Micro Soil Blocker (20-block press)

• 1 × 2" Soil Blocker (4-block press) with four ½" seed pins

• 4 × 3/4" cubic pins (for potting up micro blocks)

• 10 × 1020 Shallow Mesh Trays (Multi-Color)

• 10 × 1020 Shallow Solid Trays (No Holes, Multi-Color)

Why Gardeners Love This Kit

• Eliminates the need for plastic pots and plug trays

• Encourages strong, air-pruned root systems

• Makes transplanting easier with less root disturbance

• Efficient for both small and large seed varieties

• Organized, repeatable system that scales easily

How the System Works

• Use 3/4" micro blocks for small or slow-germinating seeds

• Start micro blocks on mesh trays (optionally with a heat mat)

• Pot up into 2" soil blocks using the included cubic pins

• Use mesh trays inside solid trays for easy bottom watering

This setup supports seedlings from germination through transplant-ready size with minimal disruption.

Tray & Material Details

• Tray size: 1020 shallow

• Tray thickness: 1.8–2.0 mm

• Material: BPA-free, food-safe #5 polypropylene

• Trays include side cutouts for easy lifting during bottom watering

A Thoughtful Way to Start Seeds

This kit provides a complete, reusable system for soil blocking—helping you grow strong seedlings efficiently while reducing waste and simplifying your seed-starting process.

Want to learn more about soil blocking? Explore our educational resources to see the system in action.