Grodan A-OK Starter Plugs 1.5 36/40 98/Sheet (EA)

Grodan A-OK 1.5-inch stone wool starter plugs provide a uniform propagation medium for germinating seeds and rooting cuttings. Each sheet contains 98 plugs engineered to distribute moisture while maintaining the air space needed for healthy early root development.

The dimensionally consistent plugs feature preformed planting holes and a scored, easy-separate sheet format. Once roots are established, individual plugs can be transplanted into compatible stone wool blocks, net pots, hydroponic systems or larger growing media with minimal root disturbance.

Key Features & Grower Benefits

• Uniform stone wool construction: Consistent fibre structure supports even moisture distribution and repeatable propagation results across the sheet.
• Balanced root-zone conditions: The porous material retains nutrient solution while preserving oxygen-filled pore space for developing roots.
• Preformed planting holes: Seeds and prepared cuttings can be inserted quickly without manually boring each plug.
• Scored 98-plug format: Plugs separate cleanly for sorting, spacing and transplanting, offering more flexibility than fixed plastic cell inserts.
• Clean, lightweight handling: The compact sheet is easy to hydrate, move and organize on propagation benches or inside standard nursery environments.

Recommended Applications

Grodan A-OK plugs are suited to humidity-controlled propagation areas, indoor grow tents, commercial greenhouse benches and vertical-farm nurseries. They provide a dependable starting point for crops that will later enter drip irrigation, ebb-and-flow, deep-water culture or stone wool block systems.

Use them for vegetable seeds, herbs, leafy greens, tomatoes, peppers, cucumbers, climbing vines and flowering plants. They are also practical for rooting prepared cuttings before transplanting into larger containers, greenhouse trellising programs or canopy-training systems.

Technical Specifications

Frequently Asked Questions

Q: Are Grodan A-OK starter plugs reusable?
A: They are intended for one propagation cycle. Roots grow into the stone wool structure, so reusing or attempting to sanitize established plugs may damage roots and increase the risk of transferring crop residue or pathogens.

Q: Do the planting holes accommodate both seeds and cuttings?
A: Yes. The preformed holes suit individual seeds and many commonly prepared cuttings. Select healthy, appropriately trimmed stems and avoid forcing unusually thick material into the plug.