Potted Plant
Substrates
for Container Size
Pots under 15 liters (~4 gallons) are common for houseplants, herbs, succulents, and young plants. These smaller containers dry out quickly and limit root space — so they need a mix that supports balance and health:
- Retains moisture without becoming soggy.
- Provides enough aeration to prevent root rot.
- Lightweight and well-draining for easier maintenance.
- Nutrient-rich to sustain steady growth in tight spaces.
Large pots (15 liters or 4 gallons and up) tend to compact, hold water unevenly, and get heavy. Mixes for these containers use coarse structure to keep soil open, moisture-regulating components for even watering, and lightweight additives to reduce bulk.
- For containers 15+ liters (or 4 gallons and up).
- Coarse structure – prevents compaction and keeps roots breathing.
- Moisture regulation – ensures even water distribution throughout the pot.
- Lightweight additives – reduce overall weight for easier handling.
Generic mix won’t cut it
Root space, drainage, and moisture retention all shift
with pot size, and a generic mix won’t cut it. Peatman
formulas match your setup, from trays to large planters.
Peatman-selected substrates are mixed with precision, balancing water retention, aeration, and stability to meet the needs of your seedlings at every stage. We are agronomists, and we know everything-peat.
