growing media on Universal
Quick answer
If your Universal has growing media, the most likely cause is: Container growing media must balance water retention (for moisture supply), aeration (for root oxygen), and drainage (to prevent saturation). Peatmoss provides 60-70% water retention with low aeration; sand provides excellent drainage but no water retention; perlite provides 30-40% air porosity with minimal water retention; vermiculite provides moderate water retention with some aeration.
Start here:
- 1. For succulents/cacti: increase perlite to 50%+ for rapid drainage
- 2. For tropicals requiring moisture: add coir or vermiculite to boost retention
Why Universal gets growing media
Container growing media must balance water retention (for moisture supply), aeration (for root oxygen), and drainage (to prevent saturation). Peatmoss provides 60-70% water retention with low aeration; sand provides excellent drainage but no water retention; perlite provides 30-40% air porosity with minimal water retention; vermiculite provides moderate water retention with some aeration.
How to reverse growing media on Universal
- 1
For succulents/cacti: increase perlite to 50%+ for rapid drainage
- 2
For tropicals requiring moisture: add coir or vermiculite to boost retention
- 3
The ideal media achieves 20-30% air porosity after watering while maintaining adequate moisture for 2-3 days between waterings
- 4
Coco coir can replace peat as a more sustainable alternative with similar water retention but lower nutrient holding capacity
Keep growing media off this Universal
For Dracaena: use 1:1 peat + sand for best stem diameter and leaf area; use pure peatmoss for maximum vegetative growth.