soil mix on Universal
Quick answer
If your Universal has soil mix, the most likely cause is: Standard garden soil compacts in containers, reducing pore space and suffocating roots within days. Container soil must provide: water retention (for moisture supply), aeration (for root oxygen), and drainage (to prevent saturation). Commercial potting mixes achieve this balance with peat/coir for retention, perlite/vermiculite for aeration, and bark for drainage.
Start here:
- 1. Never use garden soil alone in containers - it compacts and suffocates roots
- 2. For general houseplants: mix 60% peat or coco coir + 30% perlite + 10% compost
Why Universal gets soil mix
Standard garden soil compacts in containers, reducing pore space and suffocating roots within days. Container soil must provide: water retention (for moisture supply), aeration (for root oxygen), and drainage (to prevent saturation). Commercial potting mixes achieve this balance with peat/coir for retention, perlite/vermiculite for aeration, and bark for drainage.
How to reverse soil mix on Universal
- 1
Never use garden soil alone in containers - it compacts and suffocates roots
- 2
For general houseplants: mix 60% peat or coco coir + 30% perlite + 10% compost
- 3
For succulents/cacti: use 50% cactus/succulent mix + 30% coarse sand + 20% perlite
- 4
For moisture-loving plants (ferns, tropicals): add 20% coir + 40% peat + 30% perlite + 10% compost
- 5
Add 1 inch of coarse gravel or broken pot shards at bottom of pots over 10 inches to improve drainage
- 6
Replace top 1-2 inches of soil annually as nutrients deplete
Keep soil mix off this Universal
Use commercial potting mixes specifically formulated for containers. Ensure mix is moist but not waterlogged before planting. Check that mix feels light and fluffy, not dense like garden soil.