Mint Container Soil Mix
Mentha spp.
Moisture-loving herb mix for mint — high water retention, steady fertility, and always solo (mint chokes neighbors).
- Container:
- 1-3 gal — always its own pot
- pH:
- 6–7
- EC:
- 1.2–2 mS/cm
- Light:
- Full sun to part shade
Components
Percentages by volume. Quantities scaled for a 2-gallon container (US units).
| Component | % | Amount |
|---|---|---|
| Quality potting mix Base structure, initial nutrients | 40% | 3 qt |
| Coco coir (low-EC, buffered) CEC, moisture buffering | 30% | 2.5 qt |
| Vermicompost / Worm castings Nutrients, microbes, growth hormones | 20% | 1.5 qt |
| Perlite Drainage, aeration
Alternates: Pumice | 10% | 3.25 cup |
Per-container amendments
Scaled linearly to your container size. Apply at transplant or as side-dress per the notes on each line.
- Balanced organic fertilizer (4-4-4 / 5-5-5)2 tbsp
- 1 tbsp
- Mycorrhizae inoculant At transplant.1 tbsp
Growing notes
- Never share a pot or bed — mint's runners will choke out everything around it.
- Keep consistently moist; mint wilts fast when dry.
- Trim often to prevent flowering (flavor drops once it bolts).
- Divide or repot yearly — it gets rootbound and woody.
- Tolerates more shade than most herbs.
Want to scale this to a different container size, save it to a plot plant, or track applied dates? Open it in the interactive calculator.
References
- Herb container guides: moisture-retentive, fertile mix; aggressive spreader best contained — University extension (multiple)
- Mentha thrives in moist soil; restrict roots to control spread — Royal Horticultural Society . RHS