or other airy substrates rather than ordinary potting soil. They are therefore sensitive to the accumulation of fertilizer salts around their roots.
Too high a concentration can cause:
- Burned root tips
- Brown leaf tips
- Impaired root function
- Salt buildup in the growing medium
- A weaker plant instead of better flowering
The American Orchid Society therefore favors weak fertilization over strong single doses and points out that excessive fertilizer can cause root damage.
The Most Important Things That Make a Phalaenopsis Orchid Bloom
For the most common orchid type found in
