I have had a gold fruit palm in my apartment for over a year now, and it has always been happy and healthy. Recently I have begun fertilising it once a week or so with a (German) liquid palm fertiliser, carefully following the instructions.
A week or so after I started (give or take), white granules appeared at the tips of most of the leaves (see photos). When I brush it off, it feels like salt (i.e., like tiny crystals).
Does anyone know:
- What it is?
- What is causing it?
Is it possible to over-fertilising a potted house palm? Attempting to translate, the ingredients of the fertiliser are:
- 2.6% Nitrate
- 2.6% Ammonium
- 1.8% Carbamide/urea (CO(NH2)2)
- 3.0% Phosphate (P2O5)
- 5.0% K2O