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I have 0.5 liter bonsai liquid fertilizer that has outlived my bonsai. I have tried to give it away for free in my local Facebook plant groups, but as it seems no one is really into bonsai in my area. So I was wondering if I could use them on my regular houseplants.

These are the ingredients (NPK 3,8,5?):

  • N (3.0 m/v%)
  • P2O5 (7.8 m/v%)
  • K2O (5.1 m/v%)
  • Cu (0.002 m/v%)
  • Fe (0.02 m/v%)
  • Mn (0.01 m/v%)
  • Zn (0.002 m/v%)

These are the type of plants that I have:

  • Pothos
  • Chinese evergreens
  • Dracena
  • Monstera
  • Philodendron hederaceum (regular green and Brasil), Rojo congo and a Golden dragon.

Apart from these I have a ZZ plant, a Yucca, a Pandanus and an Aloe vera.


Which plants and how often could I fertilize during a growing season without worrying of over fertilizing or other problems?

My Pothos are still growing could I use the fertilizer on them during the winter?

Bence Kaulics
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1 Answers1

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The formulation of your bonsai fertiliser isn't much use to the type of plants you mention; they will require higher levels of nitrogen. For instance, Baby Bio is a good liquid houseplant fertiliser, and its NPK is roughly 10-4-7, so you can easily see the difference in the NPK value between that and your bonsai fertiliser. Whatever you decide to do with the fertiliser you have, I'm afraid I would not recommend it for your other houseplants.

Bamboo
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