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BonsaiBoost, Organic Bonsai Fertilizer, retail pack

73 reviews
36 items left

We are giving away samples of our new product, SuperBoost fertilizer pellets; a unique organic blend of Blood meal, Bone meal, Canola meal, Fish meal, Fish hydrolysate. Macro, micro and trace minerals. Plant natural stimulating hormones, enzymes and amino acids. Get one (1) FREE pellet with every small packet of BonsaiBoost ordered.
Get four (4) FREE pellets with every bulk bag of BonsaiBoost ordered. *While sample stocks last.


For over a century, Japanese bonsai artists have used an organic fertilizer to provide the nutrients needed to keep their trees in perfect health year round.

BonsaiBoost is locally produced from high quality, pure canola meal, the same ingredient still used in Japan today. BonsaiBoost should be used on any bonsai or potted plant, from collected stock through to exhibition trees and on flowering, fruiting or evergreen trees.

Easy to use with no mixing required, BonsaiBoost sachets are laid on the surface around the bonsai and watered as normal. At each watering, a little of the nutrients in the sachet is carried to the roots. Sachets can be replaced every 2 - 3 weeks during the growing season.


  1. Time saver - every time you water you are fertilizing at the same time.
  2. Organic fertilizer which cannot burn your trees.
  3. Sustained, slow release of nutrients to your trees.
  4. Promotes healthy, strong growth.
  5. Easy to use and will not harm pets if accidentally ingested.

The above claims are guaranteed. If you are not 100% satisfied we will refund you in full.

Easy to use

BonsaiBoost is packaged in high quality filter paper to ensure water penetrates easily but without allowing the ground fertilizer to disappear into the soil mix.

To use simply place the BonsaiBoost bag onto the soil and secure in place with wire or a toothpick or if you don't like the look of the bags you can put them into fertilizer baskets like these. For maintenance of developed trees you will not need as much fertilizer as trees which are still being developed.

Replace the bags roughly every 2 - 3 weeks. When you first start using them they will omit an odour. This odour diminishes with time till eventually no smell is experienced. The ground canola cake will become a solid lump, this is normal.

While using BonsaiBoost little additional fertilizer is needed. A liquid fertilizer containing fish meal is recommended, like Seabrix or Seagro.

BonsaiBoost is the ideal fertilizer when using open growing mediums such as our Professional Bonsai Growing Medium and mixes made up from Akadama and Pumice (Hyuga).

100% Biodegradable

After using the bag for your preferred length of time don't simply throw it away. You can do the following:

  1. Make a small hole in your garden soil and bury the bag, it will completely degrade and add to the nutrients there too.
  2. Use it around your overpotted trees which are still undergoing development.
  3. Fertilize your field growing trees.
  4. Place into pot plant containers.

How many trees can I feed?

1 - 2 sachet for shohin trees, 3 - 6 sachet for Medium trees, 6 and more for Large bonsai trees


    Macro elements:

    53 N g/kg, 12 P g/kg, 14 K g/kg.

      Micro elements:

      7.9 Ca g/kg, 0.62 Mg mg/kg, 62 Mn mg/kg, 195 Fe mg/kg, 5 Cu mg/kg, 58 Zn mg/kg, 40 B mg/kg.
        Customer Reviews
        4.9 Based on 73 Reviews
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          Bonsai Tree BonsaiBoost, Organic Bonsai Fertilizer, retail pack Review

          Awesome product

          Super easy to use and well packaged. All my trees have never been happier.

          Shale T.
          South Africa South Africa

          Bonsai Tree

          Looks great Shale, thanks for sharing and posting the picture too!

          Bonsai Tree BonsaiBoost, Organic Bonsai Fertilizer, retail pack Review

          Bonsai Boost

          This product is unbelievably good. Little bonsais love these stuff and it works beautifully. No mess

          Tian V.
          South Africa South Africa

          Bonsai Tree

          Thanks so much for the feedback Tian, wait till you have to cut the bags off the surface because the roots have grown into them to get at the contents! :)

          Bonsai Tree BonsaiBoost, Organic Bonsai Fertilizer, retail pack ReviewBonsai Tree BonsaiBoost, Organic Bonsai Fertilizer, retail pack Review


          I've been using Bonsai Boost since January and can't believe the difference in my trees! I've used a few tea bags of Bonsai Boost on each of my trees over the last few months, as well as weekly fish emulsion treatment, and have noticed an incredible improvement in foliage colour, density, and growth vigor. I highly recommend Bonsai Boost! Below is my Serissa back on January 30th, 2 weeks into using Bonsai Boost. Looking back now it was very sickly and weak. Fast forward to the middle of April and the difference is unbelievable! It just won't stop flowering!

          Sean S.
          South Africa South Africa

          Teabag booster

          I purchased 2 bags of the BonsaiBoost Organic Bonsai Fertilizer for a slow feed solution to my small collection of bonsai plants. I usually feed them some liquid fish fertilizer once a month but felt they needed a slow release of nutrients in between monthly feedings without actually overfeeding them. These teabag style sachets are the perfect solution and despite the warning thereof, I don't find the smell off putting at all. Going forward I shall be using these teabags all the more often.

          Ashley M.
          South Africa South Africa

          Works like a charm!

          Works super well! My trees are very very happy!

          Mark D.
          South Africa South Africa