I fertilize at the rates that Jack mentioned.

I, too, wonder why you're using such a low dose?

Josh

Hmm maybe I converted gallons to litres wrongly. I guess it should be more like 1/4 to 1/2 tsp per 2 litres?

Also, do you mean you take the tree out of the pot and just sit it in fertiliser/water for 1 hour?

Thanks for the responses guys!

Yes, 1/4 teaspoon per liter makes more sense. The only question then would be how often are you applying this amount of fertilizer. Once a week?

I think Jack means that he soaks the entire container in a bucket.

Josh

Must be a big bucket, probably won't be able to do that. Do you just pour it into the gritty mix really slowly?

I fertilise on average twice a week. I also put some slow release fert in there at the beginning.

water the trees first then fertilize at half strength once per week during the growing season is my method. Im stepping that up a little this year to try and push a lot of growth.

If you get a cheap plastic storage tote and fill with water and fertilizer solution you can just dip big pots in it for 20-30 minutes and soak up all the solution. That will ensure total coverage of the roots.