Quote:
Originally Posted by Willow87
I add coffee grounds whenever I can. Would this make up for the medium amount of Nitrogen?
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In terms of dried coffee grounds, you will need 4 times as much by weight for each amount of the 6-12-6 you add. You will also need a potash supplement.
Anyone adding coffee grounds to planting soil should check the pH often with an inexpensive pH probe. The best place to add coffee grounds is to a compost pile or a greenery recycling can for the city.
Quote:
Originally Posted by Willow87
Most of the fertilizers I saw had a high Nitrogen which I guess is good for the ornamental bananas like you said.
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Actually, it is not what I said -- you are overlooking the potash content. For ornamental bananas you would like a relative N-P-K that is High-Low-
Medium. Any complete fertilizers with N-P-K close to these would be great for ornamental bananas:
5-1-3
9-3-6
20-10-15
28-8-18
30-10-20