In order to survive, your houseplants need two kinds of nourishment. We discussed one of these, water, in Part II of this series. They also need minerals. When a plant is outdoors, it can usually get enough minerals from its surroundings all by itself. But houseplants need more attention - the nutrients available to them indoors must be provided by the gardener.

What do those numbers on the fertilizer bag mean?

Fertilizers contain the key elements needed: Nitrogen (N), Phosphorus (P), and Potassium (K) in varying proportions. The numbers given on a bag of fertilizer show the relative amounts of these three elements. For example, an 18-6-12 fertilizer contains 18% N, 6% P2O5, and 12% K2O. Other elements are also necessary, but in much lower amounts.

How much of each mineral does my plant need?

This of course depends on what type of plant you are fertilizing. It is very important not to give your plant too much or too little food. This is a decision that must be made for each individual plant. You should carefully read both the label that came with your plant if there is one, and the label on the bag of fertilizer. If you’re still not sure, ask the person at the plant store for advice.

What does each of the elements do for my plant?

This is a subject of continuing research by scientists. To oversimplify a bit, we can say that leafy plants need lots of nitrogen, whereas flowering varieties require more phosphorus. Potassium is useful in combating plant diseases, and is also needed by fruit-bearing plants as an aid in transporting other minerals through plant tissue.

What are the symptoms of poor feeding?

Insufficient fertilization can cause the plant leaves to turn pale, or not to grow as large as they should. This can be remedied by using a fertilizer solution, so that the plant can absorb nutrients faster. If plants are over-fertilized, the leaves may wilt or begin to turn brown at the tips. In this case, you should thoroughly soak the plant in water to rinse the excess minerals away.

How and when do I apply fertilizer?

My method is to use a solution of dry fertilizer in water. Carefully following the directions on the package should make it easy not to over-fertilize your plants. I thoroughly water each plant, until the solution begins to flow out of the drain holes in the bottom of the pot. I find that feeding my plants about every other month is fine - more frequently for blooming plants in season.

If you use care in feeding your house plants, they will not only stay alive, they’ll become luxuriant. And don’t forget to ask for advice if you’re having difficulties. Your plant store should be happy to help a good customer.

Do you need more advice on tropical houseplant care? Visit the author’s website on tropical houseplants, where you can find help for your plants. I also have lots of beautiful photos, and some cool videos too. Grab a totally unique version of this article from the Uber Article Directory

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