The Q&A Archives: Proper Soil Mixtures Is There A Correct Ratio?

Question: I made a mixture of 1/3 soil, 1/3 perlite and 1/3 peat moss,and my impatiece are dying. I have them in a feather weight pot that I drilled holes in the bottom. Could the peat moss be holding too much water?

Answer: It is possible, although the answer to your question would depend on the soil portion that you used. Garden soil is not usually appropriate for container plants, because it is heavy and often compacts very quickly. It also often holds diseases that may affect your plants. Some potting soils and bagged top soil are also very heavy. A typical soilless mix would be equal parts milled sphagnum peat moss, vermiculite and perlite. It is also possible that something else is happening to the plants, as in lack of hardening off or conditioning prior to being planted outdoors or excessive sun.

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