The Q&A Archives: Bean Plants In Potting Soil

Question: I am doing a science fair experiment on seeing how bean plants grow in three different types of soil- top soil, potting soil, and sand. I planted my seeds about two weeks ago and only two out of forty-eight plants have sprouted in the potting soil. I have noticed that there is a white, fuzzy substance over where each seed is located in the potting soil. After pushing aside the dirt, I saw that there is a very soft white patch that was the seed. Do you know anything about this white, fuzzy substance that I thought was mold or if the plants are going to grow?

Answer: Based on your description it sounds like the fuzzy white growth could be a mold or fungal infection. Seeds will rot in overly cold or overly wet or overly cold and wet soil. Planting too deeply or compacting the soil too hard can contribute to poor germination also. Unfortunately, once rotten through, they will not grow.

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