Removing Green Algae on Seed Starting Mix . Help! Every year I have the same problem when I start my seeds. The algae itself won't hurt your seedlings, but it could cause problems if you allow it to keep growing. Both moss and algae grow in soil that is always moist. Such conditions promote the growth of these minute plants on your soil. There are more than a hundred thousand types of mold — and thousands of species of green mold, according to Neil Kao, MD, an allergist in private practice in Greenville and Spartanburg, South Carolina. 14 years ago. How to Prevent Mold From Growing in Soil. I'm new here and have a question I hope someone can help me with. Mold, a species of fungus, grows in moist, humid locations. Algae Growing on My Soil. The more common species usually belong to three genuses of fungi: Cladosporium, Aspergillus and Penicillium.There are health hazards associated with the spread of green mold in areas frequented by people, and much like other mold variants, if the mold manages to … As the soil dries out, both moss and algae will start to die out. Arid gardens seldom experience mold and mildew, while gardens in humid climates harbor various types mold. You can attempt to remove the infested soil and place it in a composting pile, but if you remove too much soil you can damage your plants. So what does the color green tell you? The green material on the soil surface could be moss or algae. The real threats to your plant are heat, humidity, and low ventilation. Cladosporium is olive green and thrives on plants in particular, but can also grow on household surfaces like walls, cabinets, and carpets. Although many species of mold can grow green, the most common are Cladosporium, Aspergillus, and Penicillium. A common cause of mold growth is over watering. The signs are unmistakable — a bloom of pink, green or even brownish sticky material sprawling across the surface of the soil. Green mold is an umbrella term that refers to a number of species of fungus with spores that take on a green tint. The truth is that mold spores are a regular part of soil and are normally harmless. Not much. i_love_flowers. Under these conditions, mold spores grow into their adult fungi form and release even more spores. Green. Mold can grow abundantly on the top of plant soil. If the layer appears as a somewhat thickened matt, it could be moss. Wear protective gloves and a dusk mask to prevent contact with the mold. Algae growth on seed starting mix is common in cases where the site is moist and muggy. Kill mold in soil by flushing the soil with antifungal neem oil. Sooty mold. I get this green mold or fungus like stuff that sometimes gets slimy, on top of my soil… If the layer is thin, then it may be algae. Many types of mold affect fresh garden vegetables growing in the soil. You can also use a garden shovel or spade to mix the soil, killing the mold and fungus. These tiny insects can suck the life out of your plant as they feed on the plant’s sap. If the mulch has already been mixed in with your garden soil, removal is more difficult. However, green mold can also grow in wet areas of a home. Moldy vegetables often exist beyond the confines of untidy refrigerators. To clear up any green algae growing on your seed starting mix, lightly cultivate the surface of the soil with a small tool, such as a chopstick or pencil.This simply breaks up the layer of algae. Insufficient air flow and high humidity also aid in the production of mold, which poses a danger to plants and humans, so use caution when attempting to remove it. green fungus/mold on soil. Mold can never be totally eliminated. If you see green mold, it could be just about any type of unwelcome fungus. Patches of black or dark green soot-like substances could be a sign of scale.