Notice your succulent stem is turning black and dying off. Stem rot is caused by several factors, including temperature fluctuations, water deprivation, and over-fertilization. Fluffy grey or white mould on the stems: This may be caused by Sclerotinia or grey mould ( Botrytis cinerea). One possibility is that the plant is experiencing stem rot, a fungus that can cause the stem to turn black and decay.See the link below for further details on Verticillium wilt. Wilting with staining inside the stem: This may be caused by the diseases Verticillium wilt and Fusarium wilt.Brown patches on the stems: Tomato blight can cause brown patches and decay on both the stems and leaves.Affected plants can wilt and die, and should be removed immediately to prevent infection of the remaining plants. Dead, rotten patches on the stems: A disease called Didymella stem rot (caused by the fungus Didymella lycopersici) can attack the stems of tomatoes causing brown, rotted patches, at any height but most often at the stem base.Tomatoes produce roots from their stem very easily, and this is usually no cause for concern. Lumps and outgrowths on the stem, usually near the bottom: These are likely to be root initials, which often cause alarm to gardeners, but are in fact harmless. Remove any standing water from the saucer or tray beneath the plant, and consider repotting the plant in fresh, well-draining soil.RHS Garden Rosemoor Flower Show - Dates TBC.RHS Botanical Art and Photography Show - TBC July 2024.They can be grown in soil or water, making them a favourite among homeowners. Money plants, also known as devil’s ivy, are popular houseplants for their ease of growth and low maintenance. This occurs when the plant is kept in stagnant water for too long. RHS Flower Show Tatton Park - 17-21 July 2024 The stem of a money plant might turn black in water due to lack of oxygen.RHS Hampton Court Palace Garden Festival - 2–7 July 2024.RHS Garden Wisley Flower Show - 5–10 September 2023.
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