Honey fungus (Armillaria mellea)
Also known as: Bootlace fungus
Honey fungus, a parasitic fungus, targets the roots of numerous woody and perennial plants, leading to severe damage or even plant death. This fungus spreads underground and is recognized as the most destructive fungal disease in UK gardens. The emergence of mushrooms above ground indicates a widespread underground infection.
In This Article
Attributes of Honey fungus
Lifespan
Perennial
Plant Height
7 inches
Spread
5 inches
Leaf Color
N/A
Flower Size
N/A
Flower Color
N/A
Images of Honey fungus
Quickly Identify Honey fungus
1
Identify Armillaria mellea by its honey-colored caps, white spore print, and the presence of black shoestring-like rhizomorphs. The cap is convex, becoming flat with age, and the gills are white to creamy.
Scientific Classification of Honey fungus
Phylum
Club fungi
Class
Mushroom-forming fungi
Order
Gilled fungi
Family
Physalacriaceae
Genus
Honey fungi
Species
Honey fungus
Planting and Growing of Honey fungus
Care Difficulty
Hard
Watering Schedule
Every day
Sunlight Requirements
Full shade
Sunshine Duration
6-8 hours
Ideal Temperature
60-75℉
Soil Type
Potting Mix, Peat Mix
Soil pH
6.5-7.5
Fertilizer Type
Balanced
Pruning Season
Spring, Summer
Pruning Area
Branches, Leaves
Pruning Frequency
2 times a year
Repotting Season
Spring
Pot Type
Plastic, Ceramic
How to Water Honey fungus?
For Armillaria mellea, the watering should mimic moist woodland environments. Each session should provide around 500 ml of water, enough to keep the substrate consistently damp but not waterlogged. Ensure the water penetrates the soil, reaching the root zone but without pooling on the surface.
What are the symptoms of an underwatered Honey fungus?
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What should I do if my Honey fungus is not getting enough water?
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What are the symptoms of an overwatered Honey fungus?
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How to save an overwatered Honey fungus?
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What Are the Sunlight Requirements for Honey fungus?
Armillaria mellea flourishes in partial shade where light is available for two to four hours a day. This range supports its moist habitat and symbiotic functions without over-drying.
What is the ideal lighting condition for Armillaria mellea?
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How can you achieve ideal lighting for this plant?
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What benefits does ideal lighting provide to Armillaria mellea?
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What Is the Ideal Temperature Range for Honey fungus?
The ideal temperature range for Armillaria mellea, commonly known as the honey fungus, is between 60°F and 75°F. Within this range, the fungus is able to optimally grow and thrive, allowing for efficient decomposition and nutrient absorption from its environment. Maintaining these temperatures helps ensure the health and resilience of the fungus against pathogens and stresses.
What Soil is Best for Honey fungus?
Armillaria mellea thrives in soil that retains moisture well. The presence of loam or sandy loam helps to achieve this balance, ensuring that the roots do not dry out, which is crucial for its growth and overall health. This plant benefits from well-drained soils as they prevent waterlogging, which can be detrimental. Acting as a natural protector, this type of soil avoids root rot and allows for optimal nutrient absorption. Armillaria mellea utilizes the organic matter for nourishment. Rich, organic content in the soil provides necessary nutrients, fostering robust growth and vibrant fungi development.
How to Fertilize Honey fungus?
Armillaria mellea, commonly known as honey fungus, does not typically require conventional fertilizing in the way flowering or fruiting plants do. Instead, as a saprophytic organism, it derives nutrients from decaying organic matter. Thus, the 'fertilizer' for these fungi is essentially the media they grow on.
How to Prune Honey fungus?
Begin by carefully inspecting the plant for any visible signs of infection or decay. Armillaria mellea, also known as honey fungus, typically exhibits white mycelial growth or dark bootlaces on affected wood. Identify these areas to ensure precise and effective pruning. Before you start pruning, sterilize your tools with a solution of bleach and water. This step is critical in preventing the spread of fungal spores to healthy parts of the plant or nearby vegetation. Ensure all tools are thoroughly clean and ready for use. Use sharp pruning shears to carefully remove infected or dead wood. Trim back to healthy growth and dispose of the pruned material by burning or sealing in bags to prevent fungal spread. Make clean cuts to avoid further damage to the plant.
How to Propagate Honey fungus plant?
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Create a sterile growing medium by combining agar, appropriate nutrients, and hormones. The media should be poured into Petri dishes or culture tubes, ensuring sterility to facilitate proper plant tissue growth.
2
Select healthy root sections from an established plant and cut into segments with a sterile scalpel. Dip the bottom end in rooting hormone and prepare them for planting into a suitable medium.
3
Perform all tissue culture work inside a laminar flow hood or similar environment to maintain sterile conditions. Contamination can be detrimental to cultures and hinder successful propagation.
How to Repot Honey fungus plant?
1
Signs that Armillaria mellea needs repotting include roots growing out of the pot's drainage holes, visibly compacted soil, or it has been two to three years since the last repotting. These indicators suggest that the plant may require more space to allow for optimal growth. Spring or autumn are ideal times for repotting, as the plant is typically less stressed during these seasons and can establish itself more readily.
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Selecting the right pot for Armillaria mellea is crucial for its health. Opt for a pot that is one size larger than the current one, with adequate drainage holes to prevent waterlogging, which can lead to root rot. Options like terracotta or ceramic pots are recommended because they provide good aeration. A slightly larger pot allows the roots to expand without excess soil that retains too much moisture.
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For repotting Armillaria mellea, choose loamy, well-draining soil. This type of soil provides the necessary nutrients and prevents water accumulation around the roots. A mix of organic matter like compost or peat added to regular garden soil can enhance its texture and drainage capabilities, ensuring optimal growth conditions for this plant.
