Green mushrooms in your Norfolk pine's pot are unusual (most are yellow/brown) but still just saprophytic fungi breaking down organic matter in the soil. They don't harm the plant.
Fungus in soil = healthy microbial activity. No fungicide needed.
Money Tree Stem Fungus: Neem Oil and Watering Correction
White Fungus or Mineral Crust on Peace Lily Soil?
Eliminating Mushrooms and Mold on Jade Plant Soil
Orange Fungus on Seedling Soil: Beneficial Decomposers
Fungus Gnats on Indoor Hibiscus: Same Fix, Different Plant
Dealing with Yellow Mushrooms in Jade Plant Soil
Ficus benjamina Soil Fungus, Galls, and Leaf Beads: Mostly Harmless
Greenish Growth on Cherry and Lilac: Lichens Signaling Tree Stress
Toadstools and White Spores in Garden Border
White Fungus in Raised Beds: Symptom of Soil Compaction, Not the Cause
Removing Invasive Moss from Carnivorous Plant Pots: Repot or Scrape Top Layer
Tiny White Worms in Sarracenia Soil: Fungus Gnat Larvae
Lichens on Dogwood: Harmless but Check for Other Tree Issues
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