EastScape Wikibuilt from the game itself
Blue mould spawn
“Plant it in a fungus bed in your cellar (Fungiculture 28) with 1 compost. It grows blue mould, and gives spawn back.”
How to get it
- Scraped up with the shroom 35% of the times you pick wild Blue mould (Fungiculture 28), and given back by every bed you harvest.
Grows
Plant it in a fungus bed in your cellar (Fungiculture 28, 1 compost): grows 
Blue mould in about 60 minutes, and gives spawn back.