Sue Sanderson

Sue Sanderson – our horticulturist expert


Sue Says
Assuming that white cap mushrooms are being grown this iq quite normal. This species of mushroom can be grown in a mushroom box or bed. The mushroom bed or box should be tightly packed with prepared compost and the spawn scattered across the surface, before covering with damp newspaper. After 3 weeks, the compost will be colonised by mycelium. Having reached this stage prepare a casing mix. This is mixed from 50% garden soil, 50% peat, and 2 or 3 handfuls of lime per bucket of casing mix. Before you use the casing mix it must be thoroughly wetted and allowed to drain. Remove the newspaper from your mushroom box and cover the compost with a 2.5cm (1”) layer of casing mix. Thereafter keep the compost and casing evenly moist (but not wet) by watering with a fine rose watering can. Mushrooms will begin to develop 3 to 5 weeks after adding the casing layer. Maintain a moist, humid atmosphere as the mushrooms develop. They will grow in flushes every 10 days or so. You can harvest the mushrooms by simply twisting the cap until it comes away from the compost.

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