Mushroom compost is a type of slow-release, organic plant fertiliser. The compost is made by mushroom growers using organic materials such as hay, straw, corn cobs and hulls, and poultry or horse manure.
Since the mushroom growing process varies slightly between individual growers, mushroom compost recipes may differ here and there. For instance, additional materials like gypsum, peat moss, lime, soybean meal, and various other organic items may be added to the compost as well.
Once the mushroom spawn are mixed into the compost, it is steam pasteurised to kill weed seeds and any other harmful agents. A mixed layer of sphagnum moss and lime is top dressed onto the top of the pile for the growth of mushrooms.
Mushroom composting takes about three to four weeks to process, during which it is monitored closely by mushroom growers to maintain adequate temperatures. After the process is complete, the leftover compost is disposed of and sold as fertiliser.
There are several uses for mushroom compost. It can be used as soil amendment for lawns, gardens, and container plants. Mushroom compost should be used with caution due to its high soluble salt levels and alkalinity.
These salt levels can kill germinating seeds, harm young seedlings, and cause damage to salt-sensitive plants, like azaleas and rhododendrons.
To temper the alkaline levels of mushroom compost, consider using aglime.
The beneficial uses of mushroom compost, however, far outweigh the downside of high salt levels.
At the moment, we have 20kg bags of the very popular Kashmiri pebbles in stock and they represent a fantastic way to get your smaller landscaping projects done quickly and with style.
We are halfway to November already and it's newsletter time again. We have specials on top dress soil to give your lawn some love, and hardwood mulch. We also have tips to grow veggies in pots, a yummy garlic butter recipe and we introduce our Trade Partner, Matt Lucas from Lucas Mob. Enjoy!
Sandstone is one of our absolute favourite products. It is incredibly versatile and you can be sure that it will stand the test of time no worries! And right now we have beautiful sandstone blocks and slabs on special.