Heat Today will be hot in the south of the Netherlands: up to 30 degrees! Check whether your reservoir is still full, whether the mix is still moist, shade vulnerable plants around midday, and wait with sowing until it cools down.
Moss growing in your MM-Mix?
What should you do about it?
But do remove liverwort straight away. This type of moss is quite large and spreads very quickly. Before you know it, it can take over whole squares:
What to do?