@eb60f5fc 
It would be nice if you gave an indication in what corner of the world you are living and pursuing this project! 

 @47ce6ec1 It doesn't look like mulch, it looks like bark chips. Bark chips remove nitrogen from the soil, making it infertile. The round outgrowths are probably fungal bodies of fungi that existed in the bark. 
Anywhere you still want to plant something next year, I would spread a thin layer of calcium cyanamide in the winter (preferably on top of the snow) to restore the nutrient balance. 

 @b5cdaf1a Otto Hahn has got the Nobel prize for an invention of Lise Meitner. He didn't know what had happened during his experiment, so he sent the dates to Lise Meitner who wasin exile in Sweden at that time. She explained him, that a nuclear fission had taken place. He published it as his work and got the Nobel prize. 

 @47ce6ec1 yes 

 @47ce6ec1 Cold nights for sorts that need warmth 

 @e4573a06 This is not Cosmos but Japanese Autumn Anemone. 

 @88f809c5 Tomatoes in a greenhouse have to be shuttered reguarly. Professional tomatoe growers stretch thin wire from one inflorescence to another and attach electric toothbrushes to one end so that the plants vibrate. Several times a day for a few minutes.