Crystal Candy XL Auto Outdoor

Start of Week 4th, they are about 2 weeks already outside. Week 3rd was excellent, sunny and warm days, they went really nice.💚But last few days is really rainy and not so warm especially at night.😏 I’m putting over them nonwowen and it seems to do them well (before now I was putting it over only for night and now I’m trying to keep them under all-time. Last few days I didn’t water them, cuz it rains here daily. Until now I haven’t add any fertilizers (I’m a bit afraid of that), I have a soil from my friend, who has growing in that a champignons for years, so it’s organic and it contain mycorrhizae, but this year I’m growing in it for the first time, so I don’t know very much, how to work with it. They are in 15l Tex-pots (it have to be their final). Average temperature is around: Day: 12-15 degree Celsius Night: 5-10 degree Celsius Any advices? Let me know, i would be really grateful!