Yellow, yellow and more yellow wave petunias
Hi there I have trying to grow some petunias from seed and after I transplant them they seem to be turning yellow. I have read a lot of the FAQ's but still don't know what is wrong. When I transplant them into 4 inch pots I give them a good feeding from the bottom with 10-52-10 fertilizer. That is what a local greenhouse told me to do. I do use full strength. I use what it says on container which is 5 mills per liter of water. So I use 20 mills to a ice-cream pail of water. Thinking a ice-cream pail is about 4 litres. I use we'll water and my ph is about 7.6 and the water is hard water. My impatiense are fine but my petunias are turning yellow fast. Are they going to die? Or can I save them somehow. I don't think I am overwatering but anything is possible. Should I dilute fertilizer and just do half strength or totally different fertilizer?