Prithvi

Can't find the fertilizer for Tehrorman quest. Have killed the end boss in the grove, also found the seed and planted it but there is no fertilizer. I earlier missed one of the pots in a room which now gives me a text popup saying the "the vat contains a layer of rich dry soil", but gives me no option to take it or do anything. Is this a bug? I also went back to the tranquility path post clearing Tehrorman and the druid came to Tehrorman later with the instructions, but it does nothing now after I speak to her. This is driving me nuts, I have gone all over the map looking for the fertilizer but can't find it. Edit: Never mind, figured it out, needs that key to unlock one of the rooms that I missed out.