Fertilizing Seedlings Home › Forums › Edible-Garden Questions › Vegetables & Herbs › Fertilizing Seedlings This topic contains 2 replies, has 3 voices, and was last updated by Anonymous 6 years, 1 month ago. Viewing 3 posts - 1 through 3 (of 3 total) Author Posts March 12, 2011 at 3:43 pm #29125 Anonymous I’ve got some seedlings started under lights and I’m not sure what to fertilize with. Or when…… I used to use Roots Plus but can’t get it anymore. My seedlings are vegetable and annual flowers. March 13, 2011 at 2:51 am #29646 Anonymous I have always used diluted fish emulsion for my seedlings and I start applying it when the first true leaves appear. March 13, 2011 at 3:41 am #29647 Anonymous I’ve been using Worm Tea made from casings from my worm bin- applying it when the first true leaves appear. Seems to be working well so far. Author Posts Viewing 3 posts - 1 through 3 (of 3 total) You must be logged in to reply to this topic.