The earthworm castings are a perfect pH for all plants at any age. The earthworm castings contain humic acid and natural growth hormones that help with fertility, seed germination, and can reduce transplant stress. Many nurseries add our earthworm castings into the planting hole to help protect the roots and increase survival rates.
VermisTerra tea should not be used on seeds. You can condition the soil with the tea, and plant the seeds in after a week. Feed VermisTerra tea after seeds have germinated and grown their first leaf. Start with a lower ratio for young seedlings (about half the normal rate).