Marigolds, basil and clover planted around outdoor indica seedlings are not magic, but they attract predatory insects, shade the soil and give slugs something else to chew on first. Clover in particular fixes nitrogen and keeps the bed covered, though it needs cutting back so it does not smother a young plant. A list of companions that members found useful, and a few that competed too hard for water, is kept on Indica Seeds for Sale — 500+ Strains, 7–9 Week Flowering in the outdoor section. Keep a bare ring around the stem for the first month regardless.