I use Omocote-Plus for everything at the rate of about 1/2 teaspoon per pot gallon every six months. By 'everything' I mean, junipers, pines, spruces, tsugas, thujas, pseudotsugas, maples, zanthoxylem, katsura, maple, birch, elm, oak, ash, azalea, rhododendron, ash, cotoneaster, pyracantha, quince, crabapple, cherry, horse chestnut, euonymus, nothofagus, peony, rose, camellia, pieris. I currently have a yellow needle issue with a pinus strobus 'minima' that might be from a fertilizer issue that has been years in the making. I also lost a trifoliate orange after three years that e perpetually looked chlorotic in spring and never really thrived. My choice of fertilizer may have played a role, I suppose. At any rate, you don't need anything special for junipers, IMHO. Any ole balanced fertilizer will do. Organic ferts are fine as well, but come with an additional set of things to which you must also attend.