Guess what time it is? It's time for the DG County Fair! Now in it's sixth year, enter your blue-ribbon photos or mouth-watering recipes for a chance to win a gift subscription! Click here here to get all the details, dates and entry rules.
I would go with the Osmocote; it is a time release fertilizer with balanced N P K. You will not be in danger of burning anything just follow the instructions.
You could also use a water soulable (Mircle Gro or Peters) to supplement every 10 days.
I've been using this regime for the past several years.