I've used the Botanicare before, and it was good stuff.
Just do your best with the Nutes like Qwertywill said. If you tend to get a lot of rain where you're at, think about switching to just side dressing your plants in the future, it might be easier with the rain. You just add a few hand fulls around the plant every so often, and whenever you water, or it rains, the plant gets fed. Earth worm castings are great for this! Composted manure works good to, well before the plant starts flowering, if your real careful not to over do it, and keep it away from the stalk a bit.
Once your plant goes into flowering, Bat or Sea Bird guano is really good for giving her what she needs to make buds.
Nothing wrong with just using the Botanicare you've already got, though.