Water new plants, at least, weekly. If we have a hot spell, you will need to water more often. Fertilize new plants when they begin to grow. I use a general fertilizer, whatever was on sale, for all of my garden except for my roses, where I use a systemic, and my acid loving plants, where I use a acid feeder. Layer or take softwood cuttings from established trees, shrubs, and vines.
Roses Fertilize monthly.
I prefer to use a systemic fertilizer. Deadhead faded flowers. I cut back to a five-part leaf that is growing in the direction that I want the rose cane to grow. Ground Covers Fertilize established groundcovers or top-dress with compost. Perennials Plant summer and fall bloomers.