Place bulbs shoulder to shoulder across the surface of the soil, leaving no space between them. Then top off with more potting soil so the bulbs are just slightly below the surface. Water each container thoroughly, and finish with a layer of mulch.
1 Salvia nemorosa from the mildly aromatic silvery green leaves to the violet flower spikes with purple stems. Bees love the flowers that stay looking sharp long after the petals fall, thanks to papery bracts that hold their colour.
Vinca -(myrtle) part to full shade Enjoy vincas colorful blooms from spring through fall. The blue, purple, or white flowers provide a colorful accent to the shiny, green foliage. This easy, adaptable groundcover tolerates a wide range of soil conditions.