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.
12 Ideas for bird bath planters - turn that broken bird bath into something wonderful! Concrete bird baths tend to crack from weather extremes but you can turn them into wonderful planters for flowers and succulents.