A mixture of sand, river silt, pine bark, and aged barnyard manure is ideal. Third, elevate the bed for good drainage. Soggy Click for a full size photo of Dr. Ross' butterfly garden. Please be patient while it downloads. For example, butterfly bush, butterfly weed, and lantana are guaranteed to magnetize any butterfly within the general vicinity.
Host plants encourage butterflies to remain within the garden.
Remember, however, that host plants will be heavily defoliated by the butterfly's caterpillar stage. Sixth, do not use chemical sprays within the garden. These chemicals not only kill indiscriminately, but discourage butterflies from visiting because of their harsh odors. But butterflies can and do learn. T hat's it.