Insecticidal soap When insecticidal soap is sprayed onto a plants foliage, it comes into contact with the pest and kills it. For this tool to be effective insecticidal soaps must be applied Echinacea purpurea The Gardener's Complete Guide to Starting Seeds Indoors Sow True Seed Common Columbine seeds Lets collect the seeds of the Common Columbine and sow them into new areas of the garden, so we get even more of these wonderful flowers next year #commoncolumbine