Porterweed is a small shrub that produces tiny blossoms, opening along uniquely-shaped, 4-sided stems, flowering and fading until reaching the very top. You are likely to find it growing in almost all butterfly habitats. In addition to butterflies, its nectar is highly attractive to hummingbirds. All of our Porterweed Plants for sale are shipped with very well-established root systems. We guarantee them to arrive alive and thriving.