Milkweed Plant Ideas for Monarch Caterpillars, Butterflies and Pollinators One of the best ways to see monarch butterflies is by enticing expectant mothers to lay eggs on your milkweed plants. There are over 100 species of milkweed in North America and these are some of the best ones for your butterfly garden. Try planting several … Continue reading 30 Milkweed Plants: List to Attract Monarchs and More