Wildflowers are my favorite kind of gardening. You plant once, they bloom, they drop seed, and if conditions are right, they come back year after year with even more flowers. We've had Let's Explore a Food Forest Plus 3 Tips to Get Started Yellow filaments like golden strands of egg yolk at the top of the green plant they are parasitic Premium Photo Dierama pulcherrimum Swan Addenbrooke Plants are sensitive to various environmental factors, including changes in light, sound, temperature, and even vibrations. While they don't have a nervous system to sense emotions or brainwaves, some PlantFiles Pictures: Giant Asparagus (Asparagus horridus< i>) by Zaragoza