closeup of bees on bright purple sea holly - eryngium - on a sunny day in summer

closeup colorful bright bees eryngium blossom sea holly botanical wild close perennial prickly floral alpinum grass grasses blooms bumble wings honey bee fly garden plant flower thistle nature stem growth purple spikes bloom horticulture head petals flora botany gardening natural blue beautiful summer silveryblue insect spiked colour sunny day summer