Ageratum Conyzoides is an easy to grow annual flower that is native to Tropical America. This plant is tall, willowy and will attract butterflies to your garden. It is also known as the “Tall Blue Planet” due to its vibrant blue circular spikes that appear to be suspended on long sturdy stems. Ageratum is full sun, drought tolerant and will make an excellent addition to any cut floral bouquet. Start seeds indoors 6 – 8 weeks before the last frost in your region, then simply transplant after danger of frost.