Morning Sam. I too love astrantias. I would buy the plants..you have a plant for next year then. Choose the variety you want. I have one called Jumble Hole which is a superb white but there are now crimson, purple, pink, etc. I also grow Sunningdale Variegated which has wonderful foliage. Careful, Astrantias can be addictive ! Good soil, some moisture but they will not grow in dry soils as I have learned over the years