Echinops (S)
Hardy in Zones 4-9
Echinops ritro
Prefers full sun and well-drained soil that is low to moderately fertile. In rich, fertile, moisture-retentive soil, it will grow lushly and require staking. Cut off the blooms early in the season to promote a second blush of bloom. Space plants 18"-24" apart with the growing tips just under the soil surface. Do not divide or transplant if possible.
