Plant Echinacea directly into well-prepared borders or larger pots and containers, spacing them at 15-20cm (6-8in) intervals. Water well after planting and while they are in active growth.
The seed heads are attractive, and are a valuable food source for birds during the cooler months, so avoid cutting them back (to just above soil level) until late winter. Over time, it will form larger clumps with more flowering stems, so they can be lifted and divided in autumn or spring to maintain vigour and flowering performance.
Taller cultivars in exposed locations will benefit from staking.