When to plant Purple coneflower 'Magnus'?

Echinacea purpurea 'Magnus' thrives in full sun but tolerates partial shade, though flowering may be less prolific in shadier spots. It adapts to a wide range of soil types—loam, sandy soil, and even clay—provided drainage is reasonable. Heavy clay benefits from the addition of grit or well-rotted compost to improve structure and prevent waterlogging, which can rot the crown. Plant container-grown specimens in March, April, May, September, or October. Avoid planting during summer heat or when the ground is frozen or waterlogged. Dig a hole slightly wider than the root ball and to the same depth, so the crown sits level with the surrounding soil surface. Planting too deep encourages rot. Space plants 45 cm apart to allow for their mature spread of 40–50 cm and to ensure good air circulation, which helps prevent mildew. Backfill with the excavated soil, firming gently to eliminate air pockets, then water thoroughly to settle the roots. A 5 cm layer of well-rotted compost or bark mulch around the base helps retain moisture and suppress weeds, but keep mulch a few centimetres clear of the crown itself to reduce the risk of fungal problems. If planting in autumn, the roots will establish over winter ready for strong growth in spring. Spring plantings need more attention to watering during their first summer. Echinaceas are deep-rooted once established, so initial watering is important to encourage roots to grow downward. Staking is rarely necessary for 'Magnus', which has sturdy stems, but in very exposed or windy sites a single cane may help support young plants in their first season.