When to plant Leopard plant 'The Rocket'?

Ligularia 'The Rocket' thrives in partial shade or full sun, though in sunnier spots it demands consistently moist soil to prevent wilting. Choose a sheltered position away from strong winds, as the tall flower spikes and large leaves can be damaged by exposure. The plant performs best in heavy, moisture-retentive soils—loam or clay are ideal—so avoid dry, sandy ground. Plant from March to May or in September and October when the soil is workable and temperatures are mild. Prepare the site by digging in plenty of organic matter such as well-rotted manure or garden compost to improve moisture retention and fertility. Dig a planting hole roughly twice the width of the root ball and deep enough so the crown sits level with the surrounding soil surface. Space plants 75 cm apart to allow for their mature spread of 60–90 cm. After planting, firm the soil gently around the roots to eliminate air pockets, then water thoroughly to settle the plant in. Apply a 5–8 cm layer of organic mulch such as composted bark or leaf mould around the base, keeping it clear of the crown itself. This mulch will help retain moisture—critical for ligularia—and suppress weeds. In the first growing season, water regularly and generously, especially during dry spells, as establishing a strong root system depends on consistent moisture. If planting in full sun, be prepared to water even more frequently during summer. Staking is rarely necessary despite the height, provided the site is reasonably sheltered, but have canes ready if your garden is exposed.