Leopard plant 'The Rocket' in April: monthly care

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.

Watering is the single most important task with Ligularia 'The Rocket'. This is a moisture-loving perennial with high water needs, and the large leaves will visibly wilt if the soil dries out, especially in warm or sunny weather. Water deeply and regularly from spring through summer, increasing frequency during hot, dry spells—daily watering may be necessary in full sun. In partial shade and during cooler, wetter periods, you can ease off, but never let the soil dry out completely. Reduce watering in autumn as growth slows, and little is needed over winter when the plant is dormant. Feed in March, April, or May as new growth emerges. Apply a generous handful of general-purpose granular fertiliser such as blood, fish and bone around the base of the clump, or use a controlled-release fertiliser. Alternatively, mulch annually in early spring with a 5 cm layer of well-rotted manure or garden compost, which feeds the soil and helps lock in moisture. Avoid high-nitrogen feeds later in the season, as these promote soft growth vulnerable to slug damage. Slugs and snails are the main pests, particularly fond of the young spring foliage. Check regularly and use your preferred control method—hand-picking, traps, or organic pellets. Powdery mildew can occur on leaves in dry conditions, another reason to keep the soil moist. Ligularia is fully hardy in zones 4–8 and needs no winter protection; simply cut back dead growth in late autumn and apply a fresh mulch in early spring to suppress weeds and conserve moisture throughout the growing season.