Ninebark 'Diabolo'

‘Diabolo’ Ninebark (Physocarpus opulifolius ‘Diabolo’). ‘Diabolo’ Ninebark, also known as ‘Diabolo’ Physocarpus, is a deciduous ornamental shrub with a wide, dense, and vigorous habit, recognized for its dark purple, almost black foliage that maintains its intensity all summer in full sun. Highly structural, it forms an imposing mass ideal for informal hedges, privacy screens, or as a contrasting mass in beds with light foliage. In spring, corymbs of pinkish-white flowers appear, highlighting the dark foliage, followed by small decorative dark red fruits in late summer.

To plant ‘Diabolo’ Ninebark, choose an appropriate exposure: sun to partial shade. The recommended soil is well-drained and tolerant of various soil types. Water the root ball before planting and ensure water can drain after planting. During establishment, check the soil moisture by hand before watering again. Spread mulch around the base, leaving the crown clear. Avoid systematic fertilizer applications without considering the soil's richness. In Quebec, choose a period when the soil is thawed and easy to work with.

Allow for a width of 2 m (6.5 ft) to organize this plant's space in the garden. The indicated height of 2 m (6.5 ft) helps choose its position relative to neighboring plants. Keep access to the base for weeding, checking moisture, and removing damaged parts. Pair this variety with plants whose light and water needs are compatible. If you are considering a container, first check that its volume and drainage are suitable for root development. Roots in pots are more exposed to cold than those planted in the ground.