ninebark

Ninebark (Physocarpus opulifolius 'Seward' SUMMER WINE) should be watered regularly throughout the growing season. In spring and summer, water deeply about once a week, allowing the soil to dry out slightly between waterings. During periods of high heat or very dry conditions, more frequent watering may be necessary. In fall, reduce the frequency of watering to allow the plant to harden off and to get ready for winter.

Ninebark (Physocarpus opulifolius 'Seward' SUMMER WINE) is best grown in full sun for best bloom and foliage development. It prefers a minimum of 6-8 hours of direct sunlight each day. Abundant blooms occur in full sun, while too much shade will cause the plant to become leggy. For optimal growth, it is best to plant this species in an area that receives morning sun and afternoon shade.

Ninebark (Physocarpus opulifolius 'Seward' SUMMER WINE) should be pruned in the early spring just before new growth begins to appear. Pruning should involve removing 1/3 to 1/2 of the oldest, tallest stems each year. This will encourage new growth and improve the overall shape of the plant. Additionally, thin out the canopy by removing any crossing branches or branches that are growing toward the center of the shrub. Dead or diseased branches should also be removed to maintain a healthy plant. Pruning in the summer will also help shape and control the size of the shrub. However, as with all pruning, avoid cutting back your ninebark more than 1/3 of the total growth each growing season so that it has time to regenerate for the following season.