false spiraea

False spiraea should be watered when the top 2 inches of soil is dry. Water thoroughly, allowing the excess to drain off. Avoid frequent shallow watering as this encourages the development of shallow root systems. During hot weather, water may be needed daily. During cooler weather, water once a week or so, allowing the soil to dry out partially between waterings.

False spiraea (Sorbaria sorbifolia 'Sem') is a deciduous shrub that prefers a full sun location with at least 6 hours of daily sunlight. They can tolerate partial shade, but the best blooming is achieved when they are grown in a location that gets full sun during the peak hours of the day (usually between 8am-5pm). False spiraea can also handle some direct sunlight in the late afternoon, but avoid positioning them in areas where they are getting direct sun for the entire day. Too much direct sunlight can burn the foliage, causing it to lose its color and turn yellow.

For false spiraea (Sorbaria sorbifolia 'Sem'), pruning is recommended in the early spring before new growth begins. Pruning should be done lightly, removing only a few of the oldest branches closest to the ground. Pruning will help to maintain the structure of the plant, encourage flowering, and prevent it from becoming overgrown or leggy. Depending on how dense the shrub is, at least 25-30% of the plant's oldest growth should be removed each year. It is also important to remove dead or diseased branches from the plant to keep it healthy.