spirea

Water Spirea (Spiraea trilobata 'Swan Lake') regularly to keep it healthy and blooming. During the first year, water deeply and frequently (about every 3 days) to help the roots establish. Once established, water weekly, allowing the top inch of soil to dry out between waterings. Keep an eye out for drought stress such as wilting leaves and make sure the soil doesn't get waterlogged. Water in the morning so the plant has time to dry out and the foliage remains dry through night for best disease prevention.

Spirea (Spiraea trilobata 'Swan Lake') plants prefer 6 to 8 hours of full sun per day. They can tolerate partial shade but may not flower well in those conditions. For best results, they should be placed in a spot where they’ll receive full sun in the morning, with partial shade in the late afternoon. This will help keep them from wilting in the strong summer heat. If possible, the location should also provide some protection from strong winds. Spirea plants will also do well in bright indoor light, and can be a good choice for an indoor plant.

When to prune Spirea 'Swan Lake' depends on the goal you are trying to achieve. For general maintenance, pruning is best done in spring after the shrub has flowered, so that you don't accidentally remove buds that would produce flowers later. Spirea tends to be a naturally vigorous grower, so you should prune it lightly, removing only a few of the oldest stems back to their base. If the shrub is overly large, you can selectively prune back up to about 25% of mature branches within the established framework. If you do this in early summer, the plants will have time to produce new growth and harden off by winter. If you need to remove more stems to reduce the size of the plant, or rejuvenate an older 1, wait until late winter and make the cuts back to about 4- 6 inches above ground level.