Spiraea japonica, a indigenous to China and Japan, is an ideal option for gardens and several California yards. It adapts to various growing conditions and offers a show of colourful flower clusters in Sunset zones A2, A3, 2-10, 14-21 and 3241. Plant a shrub that is solitary or set a row of shrubs as an informal hedge or border planting out. Newly created types that are tiny also make excellent container plants. Spiraea japonica grows in partial shade or full sunlight. It it takes only average dampness — mulch helps to to save water — and once the root system is is set up, the shrub is fairly drought-tolerant. Regular, easy pruning throughout winter supports the magnificent blooming capacity of the shrub and rejuvenates Spiraea japonica.
Mix nine parts water with one-part liquid chlorine bleach in a bucket. Dip the cutting blades of your resources to the the answer before and between pruning cuts to disinfect the blades, as you prune to prevent spreading plant ailments. Before using it, rinse the blades in a bucket of water subsequent to the bleach solution.
Cut back Spiraea japonica branches significantly throughout winter dormancy to inspire rejuvenation. Donât be scared to prune neglected, overgrown shrubs as near as 6″ in the ground — the ensuing new development will create plenty of new branches from nodes on the remaining stumps at the same time as in the ground-level crown of the plant. Spiraea japonica flowers produce on new development each summer.
Prune less seriously, if preferred, by by eliminating as much as half of the dormant plantâs branches. Prune uniformly on the the top of shrub to create spaced great flower protection and branches in the summer. This method reshapes a specimen while supporting the shrub generate new shoots to carry the summerâs blossoms.
Trim branches that are 1/2 inch or smaller with hand pruners. Long-handled loppers perform best for bigger branches up to 2″ in diameter. Rake up the branches that are pruned, and dump these them pile.
Trim ugly invested flowers anytime throughout the growing period to keep the shrub searching its greatest. As the flowers fade, simply snip off them and dispose of these.