Family: Rosaceae

Scientific Name: Spiraea japonica Neon Flash

Common Name: Spirea Neon Flash

DescriptionAn improved version of the old standby Anthony Waterer Spirea. I think it has some of the dark pink flowers of these types of Spireas.
Pronunciation(spy-REE-a)
Plant TypeAll Plants, Shrubs Deciduous
Hardiness Zone4-8
Sunlightprefers full sun, tolerates some shade but flower production is reduced
Moistureaverage
Soil & Siteaverage
Flowersflat topped deep rose red to red flowers
LeavesThe new growth is reddish turning to dark green. Seems to be no variegation in this shrub.
Dimensions3-4 feet tall by equal spread
MaintenanceAll of the Spirea x bumalda and japonica group needs to be pruned back on a yearly or every other year cycle. If not they will become scraggly, and flower production will decrease. There are two good methods of pruning these. First is cutting the shrub flush with the ground. This is a good no brainier method and the plant will quickly recover with fresh, new growth. This method will set the flowering back, since the shrub has to totally regrow. Another method is using pruning shears, cut the shrub back about ½ in a shape that will resemble the natural form of the shrub and remove the old gnarly stems from the shrub. Flowering isn’t delayed as long as in the previous method. The earlier in the spring this is done, the sooner the plant will flower. One of my clients has me prune back these shrubs each year, since she likes the fresh, new growth of the shrub. Removal of the dead flower heads can result in a minor rebloom
Propagationcuttings
Cultivar OriginIntroduced by Brookside gardens, Wheaton, Md (USA) to the United States from Japan.
Author's NotesI have used this shrub in dozens of landscapes and the color and number of flowers is a definite improvement over older cultivars.
Notes & Reference#01-Manual of Woody Landscape Plants (Michael Dirr)
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