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6 paź 2024 · For later flowering species, such as Japanese spirea (Spiraea japonica), significant pruning in late winter or early spring, just before new growth emerges, works well. Pruning these shrubs after flowering finishes in late summer or fall stimulates new growth.
27 sie 2021 · Plant spiraea when dormant, in garden borders. Mulch and feed annually and prune, if necessary, after flowering. Mature overgrown spiraeas can be rejuvenated by selective renovation pruning. Propagate spiraeas by cuttings in mid to late summer.
16 lip 2024 · The best time to prune your spirea japonica is typically in late winter or early spring before new growth begins. This timing allows for the removal of dead or damaged parts and encourages vigorous new growth.
13 wrz 2021 · Spirea pruning not only rejuvenates the plant and encourages blooming, but it also helps to restrain the size of the shrub. Also, trimming spirea back, in many cases, will induce a second bloom. Other varieties of spirea, such as Japanese spirea, respond better to pruning in the late winter months.
12 lip 2023 · When to prune spirea. 'Pruning once a year will greatly improve the overall health of the shrub,' says Anna. However, the right time to do so depends on the type of plant you have. Summer-blooming varieties, such as 'Anthony Waterer' or 'Goldflame', bloom on new wood (the current season's growth), Brock says.
Pruning. Pruning group 6 for spiraea flowering on current years stems, deadhead after flowering. Keep neat and compact by cutting all stems back to within 30cm of ground level. Pests. Generally pest-free. Diseases. Generally disease-free but may be susceptible to Powdery mildews
