The flower structure of panicle hydrangeas (botanically Hydrangea paniculata) is very different from all other species. Here the flowers are arranged in elongated panicles, similar to perennial phlox.
When do panicle hydrangeas bloom?
The flowering time of panicle hydrangeas varies depending on the variety. The earliest variety, 'Dharuma', blooms from May to June, while other varieties such as 'Limelight', 'Kyushu' or 'Vanille Fraise' bloom mainly from July to September. Some varieties even bloom until October.
Average flowering time of the different varieties
The different varieties of panicle hydrangea bloom quite differently, many even from August onwards. However, there is an early-blooming exception: the dwarf hydrangea “Dharuma” shows its creamy white flowers in May and June. The table below provides you with an overview of the flowering times of the individual varieties.
| Variety | Flowering time | Growth height | Growth width |
|---|---|---|---|
| Dharuma | May to June | 50cm | 80cm |
| Great Star | July to September | 200cm | 150cm |
| Grandiflora | July to September | 200cm | 250cm |
| Kyushu | July to September | 300cm | 300cm |
| Limelight | July to August | 200cm | 200cm |
| Phantom | August to October | 120cm | 150cm |
| Praecox | June to August | 200cm | 200cm |
| Pinky Winky | August to September | 200cm | 150cm |
| Silver Dollar | August to September | 150cm | 200cm |
| Tardiva | August to October | 250cm | 350cm |
| Unique | July to September | 200cm | 300cm |
| Vanilla Fraise | August to September | 200cm | 150cm |
| Wim’s Red | August to September | 150cm | 150cm |
Tips & Tricks
Pranicle hydrangeas bloom on annual wood and can therefore be cut back heavily in spring.
