Hydrangea 'Pink Diamond' (Hydrangea paniculata) - garden hydrangea - 17 cm pot - Height 50 cm

Yes, the Pink Diamond panicle hydrangea (Hydrangea paniculata 'Pink Diamond') is one of the hardiest hydrangeas there is. It withstands temperatures down to around -25°C without protection, making it suitable for almost all of France, including continental regions and moderate-altitude mountain areas. Its wood hardens well in late summer and withstands deep frosts without damage to the stems.

The best time to prune the 'Pink Diamond panicle hydrangea is in late 'winter, between mid-February and early March, before the buds awaken. Cut the stems from the 'previous year back by half to two-thirds, always cutting just above a 'well-swollen pair of buds. This short, clean cut is the secret to achieving large panicles: the more severely you prune, the more vigorous the replacement stems and the more spectacular the flower clusters.

The Pink Diamond panicle hydrangea (Hydrangea paniculata) tolerates a wide range of exposures, from full sun to partial shade. In full sun, the panicles are larger, denser, and the color change to deep pink is more spectacular in late summer. In partial shade, the flowering remains beautiful but slightly less abundant, and the flowers last a little longer without drying out. In southern regions with very hot and dry summers, afternoon partial shade is recommended to prevent the foliage and flowers from suffering from the heat.

Yes, P'ink Diamond panicle hydrangea grows very well in a pot on a patio or balcony, provided you choose a large enough container. Opt for a pot at'least 40 cm in diameter and 40 cm deep, with good drainage at the bottom. Use a high-quality, slightly acidic potting mix, and water more frequently than'when planted in the ground, as pots dry out quickly in summer. A feed of'fertilizer for flowering shrubs in spring, and then in early'summer, will maintain generous flowering.

P'Hydrangea paniculata Pink Diamond blooms from July to September, a particularly long flowering period of'about two to three months in the height of the season. The conical panicles appear'initially creamy white to slightly greenish-white, then gradually take on'an increasingly deep pink hue as'summer progresses. At the end of the flowering season, in September and October, the flower heads take on dried pink to whitish tones that persist on the'shrub all'through the winter, providing remarkable decorative interest even in the snow.

At maturity, t'Hortensia paniculé Pink Diamond generally reaches 1.5 to 2 meters in height with a similar spread, depending on growing conditions and the vigor of annual pruning. Its growth is rapid: it can gain 30 to 50 cm per year in good conditions. A short pruning carried out every year at the end of w'inter allows to maintain t'he shrub in controlled dimensions and to promote large panicles. Without pruning, t'he shrub tends t'spread out and to produce many small inflorescences.

T'Hydrangea paniculata Pink Diamond is far less demanding about soil type than bigleaf hydrangeas: it 'adapts to most ordinary garden soils, from slightly acidic to neutral. However, it prefers soil that is fresh, loose, well-drained, and enriched with organic matter. Heavy, clay soils can be suitable 'as long as they do not retain 'excess water in winter. Very alkaline and dry soils are the only ones that really cause problems: they lead to chlorosis (yellowing of the leaves between the veins) and stunt growth.