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ENH1034: New Hydrangeas for North and Central Florida: Bigleaf and Mountain Hydrangeas

Figure 1. Most bigleaf hydrangea flower heads are blue in the presence of aluminum ions in soil (typically acid soils), pink in the absence of aluminum (typically alkaline soils) or purple in neutral soils. This shows the mophead flower types in blue (Figure 1a 'Bailmer' Endless Summer®) and pink (Figure 1b 'Penny Mac') as well as the lacecap flower type in purple (Figure 1c 'Miyama-yae-Murasaki').