Description
USDA Hardiness Zone. Hydrangea is a very beautiful, fast-growing, and showy perennial flowering shrub grown in USDA Zones 5 - 9 reaching up to 15 ft. in height..Hydrangea is perfect for Specimen plantings, mixed borders, and mass plantings. It can be used as a hedge or a screen. Excellent for both fresh and dried cut flowers..Sow. Place the seeds on top of the dirt—not buried beneath it. Put them near a sunny window indoors, and keep the soil moist until germination. Germination should take about 14 days..Sun. Hydrangeas do well in the partial shade provided by tall deciduous trees, especially if they receive morning sun and the partial shade occurs in the heat of the afternoon..Soil. You can control bloom color by adjusting the soil pH. Acidic soil with a pH of 6.0 or lower produces blue flowers and neutral to alkaline soil with a pH of 7.0 or higher produces pink blooms.
