SOW: Fill a container with potting soil, and sow the seeds on the surface; do not cover them with soil. Keep the soil lightly moist.
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TALL: Grows up to 8–15 ft. tall, 6–12 ft. wide.
SOIL: These shrubs can handle a variety of soil types, including sandy, loamy, and even clay provided that there is good drainage.
LIGHT: Tree hydrangeas grow well in full sun to partial shade, meaning at least four hours of direct sunlight on most days. In hot climates, they will benefit from some afternoon shade.
GERMINATION: Place the container in a sunny spot, and expect germination of the seeds within a matter of weeks.