Stout stems, giant flower heads, and serious cold hardiness! This introduction (Hydrangea arborescens ’Abetwo’) from Proven Winners is touted for having unbelievably huge mopheads of sterile, white sepals. We’ve had it long enough to verify how sturdily upright it is. And the blooms are quite large. After a brutal winter it’s a garden delight. Cold hardy in zone 4 and into the warmer bits of zone 3 (Canada). Some of our pictures courtesy of Proven Winners. Height to 5 feet, zones 3-9.
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