This rare evergreen climber from Mexico with great glossy leaves is the most amazing hydrangea we've seen. The leaves are thick and slightly ovate and a great contrast to white pods that open to a delicate white lacecap. White sterile flowers surround white fertile florets that open with white corymbs. This beautiful plant will grow upright with little assistance or climb with trailing tendrals.
I have seen this spelled many different ways - Seemanni, Seemanii.