Viburnum opulus ‘Roseum’ syn. ‘Sterile’ AGM – Snowball tree, Guelder rose Published June 19, 2022 at 500 × 500 in Viburnum opulus Roseum Snowball Tree at YouGarden Viburnum opulus ‘Roseum’ syn. ‘Sterile’ AGM – Snowball tree, Guelder rose