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Questions and Answers: 2021

Question: I have one Viburnum plicatum tomentosum 'Summer Snowflake Doublefile' planted a few years ago. It's in very good health but …

• Question

  I have one Viburnum plicatum tomentosum 'Summer Snowflake Doublefile' planted a few years ago. It's in very good health but I get no berries for birds. I've researched a bit and understand that I need another one of same species for cross pollination. A few other kinds of V. plicatum tomentosum are 'Popcorn' or 'Opening Day' or 'Mariesi' or 'Shasta' (doublefile varieties). I just want to confirm that I am correct in needing to plant one of these. How close to my existing Viburnum should it go?

  Answer

  Dear Tracey4367, yes, as I understand, most species of Viburnum are self-incompatible, so more than one genetically different individuals are needed for successful fertilization. I cannot offer much guidance in planting distance except for using a logical placement such that pollinators can easily travel between the two plants so that they can carry pollen from one plant to another. Best wishes.