I did my first rhododendron crosses of the year on 11th May, Mother's day in Finland this year. The parent was Weissenburg,
a double-flowered German hybrid that I ordered from Hachmann this Spring. I'm very excited about Weissenburg (R. 'Whitestone' X R. degronianum ssp. yakushimanum var. yakushimanum) as it is one
of the very few double-flowered hardy elepidote hybrids. I've had Queen Anne's for several years and it's fantastic, though not fully hardy here. Weissenburg, with it's yaku blood, has very different, low growth habit. I pollinated Weissenburg with two hardy
Finnish hybrids, Elviira and Haaga, for now. More next weekend. These double-flowered hybrids are very easy to work with as there is no danger of self pollination.