Gentiana lutea
Fragaria vesca 'Yellow Wonder'
Hyacinthoides non-scripta
Paeonia itoh 'Pastel Splendor'
Iris sibirica 'Colonel Mustard'
Liriodendron tulipifera 'Snowbird'
Anthriscus sylvestris 'Ravenswing'
Persicaria amplexicaulis 'Bonfire'
Narcissus 'Broughshane'
Tulipa 'Akebono'
Calamintha nepeta 'Marvelette White'
Epimedium x rubrum 'Galadriel'