Looking at the pictures that aren’t camellias and magnolias.
Sumpf-Dotterblume
Caltha palustris
Veilchen
Viola
Wald-Sauerklee
Oxalis axetosella
Rhododendron
Zitronatzitrone
Citrus medica var. sarcodactylis
Mauer-Zimbelkraut
Cymbalaria muralis
Persischer Ehrenpreis
Veronica persica
Moos-Phlox
Phlox subulata
Vogel-Kirsche
Prunus avium
Trauer-Weide
Salix babylonica agg.
Magnolia (could not resist)