flowering calla lily by the garden lake, surrounded by papyrus plants

aethiopica africa araceae arum beautiful bloom blooming blossom blossoming calla cultivar cultivate cultivation dark decorative flower flowerhead flowering garden green grow growing growth helena horticulture hygrophilous inflorescence irish lakegreen leaf leaves lily national native papyrus perennial plant pond republic republicanism saint south southern spadix spathe species symbol water white yellow zantedeschia