花はなを供そなえる

Meanings

1

expression, ichidan verb

offer flowers; leave flowers

Used for placing flowers as an offering, especially at graves, altars, or memorials.

供そなえる
供える alone means 'to offer' in a religious or memorial context; 花を供える is a specific common phrase for offering flowers.

Phrase composed of 花 (flower) + を (object marker) + 供える (to offer). The verb 供える is used for ritual offerings.