(80-90 days. Allium schoenoprasum) For fresh uses that demand a delicate, fancy leaf. Mild onion flavor. Leaves are a key culinary herb, while the attractive globe-shaped blooms are used as an edible garnish. You can use chives to replace parsley. The mildness of the onion flavor is not overwhelming and chives can make an excellent, spicier substitute for parsley in many dishes.