biennial -- ((botany) a plant having a life cycle that normally takes two seasons from germination to death to complete; flowering biennials usually bloom and fruit in the second season)
Overview of adj biennial
The adj biennial has 2 senses
biennial, two-year -- (having a life cycle lasting two seasons; "a biennial life cycle"; "parsnips and carrots are biennial plants often grown as annuals")
biennial, biyearly -- (occurring every second year; "they met at biennial conventions")