Onions are biennials
annual plant
guava is a perennial plant
its perennial tree
Spinach is an annual crop. To be more specific it is called a "winter annual" since it germintes in cool autum and grows vegetatively until grwoth is gradually slowed down as temperatures decrease through the winter. Doc TC
Neither its open
it is perennial
perennial
annual
annual
annual plant
annual for eating, biennial for seed saving
Sugar cane is a tall perennial grass.
annuals
guava is a perennial plant
There are some perennial plants that are toxic, such as foxglove, but there are also many that are not harmful at all.
Biennial, annual and perennial are different types of plants. A biennial completes the life cycle in two years, while the perennial takes more than one year to grow. The annual completes the life cycle in one year.
Typical sunflowers that are planted are annuals; however, there is a newer crop being developed called "perennial sunflowers."