Watermelon is a "true annual". True annuals will only live longer than a year if they are prevented from setting seed.
Some other examples of "true annuals" are corn, lettuce, peas, cauliflower, beans, marigolds and zinnias.
I've found lots of good vegetable, fruit and flower info on eGardenSeed.com
Perennial :)
Yes. Heather is a perennial plant.
It is a perennial plant.
Asparagus is a perennial vegetable plant.
Yes orchids are perennial.
perennial
A tender perennial is a perennial plant that is not hardy in cold climates.
Lavender is a shrub and is therefore perennial.
Iris is a perennial plant.
there are perennial and annual avocados,so it means it can be both.
A Weeping Willow is a tree so it is perennial.
Yes, strawberries are a perennial plant, meaning they can live for multiple years and produce fruit seasonally.