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
Lettuce is a hardy annual.
Perennial
It is annual
Perennial :)
Yes. Heather is a perennial plant.
It is a perennial plant.
A tulip 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.
annual :P nope its not perennial
Its an annual plant. Most garden vegtables are annual.
Iris is a perennial plant.