Oleander is an attractive evergreen shrub for warm climates. Oleander produces heavily scented, colorful flowers all summer and fall. Oleanders bloom from summer to fall, with fragrant flowers in shades of apricot, copper, pink, lilac, red, purple, salmon, yellow, and white, depending on variety. Oleanders grow 6 to 12 feet tall and wide, and some varieties can be trained to grow into small trees up to 20 feet tall. The flowers are very fragrant. Oleanders are adaptable and will withstand dry conditions as well as marshy soils.