Carol Cloud Bailey
NERIUM oleander 'Sister Agnes' ('('Soeur Agnes')')
Plant Common Name
Oleander, Sister Agnes Oleander
Oleander is a Mediterranean shrub that thrives where summers are dry and hot. It is a large, vase-shaped evergreen with leathery lance-shaped leaves and colorful flowers, which appear all year—most heavily from late winter to early summer. The showy, single, white flowers have a pale yellow to green funnel-shaped base from which flare five prominent radial petals. Blooms are carried in loose clusters at the ends of the branches. The cultivar ‘Sister Agnes’ is a large, vigorous plant and is more cold tolerant than other oleanders.
Plant these tough shrubs in full sun and well draining soil. Oleanders are very drought tolerant but appreciate moist soil and develop a better floral display, as well as overall form, if given good growing conditions. Often grown as a hedge, frequent shearing reduces flower production, so prune by hand to retain a healthy, natural shape. This is an excellent plant for difficult areas. It may be used as a container plant, large shrub, in mixed plantings or for screening.
There are potential health concerns with this plant. For more information about the toxicity of oleander see http://www.ces.ncsu.edu/depts/hort/consumer/poison/Neriuol.htm.
AHS Heat Zone
12 - 1
USDA Hardiness Zone
8 - 15
H1, H2, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24
Full Sun, Partial Sun
6'-20' / 1.8m - 6.1m
6'-15' / 1.8m - 4.6m
Early Spring, Spring, Late Spring, Early Summer, Summer, Late Summer, Early Fall, Late Winter
Acidic, Neutral, Alkaline
Clay, Loam, Sand
Pollution, Salt, Soil Compaction
Drought Tolerant, Average Water
Container, Feature Plant, Foundation, Hedges, Mixed Border, Screening / Wind Break, Tropical
Sharp or Has Thorns