Gardening Questions And Answers
Cut all the lower leaves off your oleander cutting, leaving only the tip growth. You can either place these oleander cuttings in a mixture of water and rooting stimulant until you are ready to plant or simply plant them right away. This will trap in the moisture and humidity that oleander needs to develop roots.
Does Cold Affect Oleander? Even a light dusting of frost can burn the developing leaf and flower buds of oleander. During heavy frosts and freezes, plants may die back all the way to the ground. But in their hardiness range, oleanders that die to the ground typically don’t die all the way to the roots.
Unlike many flowering plants that attract a host of bees, butterflies and hummingbirds, oleander (Nerium oleander) stands unvisited by most pollinators. This shrub defies conventional pollination methods by relying instead on two botanically surreptitious adaptations — deceit pollination and insect cheating.
The most common reason for yellow leaves on Oleanders is overwatering, and the worst case is the Oleander Leaf Scorch. You should not over or underwater your Oleander plant. Yellow leaves on these plants can be easily prevented with a proper soil mixture, watering schedule, fertilization, and plant hygiene.
Oleander (Nerium oleander) leaves are drought resistant. To survive in an arid environment, an oleander has to limit transpiration through its leaves. The upper leaf surface, which is more exposed to the heat of the sun, has a thick, waxy coating. Called the cuticle, it limits transpiration by the epidermal cells.
Shrubs that bloom over longer periods and summer-flowering shrubs, like rose and oleander, respond best to deadheading, but this practice does not extend the flowering time of perennials that bloom over a brief period or of shrubs such as azaleas or hydrangeas, which bloom from a set number of buds.
Location. Oleanders are quite adaptable, but prefer a location that receives full sun. In areas with partial shade, oleanders may still produce flowers, just not as many. Almost any soil type will do, including heavy clay, well-drained sand, marshy plots, and areas with high levels of sodium, chloride and similar salts
Oleander leaf scorch is caused by the bacterial pathogen Xylella fastidiosa. Symptoms include drooping and yellowing leaves, which are also symptoms of drought stress or nutrient deficiencies. However, if an oleander is drought-stressed, the leaves begin turning yellow at the middle and then spread outward.
Nerium oleander is a popular ornamental garden plant due to its beauty and tolerance of poor soil and drought, but unfortunately it’s very toxic to many species of animals. Dogs, cats, goats, cattle, sheep, camelids, budgerigaries, rabbits and horses are all species that have been affected by oleander.
Improper Care Proper irrigation and fertilization are important to the health of oleander plants. Salt toxicity and excessive water can lead to plant death. Too much water can smother and kill roots. Symptoms of prolonged over-watering include wilted, discolored and dying leaves that drop off prematurely.