I Like Ice Cream: What Does Oleander Like?

Nerium oleander makes its own food so therefore it is autotrophic.  This means that it acquires its nutrients through the process of photosynthesis, which allows it to make its own sugars from water, sunlight, and carbon dioxide.  It obtains the water that it needs for photosynthesis via its roots, and it is then then transported through the xylem using the processes of transpiration, adhesion, cohesion, and tension all working together.
 
Once it has produced its own sugars in the leaves, the sugars are either used in the process of respiration or stored as starch for later.  Since this organism is autotrophic, it is a primary producer in its ecosystem meaning that it would be at the bottom of the food chain.  Subsequently, this organism is toxic so there are very few predators that actually consume it.  See interactions

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