| The plants your after are given the general name 'carrion flowers'. Plants which emit foul odours to attract pollinators.
The main four are:
Amorphophallus
Rafflesia
Stapelia
Smilax or Nemexia
Amorphophallus range from small bushes to almost tree size. They are bulbous plants which grow in spring, and die back in winter, at least in our cooler climates. They produce tree like foliage in spring through summer. Once the bulb fattens up they will produce a spadix flower in early spring, then when it dies off they produce the foliage. Large, very stinky flowers.
Rafflesia are tropical South East Asian plants, though I believe they are parasitic and are not photosynthetic. They have only be documented of in the wild as cultivation is impossible of the larger species.
Stapelia are an easy choice, I grow several which have yet to flower. Primarily South American succulents, they produce stinky flowers ranging from 1cm across to something the size of an open hand depending on species. Fairly easy to care for, should be treated like regular succulents.
Smilax, sometimes put into the Genus Nemexia are North American vines which produce small green smelly flowers. Depending where you live these may be perfect for you in garden.
Other than them, I recommend a few Stapeliads as they are easy low water growers as well as Amorphophallus Konjac, which I grow. Its a fairly easy species and produces nice foliage and a good size flower, though mine is not big enough yet.  |