Adenium obesum , normally forebode Desert Rose , is a long - lived succulent plant . It has thickened stems and a swollen base ( caudex ) . The limbs are smooth with little green leaves . The trumpet - determine flowers are white , rise or pink .
Desert rose are stout in Zones 10 and 11 , and may continue blooming throughout the twelvemonth . Plants in containers often go sleeping during the wintertime season and mislay their leaves .
Culture and Prevention
Most diseases of Desert rose are triggered by too much weewee , poor drain or overhead lacrimation . Proper planting and care can decrease the probability of a disease infecting the plants .
Desert Roses should be planted in a well drained area , a raised layer , or a container with very unspoilt drainage . When the plant are actively grow , they should be watered thoroughly whenever the grunge is dry . During sleeping , the works should be watered only enough to keep the potting soil from completely dry out out and hardening .
Desert Roses should not be watered from operating cost . They should be water in the early morning to allow the foliation and peak time to dry before the damp nighttime time of day .
Stem Rot
Stem Rot due to a fungus is the most vernacular disease of Desert Roses . The infected helping of the bow may be yellowed or black . The decay may be wet or ironical . A Desert Rose may cure itself by border the septic surface area with new growth , called an cutting off zone . Once an abscission geographical zone is organize , the theme will snap off . If an abscission zone does not form , the infected stem should be cut back until there are no star sign of discoloration in the stem tissue .
Other Rots
When a Desert Rose flower holds water , it may get to moulder . The rot circularise part way down the theme before the plant heals itself .
Caudex Rot affects the swollen base and main stem of Desert Roses . All the leaves on infected plants suddenly turn yellow and droop , but do not precipitate off . An infected plant normally die , but some larger Desert Roses may heal themselves .
The leave of Desert Roses affected with Root Rot also turn yellow , but they strike off . All Desert Roses infected with Root Rot die .
Leaf Disease
Leaf Disease come about when the foliation of a Desert Rose plant is continually wet . The leafage turns brown and begin to rot . A white-hot fungal growth seem on the septic leaves , which mat together . The disease spreads to soft stem . septic plant part should be dispatch and destroy .
Warning
All part of the Desert Rose are poisonous . Hunters in Africa used the fool to make poisonous arrows to kill fish and game .
