Adenium
Adenium obesum is an evergreen, perennial flowering shrub native to East Africa and the Arabian Peninsula. It is a popular houseplant due to its interesting, almost succulent-like form and vibrant blooms that last throughout summer. Adenium obesum commonly referred to as desert roses, can thrive indoors though they prefer relatively sunny locations. The desert rose is a slow-growing plant reaching an adult size of about 4 to 6 feet in height, it usually begins flowering in late spring and continues through the summer when it receives bright, but indirect light. Care instructions vary from region to region, however there are several tried and true tips to keep them healthy indoors.
Adenium obesum does not require a lot of water and should be watered only when the soil is almost dry. Water about once a week with lukewarm water and allow the soil to dry out completely, or nearly so, in between waterings. Never over water as this can cause root rot.
Adenium obesum does best when placed in a location that receives bright, indirect light or partial shade. This plant can also handle some direct sunlight and prefers temperatures of 70 to 90 Fahrenheit, but does not tolerate temperatures below about 65 degrees Fahrenheit. If leaves turn yellow, it may be a sign of too much direct sunlight.
The ideal temperature for your Desert Rose should remain between 70 to 90°F (21 to 32°C). Do not let the temperature drop below 65°F (18°C). Temperatures below 55°F (13°C) can cause frost damage and can even kill your plant.
Adeniums do not need high humidity levels. A normal level of humidity is adequate. Keep the soil slightly moist at all times, but make sure there is good drainage. Be careful not to let the soil dry out for too long. If the leaves start to shrivel, it may be a sign of too little water.
The best soil for Adeniums is one that is light and fast draining. Cactus soil, or soil mixed with perlite, is an excellent choice. Avoid potting mixes with high organic matter as these tend to retain too much water.
Adeniums can benefit from an occasional fertilization during the growing season. Use a balanced, water-soluble fertilizer diluted to half strength. Fertilizing should be done every other week during the spring and early summer, and less so during the rest of the summer. Fertilization should cease entirely during the winter months.
Adenium obesum is relatively resistant to pests though is susceptible to mealybugs, aphids, and occasionally spider mites. To remove mealybugs and aphids from your plant gently spray the foliage with a mixture of mild soap and warm water or use a cotton swab dipped in rubbing alcohol to dab them off. If spider mites are present, handpick off the spiders and spray with a mild soapy water solution to kill off any remaining pests.
Adeniums should not be repotted often. Repotting should be done when the plant outgrows the existing pot or when the soil becomes compacted and are best done in mid- to late summer, when the plant is actively growing.
Adeniums require light pruning. If the foliage becomes unruly or too full you can lightly trim the foliage to help maintain the shape of your plant. Do not prune more than ⅓ of the foliage at once. If more vigorous pruning is desired, wait until the spring when the plant is actively growing.
When grown on the ground, apply a thin layer of mulch to help retain moisture. Avoid thick layers of mulch as this can hold too much water and can cause root rot.
Adenium obesum can be propagated through cuttings, grafting, or air layering. Cuttings can be taken from the woody stems of the plant and replanted in moist soil. Grafting involves using a combination of two plants and can be used to propagate Adeniums. Air layering requires you to wrap the stem of an Adenium in damp sphagnum moss, then cover the moss in plastic to encourage root growth.
Adenium obesum can become very top heavy and may need support, especially when young. Use a stake to provide extra support at its base to avoid damaged stems and branches.
Adenium obesum require a rest period during late fall and winter in order to produce the most vibrant blooms. Water less and ensure that temperatures remain between 50 and 65°F (10 to 18°C). Fertilizing should stop during this time as well.
Adenium obesum is toxic to pets, primarily cats and dogs, if consumed. Keep all pets away from this plant to ensure their safety.
Desert Rose
Desert Rose, also known as Adenium obesum, is an evergreen succulent plant native to the Arabian Peninsula and certain regions of East Africa and Mada...
Impala Lily
The Impala Lily (Adenium multiflorum) is a beautiful, heat-loving, evergreen shrub that is native to southern Africa. This low-maintenance houseplant...