How To Successfully Care For Your Desert Rose

A desert rose is a unique plant known by many names. Whether referred to as an impala lily, mock azalea, or otherwise, this plant is a popular addition inside and outside homes. They are identifiable by their swollen trunks, which give them a similar shape to the popular bonsai plant. However, they are also remarkable for their vibrant leaves that sharply contrast with white, pink, and red-mottled flowers.

This beautiful plant grows naturally in North Africa, South Africa, and the Middle East and thrives in warm and sunny climates. Keeping this in mind, you'll need to mimic these natural conditions to encourage your own desert rose to sprout and flourish inside or outside your own home. Since these plants are succulents, they require abundant sunlight, little watering, and careful nourishment. Learn more about the care and keeping of this distinctive succulent so you can cultivate your plant properly throughout its lifetime.

If you live in a habitable zone for the desert rose, the next step is determining where in your yard to plant it. Remember, as their namesake indicates, they are desert plants and should be planted in a location that mimics that biome's conditions. These succulents thrive under full sun exposure, so be sure to plant them in a location that won't be shaded by taller trees or bushes. If they aren't placed where they can receive adequate sun, you will know, for their flowers will never bloom.

You should also consider their proximity to other plants and features on your property before committing to a spot. Each plant should be at least two feet from other plants so it has room to spread its stems, flowers, and roots. This plant does best with more space to itself, so the further away you can place it, the better. Try to keep your desert rose at least two feet away from your driveway, sidewalk, or stone or concrete path. When the flowers fall at the end of a season, the vibrant petals can stain other features on your property. Keeping your succulent at a safe distance from any concrete or stone will keep fallen blossoms on your lawn rather than your pathways.

You should know that many people grow these succulents in oversized pots in their yards and homes. Putting it in a pot allows you to take it with you if you move or change your landscape without uprooting your plant. Start with a container at least 12 inches wide and six inches deep, but expect to double its size yearly until your plant reaches full maturity. If you're placing it in your home, make sure it's near a window that receives bright light throughout the day. If none of your rooms have sufficient natural light, you can always invest in grow lights to aid in its survival.

Above all else, an Adenium obesum should be kept in a desert-like environment, and temperatures of at least 50 degrees and higher are recommended to keep this flower alive throughout the winter. If your plant is in a pot, you can move it indoors or against a wall to help it retain heat. You can also force dormancy by cutting off the leaves or allowing your plant to drop leaves naturally. If your plant is permanently situated outdoors and the temperatures fall too low, cover them in two layers of plastic sheeting. 

In addition to maintaining their environment, you should follow proper fertilization and watering practices. Fertilize a newly sprouted plant throughout the growing seasons, spring and summer, with a 20-20-20 fertilizer. Once your Adenium obesum is old enough to bloom and its flowers appear, switch to a high-phosphate flowering fertilizer, such as a 5-50-17. You should not water it too often, and the exact routine depends on your local climate, soil mix, and how much light the plant is getting. Outdoor plants may need watering one or two times a week, but indoor plants require even less and you can usually water them bi-weekly. Professional gardeners recommend misting indoor desert roses to ensure you don't accidentally waterlog the soil.

The toxicity of the desert rose is unquestionably strong, and it is extremely poisonous for both animals and humans. This plant contains a cardiac glycoside toxin, digitalis, which directly interacts with the heart muscle (via Wag Walking). Consuming or touching the plant sap causes poisonous effects in 12-36 hours, and the most commonly reported health effects in people are dizziness, malaise, nausea, and vomiting (via Tips Plants). Consuming large amounts of this plant and its sap can even be lethal.

If you have pets, you'll want to ensure they do not have access to this plant since eating it or even licking it can cause severe health issues. Keep your plant sanctioned in a fenced-off garden or a closed room to keep your pets safe, especially if they are curious eaters. This advice is also applicable if you have young children with adventurous appetites.

Whether indoors or outdoors, your desert rose plant is susceptible to pests and diseases like all other living things. There are four primary garden pests to watch for; aphids, mealybugs, scale, and spider mites. These creatures infest the leaves of plants, feasting on sap until a plant slowly withers and dies. You can deter these creatures by coating your desert rose in neem oil, a natural pesticide and fungicide that prevents future and current infestations by repelling bugs at every stage in their life cycle. It's recommended that you only apply this oil in the evening so it has time to set in before the next day's light. Neem oil's properties make leaves more vulnerable to sun scorching, and you'll want to avoid this issue while trying to fight off an infestation issue.

If you live in a coastal area in the southeastern United States, you should also watch for oleander caterpillars. These caterpillars thrive by feeding and laying their eggs on plants like desert roses. Their infestations aren't fatal; however, they will strip your plant bare and leave it exposed to the previously discussed pests.

When kept healthy in a prime environment, most species of desert rose can reach between three to nine feet tall and three to five feet wide. They grow very slowly compared to other plants, which is why they often don't reach full maturity until age three. As they grow older, the trunk will divide, giving it a more bonsai-like appearance.

Depending on where you live and the species of Adenium grown, you can expect flowers from late spring to early fall. These flowers reportedly last a week or multiple weeks, again depending on your local climate and type of plant. If you're struggling to get your plants to bloom, make sure you're using a fertilizer rich in phosphorous. The second number on the fertilizer label indicates how much phosphorous is in the mix, and a higher number will help provide the nutrients your plant needs to flower.