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Plant guide

Desert Rose.

Adenium obesum

Pronounced ah-DEE-nee-um oh-BEE-sum

Also known as Desert Rose, Desert-Rose, impala lily, impala-lily, mock azalea

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desert rose
Photo by Morten Ross (CC BY) via iNaturalist

The Desert Rose is a stunning succulent known for its thick, swollen trunk and vibrant, trumpet shaped flowers. It thrives in hot, sunny conditions and stores water in its caudex. You will love how it brings a desert aesthetic to your home.

At a glance

Care level
Moderate
Plant type
Succulent
Light
Full sun
Indoor light
Direct sun
Water
Every 7 to 14 days
Mature size
3 to 5 feet
Growth rate
Slow
Hardiness
USDA 10 to 12
Bloom time
Spring to summer

Care

Always let the soil dry out completely between waterings to prevent root rot. Watch for soft, mushy stems which indicate overwatering. Keep it in the sunniest spot you have for the best blooms.

Watering
Water only when the soil is bone dry throughout the pot.
Feeding
Feed with a balanced liquid fertilizer during the active growing season.
Pruning
Prune back long, leggy branches in early spring to encourage a bushier shape.
Repotting
Repot only when the plant becomes root bound or the soil breaks down.
Soil
Well draining cactus or succulent mix
Soil pH
6.0 to 7.0
Temperature
10 to 35°C
Humidity
20 to 50%

Safety

People
The milky sap contains cardiac glycosides that can cause severe irritation and heart issues if ingested or touched.
Pets
This plant is toxic to cats and dogs if ingested.
Children
Keep this plant well out of reach of children due to its extreme toxicity and irritating sap.
Contact allergens
The sap can cause skin irritation or rashes upon contact.
Airborne allergens
There is no significant evidence of respiratory allergies.
Edibility
All parts of this plant are highly toxic if ingested and should never be consumed.

How to identify it

  • Swollen, succulent base called a caudex
  • Glossy, dark green oval leaves
  • Vibrant, trumpet shaped flowers
  • Thick, fleshy stems and branches
Height
0.3 to 1.5m
Spread
0.2 to 0.9m
Leaves
green, deciduous
Flowers
pink, red, white, 4 to 7cm
Fruit
tan, Late summer

Common problems

  • Mealybugs — Small white insects that suck sap from leaves and stems.
  • Root rot — Fungal decay caused by overwatering or poor drainage.

Growing it

Propagation
seed, cuttings, grafting
When to plant
spring

Pair with other drought tolerant succulents to ensure consistent watering needs.

Grows well with

  • Aloe — They share similar water and light requirements.
  • Jade plant — Both are succulents that thrive in well draining soil.

Similar species

  • Plumeria — They share similar growth habits and flower types.

Science

Family
Apocynaceae
Genus
Adenium
Order
Gentianales
Class
Magnoliopsida
Native range
Tropical and subtropical Africa and the Arabian Peninsula.
Conservation
It is not currently listed as endangered, but wild populations are threatened by overcollection for the nursery trade.

It survives in arid environments by storing water in its succulent trunk.

Value to wildlife
nectar source
Pollinators
bees, butterflies, hummingbirds
Uses
ornamental, container plant, bonsai subject

Through the year

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Flowering
Fruiting
Foliage

Ecological indicators

Salinity
2/9
Soil reaction
6/9
Light
8/9
Temperature
8/9
Moisture
2/9
Nutrients
3/9

Taxonomy resolved against GBIF.

Questions people ask

How often should I water it?
Water only when the soil is completely dry.
Does it need full sun?
Yes, it thrives in bright, direct sunlight.

Where the name comes from

Adenium refers to Aden, where the plant was first described, and obesum means swollen, referring to its thick stem.

Good to know

  • It is often called the desert rose.
  • The plant can live for decades if kept in the right conditions.
  • It is a popular choice for bonsai enthusiasts.
  • The flowers can bloom in various colors depending on the cultivar.

Also in

Is your desert rose looking unwell?

This page is a general guide. Pocket Botanist diagnoses problems from a photo of your actual plant, works out watering for your light and conditions, and reminds you when care is due.

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This guide was generated with AI and checked against GBIF taxonomy. It is general information, not horticultural or veterinary advice. Read about how we build these guides.