Close-up of Euphorbia ritchiei showing raised green stem tubercles and small prickles

Potted Euphorbia ritchiei with bright green leaves at the tip of its thick stem

Group of three Euphorbia ritchiei succulents with overlapping green leaf clusters

Upright Euphorbia ritchiei with a pale green patterned stem in a light nursery pot

Tightly packed, diamond-shaped tubercles on a Euphorbia ritchiei succulent stem

Young Euphorbia ritchiei with an upright textured stem and a leaf rosette in a dark pot

Three Euphorbia ritchiei plants showing different stem shapes and leafy crowns

Euphorbia ritchiei with a knobbly green stem and oval leaves in a dark brown pot

Broad green leaves emerging from the patterned stem of Euphorbia ritchiei

Small Euphorbia ritchiei succulent with spreading top leaves in a beige pot

Euphorbiaceae

Euphorbia ritchiei

5 for 4

Euphorbia ritchiei combines knobbly succulent stems with spiralling rows of fresh green leaves. Basal shoots cluster around the main stems in a leafy clump marked by regular raised bumps.

Read full guide to Euphorbia ritchiei

€9,75

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Choose a size

Baby · XS Pot Ø 6 cm · approx. 5 cm tall

Variant

Sizes are approximate. Height is measured from the bottom of the pot to the top of the plant; diameter at the widest point.

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Care at a glance

Euphorbia ritchiei

Light

Bright indirect • approx. 10,000–20,000 lux

Watering

Water when ~90–100% dry

Substrate

Gritty • Ultra fast-draining • Mineral-heavy • Fine-medium

Temperature

Ideal: 18–30 °C • Avoid below: 10 °C

Humidity

Average 40–50%

Growth habit

Clumping succulent perennial.

Support

not needed

Growth speed

Slow

Cultivated size guide

Height: 60 cm • Spread: 60 cm

Toxicity & safety

Toxic

Origin & habitat

Native to Kenya

Outdoor growing

Outside from 12 °C · sheltered spot

How to read these values

These care values give practical guidance for growing the plant. Adjust care for pot size, substrate, temperature and how quickly the substrate dries.

For more detail, read the full product description or visit our Plant Care Guides.

Light: level and approximate lux at leaf level.
Watering: “% dry” shows how far the substrate should dry before watering again.
Substrate: structure, drainage, moisture retention, base material and particle size.
Temperature: “Ideal” shows the preferred range; “Avoid below” marks the cold-stress threshold.
Humidity: target range; steady conditions usually matter more than exact numbers.

Growth habit: how the plant grows, such as upright, climbing, trailing, clumping or rosette-forming.
Support: whether a stake, pole or trellis is needed, optional or unnecessary.
Growth speed: expected pace under suitable growing conditions; use as a guide, not a promise.

Cultivated size guide: approximate dimensions for an established plant in the stated growing context. Height is measured upwards from the growing surface; foliage height excludes flower stems. Trailing length follows a stem, while foliage drop is the vertical distance from the crown to the lowest leaf tips. Spread is the width of the leafy plant or crown, not an individual leaf. Flowering height includes the flower stems. A container guide applies to pot-grown plants; an in-ground guide applies to plants rooted in the ground. Size also depends on age, conditions, pot space and training.

These figures do not describe the size supplied and are not fixed upper limits.

Toxicity & safety: irritation, toxicity or physical hazards such as spines or bristles.
Origin & habitat: native range, hybrid background or typical habitat where relevant.
Outdoor growing: when a potted indoor plant can be placed outside and what outdoor protection it needs.

Euphorbia ritchiei

Green leaves gather near the tops of short upright to leaning succulent stems. Raised conical bumps form regular rows along the shoots, while additional stems appear beside older growth and gradually widen the compact clump.

Stem pattern, leaves and clumping of Euphorbia ritchiei

Stem surface: Raised conical bumps form regular rows along the succulent shoots.
Leaves: Fresh green leaves are arranged in spiralling rows and are most prominent while the plant is growing.
Stems: Short upright to leaning stems keep the clump compact.
Clump: New stems emerge around the parent and gradually spread the clump outward.

Origin & background

Natural range and habitat of Euphorbia ritchiei

Euphorbia ritchiei is native to Kenya, where it grows in dry shrubland and on stony or rocky slopes.

Rain falls seasonally in its native habitat. It grows on open, fast-draining ground that dries well between wetter periods. These exposed sites are warm and bright.

Plant care

Caring for Euphorbia ritchiei indoors

Light: It prefers light shade, so choose a bright indoor spot with indirect light. It may tolerate a sunnier spot if you introduce the extra sun gradually.
Temperature: Keep it around 18–30 °C and above 10 °C, with protection from cold draughts and sudden temperature changes.
Humidity and airflow: Low to average household humidity suits this Euphorbia. Keep air moving through the leafy clump after watering.
Watering: While leaves are growing, water after the potting mix is dry and the pot feels light. If the leaves thin out and growth pauses, reduce watering frequency sharply and let the mix stay dry between waterings.
Potting mix: Use an airy, gritty succulent mix around the fleshy underground base so excess water drains quickly.
Feeding: Give a light dose of succulent fertiliser only while leaves and new shoots are growing.
Repotting: Use a pot with enough width for new shoots that spread below the surface. Move to a slightly wider pot when new stems reach the rim.
Propagation: An established clump can be divided if each piece has healthy roots and at least one stem. Stem cuttings are another option. Let cut surfaces seal.

Issues & solutions

Problems and solutions for Euphorbia ritchiei

Leaves fall while the stems remain firm: Leaf drop can follow slower growth, lower light or a change in conditions. Check that the stems and base are firm and make sure the plant is still getting enough light. If growth has slowed, water less often. If it is still growing in weak light, move it closer to a brighter window.
The fleshy base under the potting mix feels soft or smells sour: Softness or a sour smell from this fleshy base strongly suggests rot after prolonged wetness. Stop watering, unpot the plant and cut away rotten roots and any soft tissue with a clean blade until only firm, healthy tissue remains. Discard the rot, wait for the cuts to seal, then repot the remaining healthy plant.
New shoots become long, pale and weak: Long, pale and weak new shoots often indicate insufficient light. Move it gradually into a brighter position so later shoots grow shorter and sturdier.
Cottony insects around leaves and raised bumps: Inspect the raised stem bumps and leaf bases for living mealybugs. If they are present, separate the plant, remove them carefully while avoiding its irritating latex, and use only a treatment labelled for mealybugs on indoor ornamental plants, repeating it exactly as directed.

Safety

Euphorbia ritchiei is toxic to people and pets

Keep this plant away from children, cats and dogs, and avoid contact with its milky sap.
The milky sap is irritating and can burn the mouth or injure skin and eyes.
Sap exposure may cause painful irritation, while swallowing plant material can cause vomiting or stomach pain. Contact a veterinarian or medical professional promptly, especially after eye exposure.

Names & etymology

How the name Euphorbia ritchiei came about

Euphorbia honours Euphorbus. The epithet ritchiei honours the Scottish naturalist Archibald Thomas Ayres Ritchie.

Carl Linnaeus established the genus Euphorbia in 1753 in Species Plantarum, page 450.

Peter René Oscar Bally first described it as Monadenium ritchiei in 1959 in Candollea, volume 17, page 32. Peter Vincent Bruyns later placed it in Euphorbia as Euphorbia ritchiei in 2006 in Taxon, volume 55, page 415.

Plant names, growth habits, natural habitats and indoor care guidance are checked against trusted botanical, habitat and horticultural references before publication.View our plant care resources and references.

Euphorbia ritchiei

€9,75