Cotyledon Orbiculata var. Undulata | Ripple-leaf Pig's Ear | Sculptural South African Succulent

Introduction

Some succulents impress with dramatic flowers, others with unusual forms. Cotyledon orbiculata var. undulata belongs firmly to the latter category. Its broad, silver-blue leaves with elegantly undulating margins create a sculptural appearance that becomes even more striking as the plant matures.

Native to the rocky landscapes of South Africa, this long-lived succulent has evolved to thrive in bright, dry conditions. Collectors appreciate it not only for its distinctive foliage but also for its graceful winter flowers and its ability to develop into a characterful, woody specimen over time.

Botanical Background

Cotyledon orbiculata var. undulata is a member of the Crassulaceae, a family renowned for water-storing plants adapted to arid environments. In habitat, it grows on rocky slopes and mineral-rich soils where rapid drainage and seasonal drought have shaped its evolution.

Its powdery wax coating, known as farina, is one of its most important adaptations. This natural layer reflects excess sunlight, reduces evaporation and protects the leaves from ultraviolet radiation. The characteristic silvery-blue colour is therefore not merely decorative but a functional survival strategy.

The variety undulata is distinguished by its pronounced rippled leaf margins, a feature that has made it one of the most admired forms within the species.

Why This Plant Stands Out

• Spectacular undulating silver-blue leaves
• Protective wax coating with natural farina
• Elegant shrubby growth that develops a woody trunk with age
• Orange to salmon-red bell-shaped flowers in winter
• Easy to cultivate and highly drought tolerant
• Excellent architectural specimen for succulent collections
• Outstanding bonsai potential
• Long-lived and increasingly beautiful over time
• Organically cultivated at TOMs FLOWer CLUB
• Grown slowly for compact growth and healthy roots

Plant Characteristics

Botanical name: Cotyledon orbiculata var. undulata
Common name: Ripple-leaf Pig's Ear, Silver Ruffles
Plant family: Crassulaceae
Origin: South Africa
Growth habit: Upright branching succulent shrub
Growth rate: Moderate
Mature size: 40–80 cm
Leaves: Thick, silver-blue, wax-covered with strongly undulating margins
Flowers: Pendulous orange to salmon-red tubular bells
Flowering season: Late autumn to winter
Fragrance: None to very slight
Special characteristics: Sculptural foliage, woody stems with age, protective farina
Collector value: Exceptional foliage, winter flowering, longevity, bonsai potential
Suitable location: Sunny windowsill, conservatory, greenhouse, frost-free patio in summer

Collector Insight

Among shrubby succulents, few species become more impressive with time than Cotyledon orbiculata var. undulata. The older the plant becomes, the thicker its trunk, the more pronounced its rippled foliage and the greater its sculptural presence.

Experienced growers rarely try to accelerate this process. Moderate watering, abundant light and restrained feeding consistently produce stronger colours, tighter growth and more dramatic leaf undulations than rapid cultivation ever could.

Cultivation Guide

• Light: Full sun to very bright light for compact growth and red leaf margins.
• Temperature: 15–30 °C; protect from frost.
• Water: Water thoroughly, then allow the substrate to dry completely.
• Humidity: Low humidity with good ventilation.
• Substrate: Highly mineral, free-draining mix with pumice, lava and coarse grit.
• Fertiliser: Minimal feeding during active growth.
• Repotting: Every 2–3 years.
• Propagation: Easily propagated from stem or leaf cuttings.
• Dormancy: Reduce watering during cooler months and after flowering.
• Common mistakes: Overwatering, insufficient light and excessive fertilisation reduce compact growth and leaf quality.

Cultivated at TOMs FLOWer CLUB

At TOMs FLOWer CLUB, every Cotyledon orbiculata var. undulata is cultivated with patience rather than speed. Plants are grown organically, never over-fertilised and established in a self-mixed, highly permeable substrate that encourages strong roots and compact growth. This approach reflects a simple philosophy: quality before quantity and long-term vitality over rapid production.

What You Receive

You will receive the plant size shown in the photographs, healthy, well rooted and established in TOMs FLOWer CLUB's carefully prepared substrate.