Pachypodium rosulatum subsp. cactipes

Pachypodium rosulatum subsp. cactipes is a subspecies native to Madagascar, occurring in dry, rocky slopes and open scrubland where it receives intense sunlight and grows in sharply draining soils. It stores water in its swollen, bottle-shaped caudex, an adaptation to the region’s pronounced dry season.

From the caudex, thick, spiny stems branch and produce rosettes of narrow, lance-shaped leaves during the active growing season. The foliage is shed during winter dormancy, leaving the bare, thorn-covered branches exposed. The spines act as a deterrent to browsing animals in its native habitat.

In late spring to summer, mature plants produce tall flower stalks topped with bright yellow, funnel-shaped blooms. These are insect-pollinated and stand well above the foliage, creating a seasonal contrast to the plant’s sculptural form.

Care Tips:

• Light: Full sun to very bright light for healthy growth and flowering.
• Water: Water thoroughly when the soil is dry during the growing season; keep almost dry during dormancy.
• Humidity: Low humidity is preferred.
• Media: Use a very free-draining cactus and succulent mix with coarse sand or grit.
• Fertiliser: Feed monthly in the growing season with a diluted, low-nitrogen fertiliser.
• Temperature: Maintain above 15 °C; protect from frost.
• Repotting: Repot only when required, minimising disturbance to the caudex and roots.

Additional Notes:

• Known to be toxic