Pachypodium baronii is one of the most attractive species in the entire genus that can be grown both indoors, as well as outdoors in warm climates. It’s a rare and slow growing species and an impressive caudex can be developed over the years. In the winters it is deciduous. Pretty cold sensitive- supposedly prone to rot if wet in winter cold. It may be grown as a specimen among rocks and low-growing plants in a hot rockery. It may also be grown in a heavy container on the sunny patio. Soil: Needs a gritty, porous cactus potting mix with peat gneiss sand, pH 4-5. It needs larger pot sizes than other species. Watering: Water sparingly in the heat of the growing season to encourage new growth, foliage and flowering, and give extra well-drained soil to avoid waterlogged conditions, no water from late autumn to mid-spring. The watering program will change depending on temperatures and stage of growth, but it is best not to let this plant dry out completely for any length of time. Indoors it is best to keep it on the dry side, or it is prone to rot. Outdoors it must be protected from the rain in winter. Do not let this specimen sit damp in cool weather. The older it gets the less water it must receive! Hardiness: It is sensitive to cold and should be kept totally dry in winter .Temperature from spring to autumn: nocturnal 12°C and diurnal up to 40°C. Wintering: nocturnal 12°C and diurnal 20°C or more, but it demonstrates some cold resilience if dormant and the soil is bone dry in winter. Protect from frost. It tends to lose its leave and go dormant in winter (USDA Hardiness zones: 10 – 11). Exposure: It like full sun to light shade. Maintenance: This Pachypodium will not require any pruning to look like a very interesting and unusual bonsai, but after several years it can outgrow its indoor location, requiring a 'pruning'. It has amazing regenerative properties.