Pachypodium rutenbergianum - 5 seeds
Pachypodium rutenbergianum - 5 seeds
Pachypodium rutenbergianum is a candelabrum-shaped tree forming a stout, succulent, bottle-shaped trunk and is the largest of the pachypodiums, 3 to 9 m tall (occasionally it may reach 15 m with time). It has a heavily branched crown of thick forking branches. The showy pure white often with yellowish-green centre flowers are large, asymmetrical and smell of perfume. The leaves form around the growth tips of the trunk and branches and have a downward curvature in the length.
Fresh seeds results in a remarkable yield of new plants, perhaps 90% and seedlings grow fairly easily. Soak seeds in warm water for 24 hours before sowing in a 5 mm deep, sterile, moist sandy medium (4 parts fine and 4 parts coarse river sand 1 part sieved, well-rotten compost; 1 part perlite; 1 part vermiculite. Keep the mix moist and at a temperature of 27–35°C to ensure rapid germination. Seed start sprouting in just 3-4 days ( but continue to germinate erratically for about 6 month) they are also propagated by removal of branches from old plant (if they need to be pruned). They should be allowed to dry for 5 to 8 days before potting up, however the cuttings often fail to root. Seedlings grow fairly slowly compared to other Pachypodium species. Young plants have more conical spines and begin early to swell nicely, branch and even flower.