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Description: The typical Stenocereus
marginatus is a multi-stemmed “, stiff and imposing, columnar
cactus. In the wild, basally branching with unbranched stems, up to 1.5
tall, cultivated, they are columnar, up to 4 m tall or more;
Stems: Dark green. The epidermis
surface is slightly rough to the feel, like sandpaper.
Areoles: White, glandular, mostly about 1cm apart, confluent
forming an uninterrupted longitudinal line.
Spines: Very
short in the mature branches.
The rare
fasciated form here described is considered by many one of the
finest cactus crest that form beautiful sculptured stems. It is sought
after and very priced by cactus impassioned. It is slow growing
but can also get quite big with time making a spectacular specimen
Cultivation: Stenocereus
marginatus is easy to grow but not very cold hardy (Resistant
as low as -4°C for a short time). The crests are sometime grafted
onto a Myrtillocactus trunk but are easily grown on their own
roots. Any normal shoots should be removed to promote the growth of the
crest
This cactus tolerates exposure to full sun and generally welcomes
moderate watering. They are semi hardy, make sure that your
Stenocereus are not exposed to temperatures below -4°C or they
may die, nevertheless it is a good advice never let the nighttimes
temperatures fall below 10°C. Water regularly in summer but allow to dry
fully before watering again. Need a well-drained soil mix with small
gravel added to ensure drainage. During the winter months they should
be rather kept dry and water is restricted to only enough to keep the
stems and branches from shrivelling. Since they are big sized plants
need plenty of space for their roots, repotting should be done every
other year or when the plant has outgrown its pot. Exposure: Light shade
when young, full sun later.
Propagation: Cuttings in summer (Cuttings will
root better in hot weather. Cuttings must be kept very dry to root).
Photo of conspecific taxa, varieties, forms and
cultivars of Stenocereus marginatus .
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