Chamaecereus silvestrii (now renamed Echinopsis chamaecereus)
is an old species widely hybridized with various Lobivias, hence
Chamaelobivia (intergeneric hybrid of Chamaecereus and
Lobivia), but since both of those are now reclassified as
Echinopsis, that makes this an Echinopsis hybrid.
Chamaelobivia are very popular hybrids that develop really
amazing flowers of different colours on the original "peanut" body and
many of these hybrids have cultivar names. These
plants soon form spectacular clumps with
20-30 (or more) flowers at a time, and are quite
They are often thicker,
stronger, larger growing than C. sylvestrii,
and tend not to have the typical peanut shaped offsets. The offsets
produced are more strongly attached to the main
Most of these hybrids can grow outside all year,
and can take a lot of sun. Hardy from -4°
to -12° C, depending on clone
Cultivation: This is an easily grown cactus, suited to hanging
baskets as well as pots. Grow in well-drained
soil in a sunny spot. This Echinopsis needs a
period of cool rest in winter to produce flowers abundantly.
It flowers freely indoors if conditions suit it.
The plant survives outside without protection in winter (cold
hardy to -8° ) but is then somewhat prone to rot,
It needs moderate water in summer, none in winter.
Watch for infestations of
mealybug, scale insects and spider mite.
Propagation: Easy to propagate from offsets. Small joints are
produced in quantities (peanuts). These offsets
can be detached and planted immediately, as they
root easily with no assistance when they touch the ground. Just let them
lay on the soil and you have a new start.