Cereus peruvianus v. Petra
Cereus repandus 'Petra'
Cereus cacti are erect or semi-prostrate columnar cacti reaching up to a meter in height, the stems up to 15 cm in diameter with up to 8 ribs, the central spines and 4 to 7 radial spines. Has white flowers to 25cm. Cereus peruvianus 'Petra' is drought tolerant when established. A popular cactus with heavy branching "arms". Needs well-draining soil, bright light or full sun. Water thoroughly when soil is dry to the touch. Looks best with regular watering in the hotter months.
Contributed by @magorc
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Full sun to partial shade
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Very little water
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Not Frost hardy
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Light and free draining
Common name
Cereus repandus 'Petra'
Latin name
Cereus peruvianus v. Petra
type
Succulent
family
Cactaceae
ph
5.5 - 6.5 Acid - Neutral
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Light
Full sun to partial shade
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Frost
Not Frost hardy
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Soil
Light and free draining
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Water
Very little water
Plant & bloom calendar
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Best time to plant
full grown dimensions
0.30 M
0.15 M
Cereus peruvianus v. Petra
Cereus cacti are erect or semi-prostrate columnar cacti reaching up to a meter in height, the stems up to 15 cm in diameter with up to 8 ribs, the central spines and 4 to 7 radial spines. Has white flowers to 25cm. Cereus peruvianus 'Petra' is drought tolerant when established. A popular cactus with heavy branching "arms". Needs well-draining soil, bright light or full sun. Water thoroughly when soil is dry to the touch. Looks best with regular watering in the hotter months.
Planting
From Early Summer TO Late Summer
'Cereus' typically don't like direct afternoon sunlight and should be in partial shade through the hottest hours. They can take direct sunlight in the morning and afternoons. A rich, fast-draining cactus mix is ideal. To plant, do this preferably during the warm season. To repot a cacti, make sure the soil is dry before repotting, then gently remove the pot. Knock away the old soil from the roots, making sure to remove any rotted or dead roots in the process. Treat any cuts with a fungicide. Place the plant in its new pot and backfill with potting soil, spreading the roots out as you repot. Leave the plant dry for a week or so, then begin to water lightly to reduce the risk of root rot.
Propagating by cuttings
From Late Spring TO Late Spring
'Cereus' are propagated from stem cuttings. Most cuttings require time to dry and produce a callus on the wound, this can take from a week to a day depending on size and type. Use John Innes No 1 with up to 30 percent by volume of added grit and keep the compost on the dry side to prevent the cutting rotting off. Always check what your individual specimen will require.
magorc
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