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Echinopsis macrogona (San Pedro cactus)
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1 hour care
per year
per year
5m
Max height
Max height
3m
Max spread
Max spread
10-20 years
To maturity
To maturity
Low
Toxicity
Toxicity
Plant details
Botanical name
Echinopsis macrogona
Other names
Trichocereus macrogonus, Cereus macrogona, Trichocereus macrogona, Trichocereus glaucus, Trichocereus glauca, Echinopsis glaucus, Echinopsis glauca, San Pedro cactus, Cereus macrogonus
Genus
Echinopsis Echinopsis
Species
E. macrogona - E. macrogona is a tender, upright, branching, perennial cactus with columnar, spiny, blue-green stems. Cup-shaped, white flowers in summer are followed by glossy, spherical, segmented, black or dark brown fruit.
Echinopsis macrogona is: Evergreen
Habit
Spiky, Erect
Toxicity
Plant has spines; use extreme caution when handling.
Flower
White in Summer
How to care
Watch out for
Specific pests
Mealybugs Mealybugs
Diseases
Generally disease-free
General care
Propagation
Sow seed at 21C (70F) in spring.
Propagation methods
Stem segments, Seed
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Where to grow
Echinopsis macrogona (San Pedro cactus) will reach a height of 5m and a spread of 3m after 10-20 years.
Suggested uses
Rock, Indoor, Gravel, Drought Tolerant, Containers, Conservatory
Cultivation
In frost-free areas, grow in moderately fertile, sharply drained soil in sun. Avoid excessive winter wet. Under glass, grow in cactus compost in full light. In spring and summer, water moderately & feed a nitrogen- and potassium-based fertiliser monthly.
Soil type
Sandy, Loamy
Soil drainage
Well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Full Sun
Aspect
South, West
Exposure
Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Tender in frost (H3), Indoor heated (H1)
Companion plants
We do not currently have companion plants added for this plant.
Botanical name
Echinopsis macrogona
Other names
Trichocereus macrogonus, Cereus macrogona, Trichocereus macrogona, Trichocereus glaucus, Trichocereus glauca, Echinopsis glaucus, Echinopsis glauca, San Pedro cactus, Cereus macrogonus
Genus
Echinopsis Echinopsis
Species
E. macrogona - E. macrogona is a tender, upright, branching, perennial cactus with columnar, spiny, blue-green stems. Cup-shaped, white flowers in summer are followed by glossy, spherical, segmented, black or dark brown fruit.
Native to
Argentina, Bolivia
Foliage
Evergreen
Habit
Spiky, Erect
Toxicity
Plant has spines; use extreme caution when handling.
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Colour
Flower
White in Summer
How to care
Watch out for
Specific pests
Diseases
Generally disease-free
General care
Propagation
Sow seed at 21C (70F) in spring.
Propagation methods
Stem segments, Seed
Monthly care advice
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Where to grow
Echinopsis macrogona (San Pedro cactus) will reach a height of 5m and a spread of 3m after 10-20 years.
Suggested uses
Rock, Indoor, Gravel, Drought Tolerant, Containers, Conservatory
Cultivation
In frost-free areas, grow in moderately fertile, sharply drained soil in sun. Avoid excessive winter wet. Under glass, grow in cactus compost in full light. In spring and summer, water moderately & feed a nitrogen- and potassium-based fertiliser monthly.
Soil type
Sandy, Loamy
Soil drainage
Well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Full Sun
Aspect
South, West
Exposure
Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Tender in frost (H3), Indoor heated (H1)
USDA zones
Zone 11, Zone 10
In order to add a note on this plant, please add this plant to your plant lists.
| This plant likes... | Garden match | |
| Soil types: | Sandy, Loamy | Tell us... |
| Soil drainage: | Well-drained | Tell us... |
| Soil pH: | Acid, Alkaline, Neutral | Tell us... |
| Light: | Full Sun | Tell us... |
| Aspect: | South, West | Tell us... |
| Exposure: | Sheltered | Tell us... |
| Hardiness: | Tender in frost (H3), Indoor heated (H1) | Tell us... |
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