Alphabetical Plant Listing

Trichocereus pachanoi (San Pedro Cactus)

San Pedro Cactus


Fast-growing, Trichocereus pachanoi (San Pedro Cactus) is a large, multi-stemmed columnar cactus forming a small tree adorned with several branches. Up to 6 in. wide (15 cm), each columnar stem is pale green to blue-green when young, changing to dark green with age. They feature 4-8 rounded ribs with white areoles and few spines. In summer, very large, fragrant, trumpet-shaped, white flowers, 8 in. across (20 cm), bloom at night and remain open for the following day. They are produced from the spine clusters along the margins near the top of the branches. Easy to grow, San Pedro Cactus pups from the base, and is reported to be cold-hardy down to 10°F (-12°C) for short periods. Adding long-lasting beauty to the landscape, this eye-catching columnar cactus is planted worldwide in tropical climate gardens.

  • Grows up to 10-20 ft. tall (300-600 cm) and 5-6 ft. wide (150-180 cm). Vigorous, San Pedro Cactus can grow 12 in. (30 cm) per year.
  • Easily grown in fertile, well-drained soils in full sun. Appreciates light shade during hot summers as too much sun may burn the plant. Water regularly when in growth. Make sure you let the soil dry out between waterings. No water should ever be allowed to stand around the roots. Keep the plant dry in winter. Fertilize monthly with a balanced fertilizer during the growing season. Drought tolerant.
  • Great for desert gardens, rock gardens, succulent gardens or Mediterranean gardens.
  • Deer resistant.
  • Propagate by seed or stem cuttings.
  • Virtually pest and disease free. Susceptible to fungal diseases if over-watered.
  • Native to Peru, Ecuador, Bolivia and northern Argentina

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Requirements

Hardiness 8 – 10
Plant Type Cactus - Succulents
Exposure Full Sun
Season of Interest Spring (Early,Mid,Late)
Summer (Early,Mid,Late)
Fall
Winter
Height 10' – 20' (3m – 6m)
Spread 5' – 6' (150cm – 180cm)
Spacing 60" – 72" (150cm – 180cm)
Water Needs Low
Maintenance Low
Soil Type Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Showy, Evergreen
Tolerance Deer, Drought, Rabbit, Dry Soil, Rocky Soil
Garden Uses Beds and Borders
Garden Styles Gravel and Rock Garden, Mediterranean Garden

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Msscacti (Flickr)

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 8 – 10
Plant Type Cactus - Succulents
Exposure Full Sun
Season of Interest Spring (Early,Mid,Late)
Summer (Early,Mid,Late)
Fall
Winter
Height 10' – 20' (3m – 6m)
Spread 5' – 6' (150cm – 180cm)
Spacing 60" – 72" (150cm – 180cm)
Water Needs Low
Maintenance Low
Soil Type Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Showy, Evergreen
Tolerance Deer, Drought, Rabbit, Dry Soil, Rocky Soil
Garden Uses Beds and Borders
Garden Styles Gravel and Rock Garden, Mediterranean Garden

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