Create Your Garden

Trichocereus pachanoi (San Pedro Cactus)

San Pedro Cactus, Echinopsis pachanoi, Cereus pachanoi

Trichocereus pachanoi, San Pedro Cactus, Columnar Cactus, Columnar Succulent

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

Requirements

Hardiness 8 - 10
Plant Type Cactus & Succulents
Plant Family Cactaceae
Common names San Pedro Cactus
Exposure Full Sun
Season of Interest Spring (Early, Mid, Late)
Summer (Early, Mid, Late)
Fall
Winter
Height 10' - 20'
(3m - 6.1m)
Spread 5' - 6'
(150cm - 180cm)
Spacing 60" - 72"
(150cm - 180cm)
Maintenance Low
Water Needs Low
Soil Type Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Showy, Evergreen
Tolerance Drought, Deer, Rabbit, Dry Soil, Rocky Soil
Garden Uses Beds And Borders
Garden Styles Gravel and Rock Garden, Mediterranean Garden
How Many Plants
Do I Need?

Recommended Companion Plants

Senecio mandraliscae (Blue Chalksticks)
Agave parryi var. truncata (Artichoke Agave)
Aloe cameronii (Red Aloe)
Phormium tenax (New Zealand Flax)

Find In One of Our Guides or Gardens

A Striking Water-Wise Border with Aloe, Cactus and Aeonium
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.
Buy Plants

Requirements

Hardiness 8 - 10
Plant Type Cactus & Succulents
Plant Family Cactaceae
Common names San Pedro Cactus
Exposure Full Sun
Season of Interest Spring (Early, Mid, Late)
Summer (Early, Mid, Late)
Fall
Winter
Height 10' - 20'
(3m - 6.1m)
Spread 5' - 6'
(150cm - 180cm)
Spacing 60" - 72"
(150cm - 180cm)
Maintenance Low
Water Needs Low
Soil Type Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Showy, Evergreen
Tolerance Drought, Deer, Rabbit, Dry Soil, Rocky Soil
Garden Uses Beds And Borders
Garden Styles Gravel and Rock Garden, Mediterranean Garden
How Many Plants
Do I Need?

Gardening Ideas

Plant Calculator

How many Trichocereus pachanoi (San Pedro Cactus) do I need for my garden?

Input your garden space dimensions

Your Shopping List

Plant Quantity
Trichocereus pachanoi (San Pedro Cactus) N/A Buy Plants

Please Login to Proceed

You Have Reached The Free Limit, Please Subscribe to Proceed

Subscribe to Gardenia

To create additional collections, you must be a paid member of Gardenia
  • Add as many plants as you wish
  • Create and save up to 25 garden collections
Become a Member

Plant Added Successfully

You have Reached Your Limit

To add more plants, you must be a paid member of our site Become a Member

Update Your Credit
Card Information

Cancel

Create a New Collection

Sign Up to Our Newsletter

    You have been subscribed successfully

    Join Gardenia.net

    Create a membership account to save your garden designs and to view them on any device.

    Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.

    Join now and start creating your dream garden!

    Join Gardenia.net

    Create a membership account to save your garden designs and to view them on any device.

    Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.

    Join now and start creating your dream garden!

    Find your Hardiness Zone

    Find your Heat Zone

    Find your Climate Zone