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October giveaway: win my SS02 mother plant. Free to enter, ends October 31. No purchase necessary; see the rules. Enter freeSee the Yard

San Marcos seal. Plain ring.

Other Trichocereus

San Marcos

Other TrichocereusNamed clone: One original plant and every cutting taken from it, given a name by a grower.

At a glance

In the yard

Not in the yardAsk if you are after one

Where it comes from

Reportedly grown from Chavin Herbalists seed out of Peru, several from the supplier's 2022 batch, the seed collection being placed in the Santa Valley.

Drawing of two plain Trichocereus columns of different heights, standing for the wider genus rather than one plant.
A Trichocereus column, drawn — not a photograph of this plant.

Every photo shows another grower how this one really grows. Thank you.

Have a photograph of San Marcos? It goes on this page only if you say it can.
Add a photo or a note

Accepted photos earn entries in this month’s giveaway when you add your email address on the form, and only people on the offers list can win. No purchase necessary. You can also enter free, with no photo, and it counts the same. 18 or older and a legal resident of the lower 48 United States, not Rhode Island or Washington, DC; the rules say the rest. Official rules and the free way in

More Trichocereus names.

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