Pilosocereus tillianus

Lagunillas cactus

Tropical olive-green columnar cactus perfect for a sunny window indoors. Outdoors in containers protected from winter rain.

Height6–10ft
Width2–3ft
ToleratesDrought, Heat, Pots
Water needsLow

Most cactus, like this one, are from the deserts of the world and as such like to go totally bone dry between waterings, making them very low-maintenance. If you see your cactus begin to shrivel or lose firmness, your cactus is likely totally dry and should be watered. To get good healthy growth your plant does not want to sit around totally dried out during its growing season. Once it is dry, water it.

This cactus comes from an area with seasonal rainfall and is actively growing during that warmer weather, when it is forgiving of overwatering errors. During winter dormancy it should be kept extra dry and won't tolerate overwatering.

Remember that if kept in a small pot your plant will want more frequent watering.

Hardy to28°F
ExposureFull Sun
Plant traitsCactus, Columnar, Rock Garden
Indoor / outdoorOutdoor
DrainageIn Ground: Cactus Mix, In Pots: Cactus Mix
FertilizingAll Purpose
OriginNW Venezuela
California nativeNo
Sunset zones13, 21–24, H2

Special Interest

Endangered in the wild, due to urban encroachment though it comes from a remote area of the Andes and it is possible that there are undiscovered populations.

The above information reflects the observations of Grubb and Nadler and our extended plant community. We always consider input from fellow horticulturists and welcome feedback from those with additional information on the culture of this plant.

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