The Succulent Source · Cactus field notes
Get to know
your cactus.
Species, unusual forms, and practical growing projects. Start with your plant, then explore light, watering, soil, winter protection, pests, and the details that make it distinctive.

Species guide
Pachanoi / San Pedro
The familiar San Pedro: care, seasons, hardiness, pests, and a good start for a plant or cutting.

Plant guide
Bridgesii
Slender columns, strong spines, and plenty of personality. Get to know Bridgesii, then build a care routine around its roots, your weather, and the plant in front of you.

Plant guide
Peruvianus
Blue-green columns, bold ribs, and a strong silhouette. Learn what makes the Peruvian torch distinctive—and how to give a rooted plant or new cutting a sensible start.

Plant guide
Monstrose & Crested
Fans, folds, lumps, and branching surprises. Learn the difference between unusual growth and a plant-health problem, then care for the species and form you actually have.

Plant guide
Hybrids
Color, shape, spines, and growth can all surprise you. Learn how to read a hybrid label and give an individual plant the conditions it needs.

Practical guide
Cuttings
From a dry callus to an established root system. Learn how to choose a cutting, keep it upright, and make the transition to normal cactus care.

Plant guide
Scopulicola
Substantial columns and a distinctive, often short-spined look. Get to know the plants sold as Scop, and keep their exact labels with them as they grow.

Plant guide
Cuzcoensis
Pronounced ribs and a bold spine profile make Cuzcoensis stand out in a collection. Start with its label, then make room for a well-rooted, well-supported plant.

Plant guide
Huanucoensis
Often collected for thick columns and a strong presence. Learn the nursery names behind the group, then give a heavy stem the roots and support it needs.

Plant guide
Chalaensis
A collector favorite for stem color, ribs, and notched-looking details. Learn how to establish Chalaensis and keep its identity separate from the hybrids that carry its name.

Practical guide
Grafting
Start with healthy stock, a compatible scion, and a clean working method. Learn what a graft does, how to align it, and what to watch during healing.
