Lophophora williamsii var. San Tiburcio Cactus Seeds

Lophophora williamsii var. San Tiburcio is a sought-after locality form originating from the San Tiburcio area of San Luis Potosí, Mexico. Among collectors, locality forms are valued for preserving the natural characteristics associated with specific wild populations, making this variety an excellent choice for enthusiasts who appreciate botanical diversity within the species.

Like other forms of Lophophora williamsii, the San Tiburcio variety develops a smooth, spineless body with broad, rounded ribs divided into soft tubercles. The epidermis typically displays attractive shades of blue-green, gray-green, or glaucous green with a subtle matte finish that complements its clean, symmetrical appearance.

As the plant matures, it gradually develops into a low, button-shaped cactus with a dense woolly crown at its center. Older specimens may slowly produce offsets, forming compact clusters over many years. Every seed-grown plant develops its own subtle variation in rib pattern, body shape, and coloration while retaining the defining features of this locality form.

During the growing season, mature plants produce delicate pale pink to soft pink flowers that emerge from the woolly crown. After successful pollination, slender pink fruits may develop, each containing numerous tiny black seeds.

Growing Lophophora williamsii var. San Tiburcio from seed is a rewarding experience for collectors who appreciate slow-growing cacti and locality-specific forms that reflect the diversity of Mexico’s desert flora.

Why Grow Lophophora williamsii var. San Tiburcio?

Rare Mexican Locality Form

Collected and appreciated for its origin in the San Tiburcio region of San Luis Potosí.

Smooth Spineless Body

Develops the classic rounded form and soft blue-green coloration associated with Lophophora williamsii.

Excellent Collector Plant

A desirable addition for enthusiasts building collections of documented locality forms.

Key Features

Blue-Green Epidermis

Displays attractive glaucous tones that become more pronounced as the plant matures.

Compact Growth Habit

Ideal for collector pots, greenhouse collections, and bright indoor growing.

Long-Lived Species

With proper care, this slow-growing cactus can thrive for decades and become an impressive specimen.

Growing Guide

Seed Germination

Sow seeds on the surface of a sterile, fast-draining cactus seed mix. Maintain temperatures between 24°C and 30°C with bright indirect light and consistent humidity until germination.

Watering

Keep the growing medium lightly moist during germination. After seedlings become established, allow the soil to dry between waterings and reduce watering during cooler periods.

Soil and Containers

Use a mineral-rich cactus soil mix with excellent drainage. Containers with drainage holes help maintain healthy root systems.

Perfect for Every Collection

Locality Form Collectors

An outstanding choice for enthusiasts interested in geographically distinct Lophophora williamsii populations.

Rare Cactus Collections

Pairs beautifully with Ariocarpus, Astrophytum, Turbinicarpus, and other slow-growing desert cacti.

Indoor and Greenhouse Growing

Its compact size makes it ideal for bright windowsills, conservatories, and greenhouse collections.

Frequently Asked Questions

What is the San Tiburcio form?

It is a locality form of Lophophora williamsii associated with the San Tiburcio region of San Luis Potosí, Mexico.

Does it produce flowers?

Yes. Mature plants typically produce delicate pale pink flowers during the growing season.

Is it slow growing?

Yes. Like all Lophophora williamsii forms, it develops slowly but can live for many decades.

Can it be grown indoors?

Yes. It performs well indoors with bright light, excellent drainage, and careful watering.

What soil is best?

A fast-draining, mineral-rich cactus soil mix is ideal for healthy growth.