Maipu x MT01 (Yearlings)

"Maipu": A Sought-After Cultivar of the San Pedro Cactus

The cactus cultivar CV "Maipu" is a notable and increasingly popular clone of the San Pedro cactus, scientifically known as Echinopsis Pachanoi (a species frequently still referred to by its former classification, Trichocereus Pachanoi). Its origins trace back to a specific nursery in Chile, and it is primarily recognized for its vigorous growth and use as a grafting stock.

Origin and Naming

The name "Maipu" is geographical, directly linked to its place of origin. It was first identified and distributed from a nursery named "Cactus Maipu," located in the Maipú commune of Santiago, Chile. This connection to a specific nursery is a key part of the cultivar's identity and history within the cactus collecting community. The subsequent appearance of names like "Maipu New Zealand Pachanoi" indicates the clone's circulation and cultivation by enthusiasts and nurseries in other parts of the world.

Botanical Identity

"Maipu" is not a distinct species but rather a specific genetic clone of Echinopsis Pachanoi. As a cultivar, it is propagated vegetatively, most commonly through cuttings, to ensure that the resulting plants are genetically identical to the parent. This practice maintains the specific traits of the "Maipu" clone.

Morphological Characteristics

While a precise and universally agreed-upon set of distinguishing morphological features for "Maipu" is not extensively documented in formal botanical literature, some characteristics are noted by growers and collectors. Generally, it exhibits the typical features of Echinopsis Pachanoi:

• Form: A columnar cactus that can grow quite tall, often with multiple branches from the base.

• Color: The stem is typically a shade of green, which can vary depending on growing conditions.

• Ribs: The number of ribs is consistent with the variable nature of the species, usually ranging from 6 to 8.

• Spines: Like many Echinopsis Pachanoi clones, the spine length and number can be variable. Some "Maipu" specimens may have short spines or be nearly spineless.

What truly sets "Maipu" apart for many in the horticultural community is its vigor. It is known to be a fast-growing and robust plant, which has led to its widespread use as a grafting stock. Cacti that are slow-growing, have weak root systems, or are otherwise difficult to cultivate on their own are often grafted onto a vigorous rootstock like "Maipu" to accelerate their growth.

Cultivation and Use

The cultivation of "Maipu" is similar to that of other San Pedro cacti. It thrives in well-draining soil and requires ample sunlight. As a vigorous grower, it may appreciate more frequent watering and feeding during its growing season compared to slower-growing cactus species.

In summary, the cactus CV "Maipu" is a significant cultivar of Echinopsis Pachanoi with a clear origin story tied to a Chilean nursery. While it shares the general characteristics of its species, it is particularly esteemed for its vigorous growth, making it a valuable plant for both collectors and for use as a reliable grafting stock. Its distinct identity is primarily rooted in its lineage and horticultural utility rather than a set of unique, formally described morphological traits.

Highly collectable and reminiscent of Ogun. Is Maipu the new Ogun? Sorta seems like it lately. It’s prettier than Ogun (better color IMO + smoother) but, who knows the full story behind it and why it fetches such high prices. If anyone wants to share information on this CV. I am interested in adding it to this description. This is a special plant. Please send any information on Maipu to seedgrowncacti@gmail.com.

CV. MT01 is a distinct and highly regarded clone of Trichocereus Pachanoi, commonly known as San Pedro cactus. It holds a significant place within the Trichocereus community due to its documented origin and specific characteristics.
Here's what is known about CV. MT01:
Origin:
MT01 is a landrace cultivar from Cajabamba, Peru. A landrace cultivar is a plant variety that has developed naturally over time through adaptation to local environmental conditions, rather than through intentional breeding or selection.
It was distributed worldwide by Manuel Terra (of Green Candy Genetics, formerly Aplantis). This makes him a key figure in its global circulation among enthusiasts.

The "MT" in its name likely stands for Manuel Terra.

Characteristics:
Species: It is explicitly identified as Trichocereus Pachanoi.

Coloration: It has a classic deep green color and can exhibit subtle notches.

Spines: MT01 is known for its thin yellow spines that grow in parallel and typically face downwards. These spines are inserted in white, medium-sized areoles.

Ribs: It generally has 6-7 ribs.

Growth: Like other Trichocereus pachanoi, it grows in a columnar shape, reaching significant heights (up to 6 meters or 20 feet in the wild). It's described as a vigorous grower.

Unique Features: The skin of MT01 is often described as having a "very fine and curvy" growth and can also exhibit a "notchy" appearance, where there are distinct indentations along the ribs. Some also note it has a "very textured and almost rough" skin.

Appearance Comparison: It has been noted to remind some growers of Ecuadorian pachanoi plants.

Cultivation and Use:
As a cultivated variety (CV.), it is primarily propagated through cuttings to preserve its specific genetic traits.
It is a popular and sought-after clone within the Trichocereus community.

Hybridization: MT01 is frequently used in breeding programs as a parent. For example, it is a parent in crosses like 'Rod' x 'MT01' and 'MT01' x 'BK08611.5', with breeders expecting "fantastic mutant offspring" from some of these crosses.

General Care: Like other Trichocereus, it requires well-drained soil, ample sunlight (full sun to partial shade, especially in hot climates), and moderate watering, allowing the soil to dry between waterings. It's relatively hardy, tolerating temperatures down to about -9°C (20°F) if kept dry.

In summary, CV. MT01 is a significant Trichocereus pachanoi clone originating from the Cajabamba region of Peru, introduced to the wider community by Manuel Terra. It's recognized for its deep green color, characteristic thin yellow spines, and often subtly notched or textured growth, making it a valuable and popular plant for both collectors and breeders.