MP Scop x Rosei 1 (Yearlings)

MP Scop:

CV. Rosei #1 (often referred to as 'Rosei 1') is a popular and historically significant clone of Trichocereus peruvianus (also known as Echinopsis peruviana). Here's a breakdown of what's known about it:
Origin and History: Australian Clone: Rosei #1 is an Australian clone that originated from the Fields Cactus Collection in Victoria, Australia.
Early Cactus Trading: Both Rosei #1 and its counterpart, Rosei #2, were brought to Australia in the early days of cactus trading.
Harry Blossfeld's Expedition: Mr. Fields, the owner of the collection, was a supporter of Harry Blossfeld's South America expedition, and it's believed he received these plants as a reward for his support. This suggests their ultimate origin is South America, likely Peru.
Matucana Connection: While the exact collection site isn't definitively known, Rosei #1 is highly likely to be a Trichocereus peruvianus from Matucana, Peru. It shows strong similarities to other known Matucana forms like the Icaro DNA strain and Sharxx Blue.
Community Distribution: SAB forum member PD played a crucial role in making the Rosei clones widely available to the Trichocereus community.
"Rosei" Name: The name "Rosei" itself was used in older cactus literature to refer to a certain very blue type of Trichocereus peruvianus or Echinopsis peruviana. It was applied to plants that are now often classified as Trichocereus macrogonus. The name persists in the horticultural trade for these specific clones. Characteristics: Appearance: Rosei #1 is known for being very blue and often has a glaucous (waxy, powdery) epidermis. Spines: It typically has shorter spines compared to Rosei #2, though environmental factors can influence spine length and color. Spines can range from yellow to dark brown, sometimes with black tips. Old spine growth often appears grey.
Thickness: It's often described as being extremely thick in columnar growth. Areoles: The areoles (where spines emerge) are covered with very fine, white wool. Variability: While these characteristics are typical, it's important to remember that the appearance of a Trichocereus can be significantly influenced by its growing environment (light, water, nutrients, temperature).
Taxonomy and Nomenclature: Commercial Variety: "Rosei #1" is a commercial variety or clone name, not an officially described botanical species.
Genus Debate: The debate over Trichocereus versus Echinopsis continues in the botanical community. While some botanists now classify these cacti under Echinopsis (e.g., Echinopsis peruviana), many hobbyists and growers still use the Trichocereus genus, especially for columnar species like San Pedro. Cultivation: Like most Trichocereus species, Rosei #1 is relatively easy to grow from cuttings or seed.
It requires good drainage and can be grown in greenhouses or conservatories in cooler climates.
In summary, CV. Rosei #1 is a highly sought-after and recognized Trichocereus peruvianus clone, valued for its striking blue coloration and historical connection to early Australian cactus collections.