The Leaf Index
Vol. IA field guide to cannabis cultivarsleafly.cc
No. 0522Indica

London Purple

Purple Punch × Granddaddy Purple × Gelato × London Pound Cake

London Purple is a boutique indica cultivar recognized for its pronounced purple coloration and dessert-forward aroma. It is favored for its relaxing, evening-leaning effects, making it a popular choice in connoisseur circles.

EffectsRelaxing Calming Evening Use Body High
May help withStress
AromaBerryBlueberryGrapeCandyCreamVanillaFuelEarthyHops

Appearance

London Purple typically features medium-sized, conical colas with dense calyxes and a high calyx-to-leaf ratio. Under optimal conditions, its bracts display deep mauve and violet hues, sometimes with near-black accents late in flower, particularly on top-facing buds exposed to cooler night temperatures and strong light. The buds are heavily coated in glassy trichomes, often appearing sugar-coated, with sugar leaves sometimes exhibiting lavender tones.

Aroma & Flavor

This strain offers a dessert-forward bouquet dominated by sweet berry and grape notes, reminiscent of blackcurrant jam or blueberry syrup. Underlying these fruity top notes are hints of vanilla pastry or dough, suggesting influences from dessert-leaning genetics. Secondary aromas can include subtle petrol or rubber notes, alongside earthy undertones and a slight hop-like bitterness, contributing to a complex and appealing profile.

On inhalation, London Purple provides a smooth, creamy draw that emphasizes sweet berry and grape flavors. The mid-palate often reveals a layered sweetness akin to blackcurrant jam over pastry, balanced by a gentle peppery spice. Exhalation carries these sweet and fruity notes, creating a pleasant and lingering taste.

Effects

London Purple is known for delivering relaxing, evening-leaning effects. Its indica-dominant nature typically promotes a sense of calm and tranquility, making it suitable for unwinding after a long day. Consumers often report a gentle body high that can help ease tension without being overly sedating.

Terpenes & Cannabinoids

While specific lab data for London Purple is limited, its aroma and effect profile suggest a terpene composition rich in myrcene, caryophyllene, and linalool, with supporting notes of limonene and humulene. These terpenes contribute to its fruity, sweet, and slightly spicy aromatic qualities. The THC content typically ranges from 18-26%, with CBD levels below 1%, indicating a predominantly psychoactive experience.

Origins & Lineage

London Purple emerged in the mid-to-late 2010s, gaining popularity in UK and select European markets. While no definitive breeder or lineage is universally accepted, theories suggest it may be a cross involving classic purple strains like Purple Punch or Granddaddy Purple, combined with a modern dessert-oriented hybrid such as a Gelato derivative or London Pound Cake. Its name reflects its prominent purple coloration and its rise to prominence within the London cannabis scene.

Growing

London Purple is characterized by moderate internodal spacing and a medium stature, consistent with an indica-leaning hybrid. It exhibits high trichome density and produces resinous buds, indicating good potential for extracts. Achieving robust purple coloration often requires specific environmental conditions, such as cooler night temperatures during the later stages of flowering. Yields are generally considered moderate to good, typical for boutique cultivars.

Frequently asked questions

What is the THC content of London Purple?
The THC content of London Purple typically ranges from 18% to 26%.
What are the dominant flavors and aromas of London Purple?
London Purple is known for its dessert-forward profile, with dominant flavors and aromas of sweet berry, grape, and candy, often complemented by creamy and pastry-like notes.
Is London Purple an indica or sativa?
London Purple is classified as an indica-dominant hybrid.
What are the reported effects of London Purple?
Reported effects include relaxation, calmness, and a gentle body high, making it well-suited for evening use.