London Truffle
Breeder: Tiki Madman
London Truffle fuses the exotic earthy funk of White Truffle with the sweet grape-dough richness of London Pound Cake. Pushing past 30% THC with an unmistakable truffle-dough-gas terpene profile, it produces dense, heavily frosted buds with deep purple coloration — a premium bag-appeal strain for connoisseurs. London Truffle stands out among modern dessert hybrids for combining two of the most decorated lineages in contemporary cannabis — the resin-drenched, solventless-champion Truffle family with the polished sweetness of London Pound Cake — into a single, commercially viable package. Its minimal foliage and squat architecture make it notably less labor-intensive than many exotic cultivars, an advantage that has driven rapid adoption among commercial greenhouse operators in California's Emerald Triangle and Michigan's legacy market. Tiki Madman has since used London Truffle as breeding stock in further crosses, including Tiki Truffle (White Truffle x London Truffle), indicating the line's value as a foundation genetic in ongoing programs.
Lineage & Genetics
Cross: White Truffle x London Pound Cake
White Truffle is a Gorilla Butter phenotype (GG4 x Peanut Butter Breath) with rare savory-mushroom aroma and extreme trichome density. London Pound Cake (#75 cut, Cookies Fam) is a Sunset Sherbet descendant known for sweet grape-berry dough aromatics and sedative effects.
Terpene Profile
Caryophyllene — Peppery, earthy, fuel-forward gas; 0.5–1.0%
Limonene — Sweet dough and subtle citrus brightness; 0.3–0.6%
Myrcene — Deep earthy musk enhancing sedation; 0.3–0.6%
Linalool — Creamy doughy sweetness; 0.1–0.3%
Aroma: Pungent earthy truffle and fresh-baked dough with heavy fuel-gas undertones. Breaking buds releases savory mushroom funk layered over sweet grape pastry.
Flavor: Rich and savory on inhale with truffle-earth, sweet dough, and hints of grape candy. Gassy fuel exhale with creamy pastry finish.
Effects & Experience
Onset: Immediate heavy-lidded euphoria with a warm wave spreading from head down within 5 minutes.
Deeply sedating full-body relaxation that melts physical tension. High caryophyllene provides pronounced anti-inflammatory and analgesic sensations. Contented haze builds progressively.
Duration: 2.5–3.5 hours
Commonly Reported Uses
Grower's Notes
London Truffle, bred by Tiki Madman as a cross of White Truffle and London Pound Cake (LPC), is an indica-dominant hybrid (70/30) that has earned a reputation as a hardy, high-yielding commercial cultivar with exceptional bag appeal and solventless extraction potential. The Tiki Madman cut is the most widely documented version of this strain and should not be confused with "Trufflez," a separate Zkittlez x Cherry Noir cross that sometimes circulates under similar naming (Weedmaps). Nurseries distributing verified clones, including Prime Cuts Nursery, describe it as a squat, stocky plant with minimal foliage — traits that make it less labor-intensive than many modern exotics and particularly well-suited to greenhouse and SOG configurations (Prime Cuts Nursery).
GROWTH STRUCTURE AND STRETCH
London Truffle produces a compact, branchy frame with tight internodal spacing inherited from both parents. London Pound Cake contributes 3–5 cm internode gaps and strong lateral branching (JointCommerce LPC Guide; Strainpedia), while White Truffle adds a squat, bushy architecture with vigorous side shoots (Blimburn Seeds; CanAx Seeds). Growers report the plant roughly doubles in height during the flowering stretch — approximately 100% or 2x from flip — placing it in the medium-tall range at finish (Prime Cuts Nursery). The naturally tight structure responds exceptionally well to topping or FIMing at the 3rd–4th node during week 3–4 of veg, followed by LST to spread the canopy. A SCROG net with 15–20 cm cola spacing maximizes light penetration and airflow through the dense canopy (JointCommerce London Truffles Guide).
FLOWERING TIME AND HARVEST INDICATORS
Flowering runs 8–9 weeks for the verified Tiki Madman clone cut (Prime Cuts Nursery), though some seed-derived phenotypes or less-documented versions may push to 10 weeks (Dopeboo). Tiki Cuts, the breeder\'s own retail arm, lists a notably aggressive 6–8 week window, suggesting select phenotypes can finish early under optimized conditions. At harvest maturity, expect dense, triangle-shaped buds with dark olive-green calyxes, thick orange pistils, and a heavy blanket of chunky, blue-tinted white trichomes (AllBud). Check trichomes at day 56 onward; mostly cloudy with 10–15% amber heads marks the sweet spot for the balanced relaxation-plus-euphoria effect profile this strain is known for.
YIELD
Nursery sources consistently describe London Truffle\'s yield as "heavy" without publishing exact gram figures (Prime Cuts Nursery). Interpolating from both parents provides a reliable estimate: White Truffle yields 450–600 g/m² indoors and 600–850 g/plant outdoors (CanAx Seeds), while London Pound Cake delivers 400–650 g/m² indoors and 500–900 g/plant outdoors depending on the seed source (Fresh Bros; JointCommerce LPC Guide; Barney\'s Farm). London Truffle, inheriting the vigor and dense bud structure of both lines, realistically yields 450–600 g/m² indoors and 600–800 g/plant outdoors when trained and fed appropriately. SOG setups with untopped clones at high density can push the lower end higher by maximizing canopy fill.
NUTRIENT PREFERENCES
London Truffles responds well to moderate-to-high EC feeding. Target 1.6–1.8 EC (800–900 PPM on 500 scale) in late veg, 1.8–2.2 EC (900–1100 PPM) in mid-bloom, and taper to 1.2–1.4 EC (600–700 PPM) during the final ripening flush (JointCommerce London Truffles Guide). Calcium and magnesium supplementation is frequently necessary under high-intensity LEDs, especially in coco coir, as the Truffle line can show interveinal chlorosis and marginal necrosis when CalMag is insufficient. Tip burn at leaf edges signals you have reached the upper feeding limit — back EC down by 0.1–0.2 and monitor new growth. Truffle-line phenotypes are moderately hungry for potassium in mid-to-late flower to support oil and resin biosynthesis (JointCommerce London Truffles Guide). In soil or soilless mixes, maintain pH at 6.2–6.5; in hydro or coco, aim for 5.8–6.0. Transition from nitrogen-dominant feeding in veg to phosphorus-potassium-heavy regimens at flip.
PREFERRED GROWING MEDIA
London Truffle performs well across substrates. In living soil or amended super-soil, it benefits from the microbial diversity that supports its complex terpene expression, though growers sacrifice some control over feed precision. Coco coir is the preferred commercial medium for this strain — its oxygenation and dry-back control suit the Truffle line\'s preference for well-aerated roots, and the ability to dial EC precisely in fertigation helps manage its moderate-to-heavy feeding appetite. Rockwool and DWC hydro can push yields higher but demand strict pH management and increase botrytis risk around the dense colas if humidity isn\'t controlled. For greenhouse runs, where London Truffle particularly excels per breeder notes, a 70/30 coco-perlite blend with drip irrigation provides the ideal balance of oxygenation, drainage, and feed control (Prime Cuts Nursery; JointCommerce London Truffles Guide).
ENVIRONMENT
INDOOR, OUTDOOR, GREENHOUSE, LIGHT-DEP: Indoors, target 24–28°C (75–82°F) canopy temperature with lights on and a 3–4°C (5–7°F) night drop. Maintain VPD around 0.8–1.2 kPa in veg and 1.2–1.5 kPa in flower. Decrease relative humidity from 55% in veg to 45% in early bloom and 40% in late bloom to prevent mold in the dense flowers (JointCommerce London Truffles Guide). Outdoors, the strain thrives in Mediterranean climates and finishes by mid-October in the Northern Hemisphere. Its squat, hardy frame handles wind and moderate stress well, making it a strong outdoor and greenhouse performer — the breeder specifically recommends it for greenhouse and outdoor runs (Prime Cuts Nursery). Light-dep setups work naturally with this strain\'s 8–9 week flower time, allowing multiple outdoor cycles per season in appropriate climates.
LIGHT
PPFD, DLI, AND CO2 RESPONSE: LED PPFD targets of 400–600 µmol/m²/s during veg and 800–1000 µmol/m²/s in bloom support dense bud formation, corresponding to DLI of roughly 30–40 mol/m²/day in veg and 40–60 mol/m²/day in flower. With supplemental CO2 at 800–1200 ppm, advanced growers can push PPFD to 1200–1400 µmol/m²/s if irrigation and nutrition are dialed to match the increased metabolic demand. Without CO2 enrichment, stay below 1000 PPFD to avoid light stress and nutrient imbalances (JointCommerce London Truffles Guide). HPS at 600–1000W is also effective, though LEDs are preferred for the cooler canopy temperatures that benefit the strain\'s anthocyanin expression and resin preservation.
COLOR AND ANTHOCYANIN EXPRESSION
London Truffle is among the most profoundly purple cultivars commercially available. Weedmaps describes it as a "highly purple plant, which can develop some of the most profoundly purple foliage you\'ll ever encounter." The purple expression is genetically encoded from both parents — White Truffle develops deep purple to near-black hues under cool conditions (Blimburn Seeds; Leafly), and London Pound Cake shows purple streaks under cooler room temperatures (JointCommerce LPC Guide). In London Truffle, color intensifies dramatically when nighttime temperatures drop to 15–18°C (59–65°F) during the final 2–3 weeks of flower, triggering anthocyanin accumulation via the phenylpropanoid pathway as chlorophyll recedes (Kalix CPN). However, many growers report significant purple expression even without deliberate cold manipulation, indicating strong genetic predisposition in this cross. The foliage, bracts, and even trichome stalks can turn deep violet to nearly black in well-expressed phenotypes (AllBud; Bulk Buddy).
BUD STRUCTURE
Buds are dense, triangle-shaped (spade-like), with heavy calyx stacking and tight internodal development (AllBud; JointCommerce London Truffles Guide). The Truffle-line inheritance gives them a characteristically chunky, rock-hard density coated in a thick blanket of bulbous-headed trichomes with a blue-white tint. Foxtailing tendency is low in this strain; the indica dominance produces compact, uniform colas rather than the airy, stacked-calyx structures typical of sativa-leaning foxtailers. Bud size ranges from medium to large depending on training — topped and SCROG\'d plants produce multiple uniform colas rather than one oversized terminal bud.
PEST AND DISEASE RESISTANCE
The dense bud structure is London Truffle\'s primary vulnerability. Like both parents, the tight, resin-heavy colas create interior microclimates where moisture can accumulate, elevating botrytis (bud rot) risk significantly after week 6 of flower if airflow and humidity are not managed aggressively (JointCommerce London Truffles Guide; Dopeboo). Powdery mildew susceptibility appears moderate — no documented PM resistance genes have been identified in the Truffle or LPC lineages, and the dense canopy architecture demands preventative IPM protocols including beneficial mites (Neoseiulus californicus, Amblyseius swirskii), Beauveria bassiana sprays in veg, and consistent 0.5–0.8 m/s airflow across the canopy (JointCommerce LPC Guide). On hermaphrodite stability, the Tiki Madman clone cut is widely reported as stable when environmental conditions are maintained — no widespread hermie reports exist in nursery or grower community documentation. However, as with all modern hybrids, significant light stress, heat spikes above 32°C, or light leaks during dark periods can induce intersex traits. Maintain strict environmental controls to preserve genetic integrity.
WASH DATA AND EXTRACTION
London Truffle\'s parentage makes it an elite extraction candidate. White Truffle is considered one of the finest cultivars for solventless rosin production, with wash returns regularly exceeding 4–5% on fresh-frozen material and the resulting rosin capturing the distinctive earthy-nutty profile with exceptional clarity (White Widow Seed Bank; Emerald Cup 2022 recognition). The Truffle family broadly reports 4–6% fresh-frozen-to-live-rosin yields under optimized conditions (JointCommerce Truffles Guide). London Truffle\'s heavy trichome coverage extending well beyond the calyxes onto sugar leaves, combined with its high total terpene content (1.8–3.4%), positions it firmly in the premium wash tier. Growers targeting hash should harvest at peak trichome maturity (mostly cloudy, minimal amber) and process as fresh-frozen for maximum return. Rosin pressed from London Truffle bubble hash typically presents as an opaque, cake-batter texture with a pastry-forward terpene plume (JointCommerce London Truffles Guide). Press at 155–165°F for 90–120 seconds to balance yield (55–65% of hash weight) with terpene preservation (The Press Club; Mood).
DRYING AND CURING
The dense bud structure demands a slow, controlled dry to prevent case-hardening (crisp exterior trapping moisture inside) and to preserve the complex terpene profile. Target 15–18°C (59–65°F) at 55–60% RH for 10–14 days in a dark room with gentle airflow — never point fans directly at the buds. The strain\'s dominant terpenes, beta-caryophyllene and limonene, are relatively volatile; excessive heat or rapid drying will strip the dessert-sweet top notes and leave only the earthy base. After stems snap cleanly, cure in sealed glass jars at 58–62% RH (use humidity packs) for a minimum of 2–3 weeks, burping daily for the first week. White Truffle parent genetics specifically benefit from extended cure — the earthy-gas and nutty-chocolate notes deepen considerably at 4–6 weeks (CanAx Seeds). The same applies to London Truffle: patience in the cure rewards the grower with the full cherry-chocolate-diesel aromatic complexity this strain is known for.
History & Origin
Developed by Tiki Madman combining two of the most sought-after modern genetics. His tissue-culture-based breeding program ensures pathogen-free stock, distributed through authorized nurseries including Prime Cuts.
Frequently Asked Questions
5 common questions about London Truffle
What is London Truffle and what are its genetics?
London Truffle is a indica cannabis strain (70% Indica / 30% Sativa) bred by Tiki Madman. It is a cross of White Truffle x London Pound Cake, testing at 30%+ THC. London Truffle fuses the exotic earthy funk of White Truffle with the sweet grape-dough richness of London Pound Cake. Pushing past 30% THC with an unmistakable truffle-dough-gas terpene profile, it produces dense, heavily frosted buds with deep purple coloration — a premium bag-appeal strain for connoisseurs.
What does London Truffle smell and taste like?
London Truffle's dominant terpenes are Caryophyllene, Limonene. The aroma is described as pungent earthy truffle and fresh-baked dough with heavy fuel-gas undertones. breaking buds releases savory mushroom funk layered over sweet grape pastry.. The flavor profile features rich and savory on inhale with truffle-earth, sweet dough, and hints of grape candy. gassy fuel exhale with creamy pastry finish..
What are the effects of London Truffle?
Immediate heavy-lidded euphoria with a warm wave spreading from head down within 5 minutes. Deeply sedating full-body relaxation that melts physical tension. High caryophyllene provides pronounced anti-inflammatory and analgesic sensations. Duration is typically 2.5–3.5 hours. Commonly reported uses include Chronic pain, Severe insomnia, Stress relief, Appetite stimulation.
How hard is London Truffle to grow?
London Truffle is rated moderate difficulty. It flowers in 8–9 weeks, reaches medium-tall (4-6 ft indoor) in height, and yields 450–600 g/m² indoors. Best suited for indoor, greenhouse, outdoor environments.
What are the parent strains of London Truffle?
London Truffle is a cross of White Truffle and London Pound Cake. White Truffle is a Gorilla Butter phenotype (GG4 x Peanut Butter Breath) with rare savory-mushroom aroma and extreme trichome density. London Pound Cake (#75 cut, Cookies Fam) is a Sunset Sherbet descendant known for sweet grape-berry dough aromatics and sedative effects..
Sources & References (30)
- Grower's Notes cultivation sources:
- Weedmaps — London Truffle strain information and lineage clarification — https://weedmaps.com/strains/london-truffle
- Prime Cuts Nursery — London Truffle strain page with cultivation notes — https://www.primecutsnursery.com/london-truffle-strain
- Prime Cuts Nursery — Tiki Madman Genetics breeder page — https://www.primecutsnursery.com/tiki-madman-genetics-cannabis
- AllBud — London Truffle strain information and bud description — https://www.allbud.com/marijuana-strains/indica-dominant-hybrid/london-truffle
- Dopeboo — London Truffle strain guide: origin, characteristics, cultivation tips — https://dopeboo.com/blogs/guide/london-truffle-strain-guide-origin-characteristics-and-effects/
- JointCommerce — London Truffles comprehensive strain guide (cultivation, terpenes, chemistry) — https://app.jointcommerce.com/blog/category/cannabis-101/london-truffles-strain-a-comprehensive-strain-guide/
- JointCommerce — London Pound Cake comprehensive strain guide (parent genetics) — https://app.jointcommerce.com/blog/category/cannabis-101/london-pound-cake-by-zamnesia-a-comprehensive-strain-guide/
- JointCommerce — Truffles family strain guide (wash data, terpene archetypes) — https://app.jointcommerce.com/blog/category/cannabis-101/truffles-strain-a-comprehensive-strain-guide/
- Bulk Buddy — London Truffle dispensary listing with bud description — https://www.bulkbuddy.co/product/london-truffle-strain/
- The Clone Conservatory — London Truffle strain page — https://thecloneconservatory.com/strain/indica-strain/london-truffle/
- Tiki Cuts — London Truffle product page (breeder retail, flowering time) — https://tikicuts.com/product/london-truffle/
- North Atlantic Seed Co — Tiki Truffle feminized seeds (London Truffle as parent) — https://www.northatlanticseed.com/product/tiki-truffle-f/
- Tiki Madman official — Strain catalog — https://tikimadman.com/strains/
- GrowDiaries — Tiki Madman breeder profile — https://growdiaries.com/seedbank/tiki-madman
- Blimburn Seeds — How to Grow White Truffle (parent strain cultivation guide) — https://blimburnseeds.com/blog/marijuana-crop-guide/how-to-grow-white-truffle-weed-strain/
- CanAx Seeds — White Truffle feminized seeds grow data (parent strain yield, flowering, rosin) — https://canaxseeds.com/feminized-seeds/white-truffle/
- White Widow Seed Bank — White Truffle seeds (Emerald Cup, wash return data) — https://whitewidowseedsbank.com/white-truffle-seeds/
- Leafly — White Truffle strain information — https://www.leafly.com/strains/white-truffle
- Grow with Jane — White Truffle strain profile by Parabellum Genetics — https://growithjane.com/strain/white-truffle
- Fresh Bros — London Pound Cake strain review and growing guide (parent) — https://freshbros.com/london-pound-cake-strain-review-london-poundcake-cannabis-strain/
- Strainpedia — London Pound Cake strain profile (parent) — https://www.strainpedia.com/london-pound-cake/
- Barney's Farm via Pevgrow — London Pound Cake F1 seed data (parent yield stats) — https://pevgrow.com/en/seeds-london-pound-cake-barneys-farm.html
- HypnoSeeds — London Pound Cake week-by-week grow guide (parent) — https://hypnoseeds.com/the-blog/how-to-grow-london-pound-cake-strain-2025-grow-diary/
- Kalix CPN — The Science of Purple: Anthocyanins in Cannabis Cultivation — https://www.kalixcpn.com/blogs/kalix-cpn-presents/the-science-of-purple-unlocking-anthocyanins-in-cannabis-cultivation
- The Press Club — Average Bubble Hash Washing Yields — https://thepressclub.co/blogs/tips-tricks/average-bubble-hash-washing-yields
- Mood — Hash Yield Optimization (temperature and press data) — https://mood.com/blog/hash-yield-optimization
- SeedFinder — Devil Driver by Tiki Madman (breeder cross reference) — https://seedfinder.eu/en/strain-info/devil-driver/tiki-madman
- Cannabis Cup Winners — Emerald Cup 2022 awards list (White Truffle context) — https://cannabiscupwinners.com/blog/2022/05/20/emerald-cup-awards-2022/
- Newspost UK — London Truffle strain cultivation conditions — https://newspost.uk/london-truffle-strain-discover-its-unique-flavours-and-benefits
Want to Grow London Truffle?
Check our genetics menu for available clones or call us to discuss your growing needs.