London Pound Cake Feminized — Rich Genetics, Ridiculous Yields

London Pound Cake is one of those strains that earns its reputation the honest way — through flavour, potency, and a growing experience that rewards patience. This is an indica-dominant hybrid carrying 20–25% THC, a terpene profile that leans hard into vanilla, berry, and citrus, and outdoor yields that can push 550–650 grams per plant when conditions are dialled in. It's the kind of strain that makes you stop mid-harvest and just appreciate what you're looking at.

At Plantation Premium Seeds, we carry London Pound Cake as a feminized photoperiod variety in a 5-seed pack — which means every seed in that pack is working toward a flowering plant, no males to weed out, no wasted space. Whether you're running a tidy indoor tent in Toronto or working with a full outdoor plot in the Okanagan, this strain has the genetics and the vigour to deliver. It's not the easiest strain you'll ever grow, but it's far from the hardest — and the end product makes the effort feel like a very reasonable trade.

What strains make up London Pound Cake?

London Pound Cake is a cross of Sunset Sherbet and an unknown indica. Sunset Sherbet brings the sweetness, the complex terpene layering, and a deeply relaxing body effect, while the mystery indica parent grounds the plant with structural stability and resin density.

Sunset Sherbet itself is a descendant of the legendary Girl Scout Cookies lineage, which traces back through OG Kush and Durban Poison — two of the most influential cultivars in modern cannabis breeding . That heritage shows up clearly in London Pound Cake's growth pattern: sturdy internodal spacing, dense bud structure, and a resin production that starts building early in flower and doesn't really stop.

The unknown indica parent is where things get interesting from a grower's perspective. In our experience running this strain, the indica influence expresses itself most clearly in the plant's height — it stays comfortably within the medium range (100–200 cm) rather than stretching into the canopy chaos you sometimes get from more sativa-leaning hybrids. It also contributes to the strain's characteristic tightness of bud, with calyxes stacking on top of each other in a way that makes trimming genuinely satisfying rather than a chore.

What you end up with is a plant that carries the flavour complexity of its Cookies ancestry alongside the structural reliability of a well-selected indica. That combination is exactly why London Pound Cake has become a go-to for growers who want both quality and consistency in the same run. If you're building a garden around indica dominant feminized seeds, this one belongs in the rotation.

What does London Pound Cake smell and taste like?

London Pound Cake smells exactly like its name suggests — sweet, baked, and a little indulgent. The dominant aroma is vanilla with a berry undertone, and there's a citrus brightness that keeps it from feeling heavy or cloying. Your neighbours might start asking questions around week six of flower.

The terpene profile driving all of this is built around four key compounds: Myrcene, Ocimene, Humulene, and Limonene. Myrcene is the dominant force here — it's the most common terpene found in cannabis and is associated with the earthy, musky base note that grounds the sweeter top notes . Limonene adds the citrus lift and contributes to the uplifting quality of the early effect. Ocimene brings a subtle herbal sweetness that you notice more during the cure than during the grow, and Humulene adds a faint earthiness that balances the whole profile.

On the palate, London Pound Cake delivers a smooth, dessert-forward smoke with vanilla and berry flavours that are genuinely distinct — not just 'sweet cannabis' but something with actual character. The exhale carries a light citrus finish that lingers pleasantly.

As for effects, this is an indica-dominant hybrid with 20–25% THC, so expect a high that starts with a warm, euphoric head effect before settling into a full-body relaxation . It's not a couch-lock strain in the aggressive sense, but it's also not something you'd reach for before a long hike. Evening use, creative unwinding, or simply enjoying a quiet night — that's where London Pound Cake lives.

How difficult is London Pound Cake to grow?

London Pound Cake is a moderately demanding strain — not a beginner trap, but well within reach for anyone who's run a photoperiod grow before. It responds well to structured environments, appreciates consistent feeding, and rewards growers who pay attention to canopy management.

This is a photoperiod feminized variety, which means it flowers in response to a light schedule change rather than automatically. Indoors, you'll flip to 12/12 when your plants have reached the size you want. Outdoors, flowering initiates naturally as day length shortens in late summer — in most of Canada, that puts harvest somewhere in October, which aligns well with the temperate and Mediterranean climates this strain is rated for. BC's Okanagan Valley, with its warm summers and dry falls, is genuinely ideal territory for running London Pound Cake outdoors.

The plant reaches a medium height of 100–200 cm, which gives you flexibility whether you're working in a 1.2m tent or an open outdoor plot. Indoors, most growers find it settles around the 120–150 cm mark with standard vegetative timing, which is manageable without aggressive topping. Outdoors with a longer veg period, it can push toward the upper end of that range — something to plan for if you're working in a greenhouse or a space with height constraints.

Feeding-wise, London Pound Cake is a moderate-to-heavy feeder during flower. We've seen this strain respond particularly well to a phosphorus boost in weeks 3–5 of flowering, which seems to accelerate the bud stacking that makes this variety so visually impressive at harvest. Keep an eye on calcium and magnesium levels too — the dense bud structure can sometimes mask early deficiency signs until they're more advanced than you'd like. Pairing your grow with cannabis nutrients guide will help you stay ahead of any issues.

For climate, temperate and Mediterranean conditions are the sweet spot. This strain doesn't love excessive humidity during late flower — the tight bud structure that makes it so appealing also makes it a candidate for botrytis if airflow is poor. Indoors, keep relative humidity below 50% once you're past week four of flower.

How long does London Pound Cake take to flower, and what yields can you expect?

London Pound Cake has a flowering time of 8–10 weeks from the flip to 12/12. Most phenotypes we've run finish closer to the 9-week mark, with the occasional pheno pushing to 10 weeks — worth the wait when you see the trichome density on those extra days.

Indoor yields come in at 450–550 grams per square metre under a well-managed canopy with adequate lighting. That's a strong return for an indica-dominant hybrid of this quality — you're not sacrificing yield for flavour here, which isn't always the case with dessert-forward strains. Outdoor plants are where this strain really opens up: 550–650 grams per plant is achievable in a full season with good soil preparation and adequate space for root development.

Trichome coverage on London Pound Cake is genuinely impressive by the time you're approaching harvest. The buds develop a thick, almost white coating of resin that makes them look frosted under any decent grow light. We've found that waiting until roughly 20–30% of trichomes have shifted from cloudy to amber gives the best balance between the strain's euphoric head effect and its body relaxation — harvest too early and you lose some of the depth that makes this strain worth growing.

What are the best training techniques for London Pound Cake?

London Pound Cake responds well to low-stress training (LST) and topping. Because it grows with a fairly even canopy naturally, a simple LST approach — bending and tying main branches outward during veg — can significantly increase your bud site count without stressing the plant. Topping once or twice during veg encourages a multi-cola structure that suits the strain's tendency to produce dense, uniform buds across the whole plant.

SCROG (Screen of Green) is another technique that works particularly well with this strain indoors. The medium height and sturdy branching make it easy to fill a screen evenly, and the resulting flat canopy maximises light penetration to every bud site. If you're running a 1.2m x 1.2m tent, two plants in a SCROG setup can comfortably fill the space and push toward the upper end of the indoor yield range.

How should you manage humidity when growing London Pound Cake?

Humidity management is probably the most important environmental factor with this strain. The dense bud structure is a double-edged sword — it's what gives you those impressive yields and that satisfying harvest, but it also creates pockets where moisture can accumulate if airflow is insufficient. Keep relative humidity in the 40–50% range during flowering, and make sure you have adequate circulation both above and below the canopy.

Outdoors in wetter climates — coastal BC, for example — consider a greenhouse or at minimum a rain cover for the final few weeks of flower. The strain is rated for temperate and Mediterranean climates, and it handles dry heat well, but extended wet periods in late September can cause problems if you're not monitoring closely.

For drying and curing, a slow cure makes a real difference with London Pound Cake. The vanilla and berry terpenes that define this strain's character develop and deepen over a proper cure — we're talking a minimum of four weeks in sealed jars with daily burping for the first two weeks . Rush the cure and you'll still have good cannabis, but you'll miss the full expression of what this strain is capable of. Check out our cannabis curing guide for a detailed walkthrough of the process.

One more tip worth mentioning: support your main colas in the final two weeks of flower. The buds get heavy — genuinely heavy — and without bamboo stakes or a trellis, you risk branch snap right when you're closest to harvest. It's a small thing that experienced growers do automatically, but it's caught more than a few first-time London Pound Cake growers off guard.

London Pound Cake is the kind of strain that justifies a dedicated grow. The genetics are solid, the terpene profile is genuinely impressive, and the yields — both indoors and out — are the kind of numbers that make the effort feel worthwhile. It's not a set-it-and-forget-it grow, but it's not a white-knuckle experience either. Give it consistent feeding, manage your humidity, and let it finish properly, and it will deliver.

What we keep coming back to with this strain is the combination of flavour and potency. A lot of high-THC strains sacrifice one for the other. London Pound Cake doesn't. The vanilla-berry-citrus profile is intact at 20–25% THC, and the effect is exactly what you want from a well-grown indica-dominant hybrid — present, relaxing, and genuinely enjoyable.

If you're ready to add it to your garden, PPS carries London Pound Cake feminized in a 5-seed pack. Browse our full range of feminized photoperiod seeds to build out your next run.