London Bubbly

London Bubbly is a limited-edition candy cultivar from TH Seeds, made by crossing London Mint Cake x Original BubbleGum. It’s available as feminised seeds and carries a balanced make-up of 55% sativa and 45% indica, so the appeal is not just the sweet-shop flavour. It also has a nicely split effect, starting with a brighter euphoric lift before easing into smoother physical relaxation.

The parent choice is the key bit here. London Mint Cake brings blueberry cream terpenes, while Original BubbleGum adds that well-known sweet bubblegum backbone. TH Seeds has framed this as a modern dessert-style cross built around one of the iconic sweet cannabis lines, and that comes through clearly in the flavour notes.

Blueberry cream, bubblegum and resin

The aroma and flavour sit firmly on the sweeter side: creamy blueberry, bubblegum, candy sweetness, soft fruit and light dessert notes. The breeder’s tasting description compares it to a blueberry bubblegum slushie from a candy shop, which is a fair way to picture the mix without making it sound sharp or gassy. After drying and curing, the blueberry cream side is expected to become more rounded while the bubblegum notes develop properly.

Resin production is one of London Bubbly’s stronger practical features. The flowers are described as dense and resin-coated, with high resin output and good terpene retention after a proper dry and cure. That makes it a natural fit for growers interested in flavour-led material for Ice-O-Lator, bubble hash, dry sift or rosin pressing, as well as anyone who simply wants sticky, aromatic flowers.

Growing notes

London Bubbly is listed as easy to moderate to grow, with a balanced hybrid structure, strong branching and a good flower-to-leaf ratio. Plants usually reach around 120–160 cm and are suitable for indoor or outdoor cultivation. During flowering, expect a moderate stretch rather than something wildly unmanageable.

It responds well to standard training. TH Seeds recommends topping once in vegetative growth, using LST to improve canopy exposure, and running it in SCROG setups if that suits the space. Keeping airflow through the canopy is advised, and larger flowering branches may need support once the buds put on weight.

Indoor yields are given at 500–600 g per square metre, with a flowering time of 55–60 days, or around 8–9 weeks. The suggested post-harvest routine is a 12–14 day dry followed by an additional 10–15 day cure, aimed at bringing out the creamy blueberry sweetness and fuller bubblegum finish.

The effect is balanced and sociable to start, with euphoric uplift, a positive mood and room for creative or relaxed use. As it settles, the body feel becomes calmer and more sedative. London Bubbly should suit fans of sweet blueberry and bubblegum profiles who want resin, flavour and a manageable hybrid structure rather than a plain high-yield workhorse.