Watermelon by Royal Queen Seeds

Some strains get their name from a vague hint in the aroma. Watermelon is not one of them. Break open a cured nug and the scent is unmistakably fruity, like a slice of chilled melon on a hot July afternoon. Royal Queen Seeds built this feminized photoperiod on a carefully selected Watermelon OG S1 line, then refined it into one of the most fruit-forward varieties in its catalog.

With an 80% indica / 20% sativa genetic split and THC levels reaching up to 22%, Watermelon is not a subtle smoke. It is designed for the end of the day, when the to-do list is done and the couch is calling. The buds come out of the dry room glittering with trichomes, and the resin carries that sweet melon character straight into the jar.

In the grow room, Watermelon keeps things practical. Indoor plants typically finish at 3 to 4 feet (90–120 cm), and flowering wraps up in roughly 50–55 days, or about 7 to 8 weeks. That is fast for such a dense, resinous indica, and it makes this strain a smart pick for growers who want quality without a long wait.

Outdoors, she stretches to 5 to 7 feet (150–215 cm) and is ready to chop in October. Because she copes with shorter summers, she is a realistic option for gardeners in cooler northern states who need a crop finished before autumn weather turns.

Flavor and Effects: Summer Fruit With a Heavy Finish

The terpene profile is where Watermelon really shows off. The inhale is sweet, juicy, and unmistakably melon, with a light layer of mixed fruit underneath. The exhale stays smooth and sugary rather than harsh, which makes this a pleasant joint for anyone who prefers flavor over fuel. That fruit-candy character also makes the flowers a natural fit for homemade sweet edibles.

The high starts gently in the head with a warm, euphoric lift, then gradually settles into the body. Within half an hour, most smokers feel loose, heavy limbs and a strong urge to stay put. Expect a solid case of the munchies and a mood that leans toward slow conversation and good music rather than productivity.

Royal Queen Seeds lists the effect as calming, physically relaxing, and sleepy, and that is an honest summary. Watermelon is a strain for lazy evenings, movie marathons, and weekends with nowhere to be. Keep your schedule clear before sparking up a second bowl.

Growing Watermelon Feminized Seeds

Because every seed is feminized, you can skip sexing and focus all of your space on productive plants. Indoors, Watermelon rewards a little structure: low-stress training (LST) keeps the main cola from towering over the side branches, and a SCROG net helps spread the canopy evenly under the light. Growers who dial in their environment can expect 16 to 19 oz/m² (450–540 g/m²).

Outdoors, each plant can return 16 to 18 oz (450–510 g) of dense, fruity flowers. Plant in rich, well-draining soil, give her as much direct sun as possible, and keep an eye on humidity during the final weeks, as tight indica colas appreciate good airflow.

Watermelon is a forgiving plant that does not demand advanced skills. A steady feeding schedule, a stable environment, and an efficient carbon filter for that sweet late-flower aroma are all she really needs to deliver.

Watermelon Characteristics

Strain type	Feminized photoperiod
Genetics	Watermelon OG S1
Indica/Sativa	80% Indica / 20% Sativa
THC	Up to 22%
CBD	Low
Effect	Calming, Physically Relaxing, Sleepy
Flavor	Fruity, Watermelon
Indoor yield	16 to 19 oz/m² (450–540 g/m²)
Outdoor yield	16 to 18 oz/plant (450–510 g/plant)
Flowering time	50–55 days (about 7 to 8 weeks) indoors
Outdoor harvest	October
Height	Indoors 3 to 4 feet (90–120 cm); outdoors 5 to 7 feet (150–215 cm)
Climate	Copes with regions that have shorter summers
Best cultivation technique	LST and SCROG to keep the canopy even and productive

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