Watermelon Weddingcake Auto is Growers Choice’s Double XL autoflower from Wedding Cake x Watermelon Zkittlez. Double XL is the breeder’s high-yield auto line, and this cross immediately caught their attention with what they call a real wow factor.
Wedding Cake contributes sweet bakery depth and dense, frosty buds, while Watermelon Zkittlez brings juicy fruit terpenes and candy sweetness. The genetics lean 30% Indica / 70% Sativa with 27–30% THC and low CBD.
This is the tallest plant in the series, reaching 110–160 cm (43–63 in) indoors and 100–130 cm (39–51 in) outdoors. Expect big, bushy plants loaded with shiny buds and indoor yields of 450–550 g/m² (1.47–1.80 oz/ft²).
Hard, dense buds with high mold resistance and tolerance of both warm and cold climates make it a reliable grower, finishing in about 11 weeks from seed.
Flavor and Effects: Deliciously Fruity
Growers Choice puts it plainly: fruity, deliciously fruity. Ripe watermelon and mixed candy fruit from Zkittlez lead, with a sweet, doughy Wedding Cake base underneath. It tastes like a slice of chilled watermelon dipped in powdered sugar.
The terpene-rich aroma fills the grow space in late bloom and carries straight through into the cured flower.
With a 70% sativa lean, the effect tends to be bright and energetic. Expect an upbeat, euphoric head high that keeps you social and active, with Wedding Cake adding a smooth, relaxed undertone so it never feels edgy.
At 27–30% THC it is plenty strong, so start low if your tolerance is modest.
Growing Watermelon Weddingcake Auto
Thanks to its sativa influence, Growers Choice recommends it for both Sea of Green (SOG) and Screen of Green (SCROG) setups. Start in a final pot of at least 15 liters and keep 18/6 or 20/4 light from germination to harvest; flowering begins automatically.
Indoors, plan for a final height of up to 160 cm (63 in). A SCROG net or steady LST in weeks two to four keeps the tops level and spreads the dense buds evenly. For SOG, run several smaller pots close together and let each plant form one heavy cola.
Its hard, dense buds stay remarkably mold resistant, and the plant handles warm and cold climates. Outdoors it stays at 100–130 cm (39–51 in), so it fits most gardens while still delivering a generous harvest.
Because it stretches more than most autos in early bloom, place indoor lights a little higher than usual and raise them as the plant grows, keeping a steady distance from the tops to avoid light stress.
Watermelon Weddingcake Auto Characteristics
| Strain type | Autoflowering (feminized), Double XL high-yield version |
| Genetics | Wedding Cake x Watermelon Zkittlez |
| Indica/Sativa | 30% Indica / 70% Sativa |
| THC | 27–30% |
| CBD | Low |
| Effect | Upbeat, euphoric, energetic with a smooth finish |
| Flavor | Deliciously fruity: watermelon, candy, sweet cake |
| Indoor yield | 450–550 g/m² (1.47–1.80 oz/ft²) |
| Seed to harvest | About 11 weeks |
| Height | Indoor 110–160 cm (43–63 in); outdoor 100–130 cm (39–51 in) |
| Climate | Warm and cold climates |
| Mold resistance | High |
| Best cultivation technique | SCROG or SOG |
FAQ
What are the parents of Watermelon Weddingcake Auto?
It is Growers Choice’s Double XL autoflower from Wedding Cake x Watermelon Zkittlez.
Is Watermelon Weddingcake Auto Indica or Sativa?
It is sativa-dominant: 70% Sativa and 30% Indica.
How strong is Watermelon Weddingcake Auto?
THC is listed at 27–30%, with low CBD.
How tall does Watermelon Weddingcake Auto grow?
Indoors 110–160 cm (43–63 in) and outdoors 100–130 cm (39–51 in), making it one of the taller autos in the range.
Which growing technique suits it?
The breeder recommends SOG and SCROG, thanks to its sativa-influenced structure.
How much does Watermelon Weddingcake Auto yield?
Indoor yields are listed at 450–550 g/m² (1.47–1.80 oz/ft²), in about 11 weeks from seed.
