Platinum Mimosa Auto is one of Growers Choice’s high-yield Double XL autoflowers, sold by the breeder as Platinum Mimosa Cookies Double XL. It crosses Platinum Cookies with Mimosa, pairing a frosty Cookies frame with Mimosa’s bright citrus terpenes.
The XL label is about size and output. These autos reach 100–130 cm (39–51 in) and are listed at 750+ g/m² (2.46+ oz/ft²) indoors, well above a typical autoflower. Outdoors, Growers Choice lists 100–200 g (3.5–7.1 oz) per plant.
With a 40% Indica / 60% Sativa split and 27–30% THC, it is as strong as it is productive. The breeder lists CBD as medium. Growers can also expect three phenotype expressions in a batch: a lush light green, one with a subtle pink undertone and one with a purple undertone.
Flavor and Effects of Platinum Mimosa Auto
The flavor is sweet, fruity and creamy, with a citrus and lemon undertone that lifts the finish. Cookies brings the creamy, doughy base; Mimosa adds the sparkle of fresh orange and lemon.
Imagine a lemon cream tart topped with fresh orange segments: rich and sweet on the inhale, bright and zesty on the exhale.
Growers Choice describes the effect mainly through its strength, so expect an intense, satisfying high. The 60% Sativa lean and Mimosa heritage suggest an upbeat, energizing start, with Platinum Cookies adding a relaxed body finish as the session continues. At 27–30% THC, start small.
The three phenotypes also make each grow a little different. Green plants keep a classic frosty look, while the pink and purple expressions show subtle colored hues beneath the trichomes, adding visual interest to the jar.
Growing Platinum Mimosa Auto Indoors and Outdoors
As an autoflower, Platinum Mimosa blooms without a light switch. Keep the lights at 18/6 or 20/4 from seed to harvest. Growers Choice lists about 11 weeks indoors for the full cycle, an impressive pace for an XL plant.
Give the Double XL frame room to work: a final container of 15–20 L (4–5 gal) and enough headroom for 130 cm (51 in) of growth. Early LST turns the main stem and side branches into an even, multi-cola canopy. Outdoors, it handles warm and cold climates and has high mold resistance, making it a reliable choice for a variety of regions.
Indoors, the XL vigor shows in the stretch during early bloom, so raise the lights in time and keep a fan moving air through the canopy. Outdoors, plants top out around 100–130 cm (39–51 in) and produce 100–200 g (3.5–7.1 oz) each; for maximum output, indoor or greenhouse growing with long light hours gets the most from these Double XL genetics.
Platinum Mimosa Auto Characteristics
| Strain type | Feminized autoflower (Double XL) |
| Genetics | Platinum Cookies x Mimosa |
| Indica/Sativa | 40% Indica / 60% Sativa |
| THC | 27–30% |
| CBD | Medium |
| Effect | Intense, upbeat start, relaxed finish |
| Flavor | Sweet, fruity, creamy with citrus and lemon |
| Indoor yield | 750+ g/m² (2.46+ oz/ft²) |
| Outdoor yield | 100–200 g/plant (3.5–7.1 oz/plant) |
| Seed to harvest | About 11 weeks indoors |
| Height | 100–130 cm (39–51 in) |
| Climate | Handles warm and cold climates |
| Mold resistance | High |
| Best cultivation technique | Early LST, 15–20 L container; 18/6 or 20/4 light |
FAQ
What does Double XL mean for Platinum Mimosa Auto?
It is Growers Choice’s high-yield XL autoflower line: larger plants of 100–130 cm (39–51 in) with indoor yields listed at 750+ g/m² (2.46+ oz/ft²).
What are the parents of Platinum Mimosa Auto?
It is a cross of Platinum Cookies and Mimosa. The breeder sells it as Platinum Mimosa Cookies Double XL.
Is Platinum Mimosa Auto Indica or Sativa?
It leans Sativa, with a 40% Indica / 60% Sativa split.
How strong is Platinum Mimosa Auto?
The breeder lists THC at 27–30% and CBD as medium.
How long does Platinum Mimosa Auto take?
About 11 weeks indoors from seed to harvest under 18/6 or 20/4 light.
Does Platinum Mimosa Auto produce colored buds?
Growers Choice describes three phenotypes: light green, one with a subtle pink undertone and one with a purple undertone.

