Cinderella Jack Auto by Dutch Passion

Cinderella Jack Auto began with two celebrated parents, Cinderella 99 and Jack Herer, both known for potency, flavor and solid yields. Dutch Passion then bred the cross with the Magnum autoflower line, developed together with a Spanish autoflower specialist, which brings above-average harvests. Over many generations, selection focused almost entirely on a single trait: THC.

Professional lab analysis was used at every stage to keep that potency stable across generations and individual plants. The outcome is remarkable: a THC content of almost 26%, confirmed by two separate labs using HPLC, with levels consistently above 20%. Dutch Passion calls her the most potent autoflower in its collection, and she took 2nd prize at the Copa Esmeralda in Colombia in 2018.

Despite all that strength, she is an easy plant. Most specimens reach 0.75-1 m (30-39 in), are compact and sturdy, and finish 10-11 weeks after germination. Indoors she yields 400-500 g/m² (1.31-1.64 oz/ft²), and outdoors 100-150 g (3.5-5.3 oz) per plant is quite achievable.

Terpenes, Bud Quality, and Effect

The aroma is dominated by pine and fresh herbs, with spicy and fruity accents that many phenotypes push further toward fresh citrus. Dutch Passion identifies the four leading terpenes as alpha-pinene (pine), beta-myrcene (earthy, floral, fruity), beta-caryophyllene (spicy, woody) and limonene (citrus).

Flowers are dense, glittering and super white, stacked from top to bottom and easy to trim thanks to a good flower-to-leaf ratio. Most plants are medium-sized; some form a neat Christmas tree shape, and a larger sativa-leaning phenotype is a little less compact but noticeably more productive.

The high is a powerful hybrid: an energetic up-high fused with a heavy body stone. Some plants lean indica, others sativa, but all hit hard and last a long time. Given the THC level, this is not a strain for inexperienced consumers. Her cannabinoid and terpene density also makes her excellent material for rosin, BHO, shatter and wax.

Growing Cinderella Jack Auto

She does well under LED, HPS, CMH or even compact fluorescent lighting, indoors, outdoors and in greenhouses. Dutch Passion recommends 20/4 indoors, preferably with a spectrum-adjustable LED that allows an optional blue-light finish to boost terpenes.

Her compact frame makes her ideal for SOG or natural growth with fewer plants in larger pots. SCROG, bending and supercropping are not recommended. Place seedlings in their final pot from the start or right after sprouting.

Outdoors she may need 12-13 weeks. Moderate climates allow at least two harvests per season, and warm, dry climates up to three. In cooler or wetter regions, pre-grow for 1-2.5 weeks indoors under 20/4 in a 0.5-1 L (17-34 fl oz) pot. Keep humidity low in flowering because some phenotypes have very dense buds, and check trichomes with a loupe, since some plants need an extra 1-2 weeks.

Cinderella Jack Auto Characteristics

Strain type	Autoflowering (feminized)
Genetics	(Cinderella 99 x Jack Herer) x Magnum
Indica/Sativa	Hybrid
THC	Up to almost 26% (lab-verified); consistently above 20%
Effect	Energetic up-high with a heavy body stone
Flavor	Pine, herbs, spice, fresh citrus fruit
Indoor yield	400-500 g/m² (1.31-1.64 oz/ft²)
Outdoor yield	100-150 g/plant (3.5-5.3 oz/plant)
Seed to harvest	10-11 weeks
Outdoor harvest	Up to 12-13 weeks; 2-3 harvests per season
Height	75-100 cm (30-39 in)
Structure	Compact, medium-sized, strong branches, some Christmas tree phenotypes
Bud appearance	Dense, glittering, super white with trichomes
Best cultivation technique	SOG or natural growth; no SCROG or supercropping

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