
K.C. 39 Regular 5 seeds
K.C. 39 Regular – High-Yielding Indica by KC Brains
What is K.C. 39? K.C. 39 by KC Brains is a regular, photoperiod and predominantly Indica-influenced hybrid, created from Spanish selections and K.C. 606. Indoors it flowers for 7 to 9 weeks and stays at 120 cm at most; outdoors it grows 2 to 3 m tall and, according to the breeder, yields up to 1,000 g per plant, with harvest beginning at the end of September. KC Brains gives the THC content as 20% and the aroma as a citrus-hash scent. The robust strain produces male and female plants and suits beginners with plenty of space in the garden – in the regular outdoor seeds category. Available in a pack of 5 seeds.
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Genetics & Origin of K.C. 39
K.C. 39 is a joint breeding project of Spanish seed selectors and KC Brains. According to the breeder, the strongest Spanish seeds were crossed with K.C. 606; it does not say exactly which Spanish strains these were. The aim was a stable, easy-growing hybrid for indoors and outdoors. The plants are predominantly Indica, dark green and become bushy under optimal conditions. KC Brains highlights the resistance to pests, fungi and diseases and counts K.C. 39 among the highest-yielding strains of all. According to the breeder, the THC content is 20%. The strain is photoperiod and is offered as regular seed: the seeds grow into male and female plants, which makes selection, your own mother plants and crosses possible. Another regular strain from the breeder is Mind Bender Regular.
Who Is K.C. 39 For?
K.C. 39 is a robust, tall-growing strain that rewards plenty of space. It suits:
- Beginners looking for an easy-growing, resilient plant
- Outdoor gardeners with space for plants 2 to 3 m tall
- Yield-focused growers who go for large harvests per plant
- Hobby breeders who want to work with male and female plants
- Lovers of citrus and hash aromas
If you can only keep a few plants and need each of them to be reliably female, you are less well served by regular seeds. You can find more strains of this kind under regular seeds.
Growing K.C. 39: Indoor & Outdoor
Indoor Growing
For indoors, KC Brains states a flowering time of 7 to 9 weeks, and elsewhere around 8 weeks. According to the breeder, the plants stay compact and grow no taller than 120 cm; they perform very well in pots with soil. The breeder does not give an indoor yield in g/m². As these are regular seeds, it is best to germinate more seeds than the number of plants you want to keep and determine the sex in pre-flowering. Remove male plants in good time unless you want to produce seeds. You will find an introduction in the tips for beginners.
Outdoor Growing
Outdoors, K.C. 39 shows its true format: the plants reach 2 to 3 m and, according to the breeder, yield up to 1,000 g per plant. Outdoors, flowering takes up to 11 weeks; harvest begins at the end of September and extends into October. KC Brains advises a secure spot with good midday sun and names hard clay soil dried out by the sun as an obstacle – so loosen the soil thoroughly before planting. At this size, sturdy supports for the side branches make sense. Only grow where it is legal to do so.
Effect, Aroma & Flavour of K.C. 39
According to KC Brains, K.C. 39 gives off a very pleasant citrus-hash scent that becomes even more intense in fully ripened flowers. The breeder describes the buds as large and robust, covered in white, sticky hairs. It does not give a lab terpene profile or a more detailed description of the flavour. KC Brains gives the THC content as 20%; according to the breeder, the strain is considered one of the strongest. It comments only briefly on the type of effect: it links the Indica character of the plants with a relaxing effect. The breeder gives no further information on the effect, and we do not add any assessments of our own. With regular seeds, individual plants can also differ. How strong the effect is in an individual case depends on phenotype, dose and individual tolerance.
Note: Effect information is based on manufacturer data and user experience and does not constitute medical advice.
Why Buy K.C. 39 Regular at United Seedbanks?
At United Seedbanks you buy K.C. 39 Regular as original genetics from KC Brains. As a specialist shop for cannabis seeds, we place great importance on provenance, storage and transparent information about every strain.
- Original seeds from KC Brains – K.C. 39 as a regular pack of 5 from the breeder's catalogue.
- A real specialist shop – reachable in person if you have questions about a strain or your order.
- Discreet shipping – neutral, protected packaging; free shipping from an order value of €100.
- Secure payment methods – credit card, bank transfer or Bitcoin.
- Careful storage – seeds kept cool and dry for optimal germination conditions.
Anyone ordering K.C. 39 Regular from United Seedbanks buys verified original seeds. Learn more about this breeder's range on the KC Brains page.
Frequently Asked Questions about K.C. 39 Regular
Are the seeds of K.C. 39 regular?
Yes. The seeds grow into male and female plants; you determine the sex in pre-flowering. This also makes the strain interesting for your own crosses.
Is K.C. 39 suitable for beginners?
Yes. KC Brains describes it as easy-growing and very resistant to pests, fungi and diseases, and we classify it for beginners. However, you should plan for sorting out male plants.
How big does K.C. 39 grow?
Outdoors 2 to 3 m, indoors no more than 120 cm according to the breeder.
What yield does K.C. 39 deliver outdoors?
KC Brains states up to 1,000 g per plant. Harvest begins at the end of September and lasts into October.
How long does K.C. 39 flower?
Indoors 7 to 9 weeks; elsewhere the breeder states around 8 weeks. Outdoors, according to the breeder, flowering takes up to 11 weeks.