Mold resistant cannabis strains exist and cultivating strains that are resistant to molds is a great start to protecting your harvest. List of products tagged as Mold resistant in the Alchimia Grow catalogue. Depending on environmental conditions, mould can be a major threat to cannabis crops. These strains have a genetic advantage against its formation.
The Benefits of Mold Resistant Cannabis Strains
Bud rot is not only a nuisance for cannabis growers but it can also destroy a whole canopy when not detected soon enough. Once the grey hyphae of Botrytis cinerea claws onto one flower, it’s a matter of time before you start seeing the grey everywhere. However, the trick is to always catch it before it happens and “nip it in the bud” before more buds are affected. On some occasions, this can be a mean task, especially when the plants are subject to the erratic fluctuations of outdoor weather. But there’s always a way out; there are mold resistant cannabis strains that can out-do bad weather and still give high yields in spite of prevailing circumstances.
Landrace strains are indigenous to certain regions of the world and are adapted to the climatic conditions in that place. Most landrace strains are hardy and very resilient especially when subjected to trying conditions. Mold-resistant cannabis strains include:
1. Thai Sativa
Thai Sativa is a landrace strain that is hardy and takes rather long to grow, you may be waiting long into January to harvest.
Fortunately, this strain is mold resistant and can do well in humid environments. If you are patient enough this strain gives decent yield with large colas that are heavily resinous.
2. Afghan Kush
This Indica landrace strain traces its roots back to the Hindu Kush Mountains where it originated from. Over time, the strain has been perfected to make it even better adapted to diverse climatic conditions. Because it’s an Indica, this strain gives a heavy body hit that leaves users glued to the couch.
Growers like it because it is highly mold resistant and requires little TLC to thrive. It’s also revered for its high resin content that results in potent buds.
3. Durban Poison
Durban Poison is a 100% Sativa landrace strain that traces its roots to South Africa. Many good qualities make this strain favorable for most growers. Other than being mold resistant cannabis strain, this strain matures in a short time and manages to give decent yields. It has high resilience against elements of the weather and pests as well. Beginners will enjoy growing this strain.
4. Colombian Gold
Colombian Gold is a Sativa landrace strain that traces its roots back to the Santa Marta Mountains of Colombia. Originating from this mountainous region, this strain can weather through molds and pests while still giving high yields.
Mold Resistant Hybrid Strains
Cannabis hybrid strains are created by breeding two or more cannabis strains. Most hybrids will have a mix of Indica and Sativa genetics. Crossbreeding helps to create strong genetics by mixing favorable characteristics from different strains. Here are several hybrid strains that are resistant to mold.
A.M.S is the acronym for anti-mold-strain. It is the result of crossbreeding Swiss Sativa and Swiss Indica strains. The result is a strain that is hardy, durable and quite cerebral. This strain does extremely well in both indoor and outdoor conditions without much effort from the grower. It is especially loved for its mold-resistant properties that give growers peace of mind especially during the critical flowering and storage periods.
6. Frisian Duck
This is a cross between Frisian Dew and the Australian Duck Foot. The result is a strain that is resistant to pathogens as well as molds and mildew. This strain has been described as “an oddity” because of its appearance: the leaves are oddly shaped and resemble the webbed feet of a duck.
Frisian Duck is resistant to mold and mildew making it an easy strain for beginners. Mostly it does well in a sunny climate but can fight through the rain due to its mold-resistant properties.
7. 707 Truthband
This California strain is legendary in many ways. It’s highly resinous, highly resilient to molds and pests, gives extremely high yields and packs a potent punch. Users consider it a mind-bender strain.
Truthband does well both indoors and outdoors. Being a native it takes longer to mature indoors, but the yields are expected to be high.
8. Stress Killer Automatic
In recent years, cannabis ruderalis, which was once considered a wild strain of weed, has been used to create amazing hybrid strains such as Stress Killer Automatic. This strain is highly tolerant of high humidity levels and manages to keep molds and mildew at arm’s length.
As the name suggests, this strain is good for relaxation and subduing stress. Growers will love it because of its mold-resistant properties.
9. Royal Moby
Royal Moby is a choice strain for growers in high humidity regions. It thrives outdoors in a hot climate but can also do well in an indoor setting. It’s a strain with strong genetics, being a cross between the popular White Widow and Haze strains. It’s another strain that’s resistant to molds and mildew.
10. Strawberry Cough
Strawberry cough can handle high humidity levels and so does well in hot humid climates as well as rainy weather. It adapts to different climatic conditions quite easily making it attractive to most growers. It is also a flavorful strain that rewards users with a potent head buzz.
11. Grape Krush
With generous sprinkles of purple, Grape Krush is a beautiful sight to behold. The strain is also highly resinous; during flowering, the purple hues will be decorated resplendently with silvery-white sparkling trichomes. The parents of this hybrid strain are not known, but the breeder is suspected to be DJ Short.
This strain is resistant to molds and can do well in humid environments. If you are growing cannabis outdoors where the weather is erratic this may be the right strain to try.
12. The Purps
This is a Sativa dominant hybrid strain that was developed in Mendocino County of Northern California. It’s another of the mythical purple weed varieties that are much sought after. The plants grow tall and may take longer to mature. However, the strain is highly potent and popular; it bagged the 2007 trophy for High Times Top Ten List. It’s a strain that’s easy to grow because it can adapt to fluctuations in humidity. It is highly resistant to molds.
Alchimiaweb lists over 200 mold resistant cannabis strains that you can access through this link . Some strains will be hardier than the rest, but you should expect all these strains to have a decent degree of resistance to molds.
There are a few other measures that can be taken to reduce the risk for molds and mildew. This includes using Grove Bag liners that employ Terploc technology to prevent the spread of bud rot during curing and storage. Starting with strains that are resistant to molds is doing half the job. The other half rests in exercising vigilance to protect your buds once harvested.
Mold resistant cannabis strains
This resistance depends on several factors (bud density, environmental conditions, etc.) and specially on the selection of the parents used to produce the seeds, since this resistance is often genetically transmitted to the offspring.
Cannabis strains for wet climates
Mold resistant cannabis strains are the best option for growers in humid climates (northern Europe, Canada, etc.), either indoors or outdoors.
We present here a list of genetics from different seed companies with high resistance to molds and thus suitable for wet climates.
There are 270 products tagged as Mold resistant
Green Haze 19 A5 – Ace Seeds
Alchimiaweb are proud to offer feinised seeds of Green Haze 19 A5 from ACE Seeds, a limited edition cannabis hybrid of the best Green Haze combined with the legendary A5 Haze, resulting in an elegant and vigorous, predominantly-sativa hybrid of the h [. ]
- 5 seeds 80.00€
Purple Haze 23 A5 – Ace Seeds
Alchimiaweb are happy to present Purple Haze 23 A5 from ACE Seeds, a limited edition feminised cannabis hybrid of the best Purple Haze combined with the legendary A5 Haze, resulting in a vigorous, highly-perfumed incense Haze hybrid of the highest qu [. ]
- 5 seeds 80.00€
Mandarin Panties, Humboldt Line – Seed Stockers
Alchimia is delighted to present Mandarin Panties by Humboldt, a Limited Edition strain, within their Humboldt line, that is currently only available in our feminised cannabis seeds catalogue. You certainly should not miss this opportunity. Mandarin [. ]
- 3 seeds 44.90€
Mandarin Panties Auto, Humboldt Line – Seed Stockers
Alchimia is glad to present Mandarin Panties Auto, a variety of US genetics in Limited Edition by Humboldt, Seedstockers and Alchimia. An easy to cultivate plant that offers a strong tangerine citric terpene. It is certainly a great candidate to be a [. ]
- 3 seeds 44.90€
Nepal Jam x Kali China Fem – Ace Seeds
Alchimiaweb presents feminised seeds of Nepal Jam x Kali China, a complex and complete Sativa-dominant F1 hybrid that brings together two of the most popular hybrids in the ACE Seeds catalogue with astonishingly high-quality results. Now available in [. ]
- 3 seeds 31.00€
- 5 seeds 50.00€
Panama x PCK Fem – Ace Seeds
Alchimiaweb presents feminised seeds of Panama x PCK, an exciting hybrid combining two classic landrace cannabis varieties from the ACE Seeds catalogue. It’s a fast-flowering and fruity-flavoured 50/50 Indica-Sativa cross that gives visually spectacu [. ]
- 3 seeds 31.00€
- 5 seeds 50.00€
Strawberry Haze Auto – Kannabia
Alchimia is happy to present Strawberry Haze Auto by Kannabia Seed Company, a Sativa dominant auto-flowering plant of great vigour. It is particularly notable for its resistance to pests and humidity, with excellent performance both indoors and outdo [. ]
- 1 seed 8.50€
- 3 seeds 22.00€
- 5 seeds 29.00€
- 10 seeds 55.00€
Early Gorilla – Philosopher Seeds
We are happy to present Early Gorilla by Philosopher Seeds, the Gorilla Glue #4 version of this seed bank, a much appreciated variety for its high resin production and for its strong and relaxing effect. It is now available in our feminised cannabis [. ]
- 1 seed (Product sold out) 8.50€
- 3 seeds (Product sold out) 23.00€
- 5 seeds (Product sold out) 36.00€
- 25 seeds (Product sold out) 150.00€
Moby Delicious – Delicious Seeds
Delicious Seeds is glad to present here Moby Delicious, a cross between the famous predominantly Sativa Moby Dick and one of its descendants, Royal Moby. This strain, with even higher quality, is now available in our feminised cannabis seeds catalogu [. ]
- 3 seeds 34.00€
- 5 seeds 54.00€
Vanilla Sundae x London Pound Cake x Kushmints – T.H.Seeds
Alchimia are pleased to present limited edition seeds of Vanilla Sundae x London Pound Cake x Kushmints from TH Seeds. This hybrid is highly resistant to pests and fungi and offers a surprising and complex terpene profile that will have you coming ba [. ]
- 11 seeds 150.00€
Watermelon x London Pound Cake x Kushmints – T.H.Seeds
New from TH Seeds: limited edition regular seeds of Watermelon x London Pound Cake x Kushmints, a unique and highly resistant cannabis hybrid with an outstanding blend of flavours. Now available as part of our online seed catalogue at Alchimiaweb. W [. ]
- 11 seeds (Product sold out) 150.00€
Grandpa’s Stash – Ethos Genetics
Alchimia is glad to present Grandpa’s Stash by Ethos Genetics, the perfect strain for enthusiasts of new Old School crosses. It is a plant easy to cultivate, vigorous and with a strong earthy and pine petrol aroma. Now available in our feminised cann [. ]
- 5 seeds (Product sold out) 60.00€
- 10 seeds (Product sold out) 100.00€
Banana Candy Krush – T.H.Seeds
Alchimia is delighted to present Banana Candy Krush by TH Seeds, a hybrid with a slight Sativa influence. It has a flowering period of about 8-9 weeks, with a harvest of appetising buds with a unique terpenes concentration. A strain now available in [. ]
- 5+2 seeds and 1 French Macaron seed (Product sold out)
Eleven Roses Auto – Delicious Seeds
Delicious Seed presents here Eleven Rose Auto, this is the auto-flowering version of its best-selling variety since 2017. A high quality, productive and powerful plant with a very fast complete cycle. A variety now available in our auto-flowering can [. ]
- 1 seed 11.00€
- 3 seeds 30.00€
- 5 seeds 46.00€
- 10 seeds 85.00€
BubbleBananaGum 710 Special Pack – T.H.Seeds
TH Seeds presents here BubbleBananaGum, a genetic that has it all, easy cultivation, resistance and solid and efficient structure. It offers harvests full of resin with sweetish flavour, with a relaxing and positive effect. It is now available in our [. ]
- 5+2 seeds and 1 French Macaron seed 60.00€
Honduras Breeze – Ace Seeds
Alchimia is delighted to present Honduras Breeze, feminised seeds in limited edition by Ace Seeds, a breeders and cannabis lover’s collective dedicated to the preservation and study of this wonderful plant. Honduras Breeze, first generation pu [. ]
Top 5 Mould-Resistant Cannabis Strains
Mould can be a devastating blow to a grower’s crop, potentially ruining it entirely. These strains feature genetic traits that make them highly resistant to mould.
Cannabinoids, terpenes, phytochemicals, organic cultivation
Mould is a multicellular fungus that usually decomposes dead organic matter, yet can also affect living organisms, such as various plants and animals. Mould can be a big issue for growers, especially those dealing with damp conditions with little to no airflow. Mould usually takes the form of a white fuzz present on leaves and flowers, and is a devastating sight for growers who may have been halfway through cultivating an otherwise perfectly healthy crop.
There are several means of preventing mould formation, with genetics playing an important role. Some strains have developed the ability to resist mould to a certain extent, and here are the top 5.
1. Stress Killer Automatic
Stress Killer Automatic is a hardy and resilient specimen that stems from parent strains Lemon Shining Silver Haze, Juanita la Lagrimosa and Ruderalis. This powerful genetic base has gifted this variety a potent defence against mould invasion, keeping her precious flowers safe and ensuring high levels of protection over a crop. She’s also highly tolerant to excess humidity, an environmental factor that contributes toward the formation of mould.
Stress Killer Automatic is a sativa-dominant hybrid strain that offers high amounts of CBD, making her a fine choice for users seeking high doses of the therapeutic cannabinoid without getting too elevated in the process. Her effects are clear, pleasant, and allow the user to continue with their daily tasks without any mental obstruction.
This variety can be grown successfully in both indoor and outdoor environments. Indoor plants burst from seed to harvest in as little as 60–65 days and provide significant yields of 400–500g/m². Outdoor plants take advantage of more space to spread their roots and are capable of producing rewarding yields of 600–1000g/plant.
Stress Killer Automatic CBD
|Stress Killer Automatic CBD|
|Lemon Shining Silver Haze x Juanita la Lagrimosa x Ruderalis|
|450 – 500 gr/m2|
|90 – 140 cm|
|7 – 8 weeks|
|Sativa 60% Indica 30% Ruderalis 10%|
|110 – 160 gr/plant|
|120 – 160 cm|
|11 – 12 weeks after sprouting|
2. Shining Silver Haze
Shining Silver Haze is an award-winning variety that has been a hit within the cannabis world since the ‘90s. Her immaculate genetics stem from powerful pedigree parent strains Skunk, Northern Lights, and Haze. This superstar lineup formed a hybrid strain known for intense psychoactive effects that range from cerebral and stimulating to stoning and relaxing. These flowers contain a high THC content that induces a stress-busting state of euphoria.
Shining Silver Haze is well-equipped against humid and stagnant conditions, with a powerful line of defence against mould cells, making it hard for them to get a foothold. She produces large, fat buds that can take a toll on the lanky stature of this strain, often requiring growers to stake her for added structural support.
This strain has a preference for indoor growth and greenhouses, where she can pump out a good yield of 450–550g/m². Plants still perform well outdoors and offer their grower a harvest of approximately 550g/plant. Indoors, Shining Silver Haze has a flowering time of 9–11 weeks. Outdoor plants will be ready for harvesting in late October.
Shining Silver Haze
|Shining Silver Haze|
|Haze x (Skunk x Northern Light)|
|600 – 650 gr/m2|
|80 – 120 cm|
|9 – 11 weeks|
|Sativa 75% Indica 25%|
|600 – 650 gr/plant|
|180 – 220 cm|
3. Power Flower
Power Flower is derived from original South African dagga genetics and is renowned for her social, buzzy, and talkative high, despite her indica dominance. She is the result of crossbreeding parent strains Original Power Plant and White Widow, a pairing that passed on powerful mould-fighting qualities.
Smoking a bowl or joint loaded with this strain with leave a pleasant taste of pine on the taste buds. Power Flower is recognised as a competitive cash crop due to her fast flowering times and massive buds that form an enormous towering cola when left untopped.
Power Flower performs well in grow rooms and tents, and outdoors within garden beds and pots. She grows to a stealthy height of 80–120cm, making her very easy to conceal and cultivate in small spaces. For her small size, she puts out an impressive yield of 500–550g/m², ready for plucking after a flowering time of 8-9 weeks.
|South African Sativas|
|500 – 550 gr/m2|
|80 – 120 cm|
|9 – 10 weeks|
|Sativa 88% Indica 12%|
|500 – 550 gr/plant|
|160 – 200 cm|
4. ROYAL MOBY
Royal Moby is very resilient to mould, making her a strain of choice for growers in humid regions of the world. As well as being gifted in the defence department, this potent and tasty strain offers pungent scents of peppermint and intense flavours of Skunk, cedar wood, citrus, flowers, Haze, lemon, and pine. This diverse assortment of flavours complements the relaxing, stoning, and meditative high. A THC content of around 21% creates a high that comes on instantly and lingers for hours.
Royal Moby is the offspring of two famous strains—Haze and White Widow. This pairing produced a hybrid that grows to the enormous height of 3.5m outdoors, and can pump out a staggering yield of 700g per plant, roughly speaking. These traits make her a favourite among growers looking for a massive personal stash. Outdoor plants will be ready for harvesting in October. Indoor plants will produce yields of 650g/m², delivered after a flowering time of 60–70 days.
|Haze x White Widow|
|550 – 600 gr/m2|
|80 – 140 cm|
|9 – 10 weeks|
|Sativa 65% Indica 35%|
|650 – 700 gr/plant|
|200 – 300 cm|
|Balanced, Clear, Stoned|
5. Northern Light
Northern Light is a well-known name within the cannabis world, a strain famous for her indica purity and intense high. A huge bonus to growing this strain is her high resistance to mould, a trait that can put growers at ease during the flowering stage, knowing that she is quite capable of withstanding this threat.
Northern Light produces a high level of THC alongside a medium level of CBD, making her high stoning, relaxing, and euphoric. These qualities make her an ideal smoke for the evening hours when unwinding after a day of work. Each toke of this strain is accompanied by flavours of sweetness, fruit, and spices.
Indoor plants grow to heights of 100–160cm and put out yields of around 500–550g/m². Outdoor plants grow taller to heights of 180–220cm, producing good yields of up to 625g per plant. Northern Light has a flowering time of 7–8 weeks, and outdoor plants will be ready for the axe in late September.