Mold Resistant Cannabis Seeds

Depending on environmental conditions, mould can be a major threat to cannabis crops. These strains have a genetic advantage against its formation. Unfortunately your plants are much more likely to suffer from mold if you live in a humid environment or have cool, wet weather 🙁 Although no strain is fool-proof, some strains are better at preventing mold than others! Get a list of some of the most pop List of products tagged as Mold resistant in the Alchimia Grow catalogue.

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
THC: 11%
Sativa 60% Indica 30% Ruderalis 10%
110 – 160 gr/plant
120 – 160 cm
11 – 12 weeks after sprouting
Clear, Focus

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
THC: 21%
Sativa 75% Indica 25%
600 – 650 gr/plant
180 – 220 cm
Late October
Heavy

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.

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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.

Power Flower
Power Flower
South African Sativas
500 – 550 gr/m2
80 – 120 cm
9 – 10 weeks
THC: 19%
Sativa 88% Indica 12%
500 – 550 gr/plant
160 – 200 cm
October
Heavy

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.

Royal Moby
Royal Moby
Haze x White Widow
550 – 600 gr/m2
80 – 140 cm
9 – 10 weeks
THC: 21%
Sativa 65% Indica 35%
650 – 700 gr/plant
200 – 300 cm
Late October
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.

Best Mold-Resistant Cannabis Strains

We’ve written quite a bit about how mold can affect your cannabis, but we thought it might be helpful to provide a list of some mold-resistant strains!

List of Mold-Resistant Cannabis Strains

Strains for Indoors

Although nothing can fix bad growing practices, some strains are more resilient towards mold than others. If you’re growing in a smaller space, or if you live in a part of the world that gets very humid, it can’t hurt to get a more mold-resistant strain!

Here are some strains that are mold-resistant and suitable to being grown indoors:

    – Easy to grow, mold-resistant, potent. Smells a bit like peppermint but has also been described as having an old-school skunky flavor similar to popular sativa buds from the early 90’s. Great yields, too!
    -This strain is a personal favorite. It has a sweet flavor/taste that is reminiscent of chocolate, and the effects are powerful. As a bonus, it is mold-resistant from its Hawaiian roots
    strain is resistant to mold and poor environmental conditions. This one survived heat and high humidity to produce great yields with strong bud effects.
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Other popular indoor mold-resistant strains:

    by Bomb Seeds by Royal Queen Seeds by Seed Supreme by Sweet Seeds by Barney’s Farm by Reserva Privada

Strains For Outdoors

Although definitely not foolproof, it can’t hurt to get a more mold-resistant strain if you live in a humid environment, or if you’re an outdoor grower who gets cool wet conditions early in the fall!

Here are some strains that are mold-resistant and suitable to being grown outdoors:

    – A G13 Labs strain that is resistant to mold and produces beautiful bud quality.
    – Designed specifically for outdoor growing (and not really suited to indoors), this strain is ready to harvest in late September or early October in the northern hemisphere. This strain has been bred for bud appearance, potency, yields, and overall weather resistance. Plants get 3-7 feet tall on average and produce a “knock-down” and “euphoric stone” effect that’s been honed for over three decades, with unique effects that are difficult to find with indoor strains. The buds are very mold-resistant and tend to get very fat. Buds often take on purple hues as they approach harvest.
    – A popular strain because about half of the plants grow buds that turn an incredible, vibrant purple (the other half of plants grow green buds but still beautiful and the effects are just as good). This strain tends to grow the highest percentage of purple buds if plants in the flowering stage are exposed to very sunny weather with many hours of direct sunlight each day, as well as if plants also get cool temperatures at night. This strain is very well suited to outdoor growing, even in northern climates, and is especially resistant to mold.

The plant in the middle with the dark purple buds is Frisian Dew

    – This citrus sour-smelling strain grows well outdoors, and is not only mold resistant but produces good yields, too.

Other popular outdoor mold-resistant strains:

    by Seed Supreme by Greenhouse Seed Co. by Humboldt Seed Co. by Heavyweight Seeds by G13 Labs by G13 Labs by Ace Seeds

Mold-Resistant Auto-Flowering Strains

The following auto-flowering strains are specifically listed as being mold-resistant. Learn more about autoflowering strains (auto-flowering plants automatically go from germination to harvest in 2-3 months).

    by Nirvana by G13 Labs by Barney’s Farm by Barney’s Farm Extra potent auto-flowering strain! by Seedsman by Barney’s Farm by Pyramid Seeds by Barney’s Farm

Purple Punch Auto by Barney’s Farm performs well outdoors and produces beautiful purple buds

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€
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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 [. ]

  • 12.00€
  • 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) 65.00€ 42.20€

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€

Nepal Mist Standard – Ace Seeds

Alchimia is delighted to present Nepal Mist Standard, a cannabis variety seed in limited edition developed by Ace Seeds, a group of breeders and cannabis lovers devoted to the preservation and study of this wonderful plant. Cannabis Nepal Mist by Ac [. ]