Most mold resistant cannabis strains list—the types of marijuana that best resist bud rot, Botrytis, and powdery mildew. For sale as regular and feminized seeds.
Mold and mildew resistant strains are crucial to success when growing cannabis in humid climates. The best mold resistant strains have the ability to produce high-quality marijuana buds in wet conditions while ensuring harvest comes free of mold.
Without these resilient genetics, growers could easily lose crops to mold damage. Thankfully, the best mold resistant strain seeds are available to purchase practically anywhere you are in the world.
Why Mold Resistant Strains?
Have you ever dealt with pounds of moldy cannabis?
It would be great if you didn’t have to!
As your cannabis plants are nearing maturity, a Botrytis mold infection can quickly spread and destroy your crop in a matter of days. Once present, the mold grows fast and is hard to control, especially at high humidities.
Many outdoor cannabis growers feel it is impossible to grow buds worth any value in wet, rainy climates. They have seen the worst of it—pulling immature plants due to bad weather. Early harvests result in poor yields of scrawny, undeveloped buds that are difficult to market.
Here in Hawaii, we are faced with long periods of heavy rain and high humidity. The town of Hilo, Big Island, Hawaii, is one of the world’s wettest areas, with an average of 120 inches of annual rainfall.
Yet, people are producing amazing results outdoors growing marijuana in Hawaii.
It may come as a surprise to hear there are cannabis varieties that thrive in wet conditions.
Through generations of inbreeding and selection, these strains have adapted to humid and rainy environments. The resilience against mold is likely in their genes, a natural response for surviving the flowering process long enough to mature seed.
There are great mold resistant cannabis strains for sale that you can buy today as regular and feminized seeds to start growing your own!
A landrace strain is a variety of cannabis that grows in a certain outdoor area for multiple generations, typically sourced from wild populations and domesticated by farmers in different parts of the world.
Over time, the plants adapt to the local environment and pass on genetic knowledge for success to their offspring via reproduction. Meanwhile, farmers are able to select the best phenotypes to use for planting the next generation, thereby working the line towards resin production, mold resistance, or any other desired trait.
Landraces from wet climates tend to show the most mold resistance. The cannabis varieties from South and Central America, Asia, and Africa are renowned for their strength in growth and bud potency. These plants are historically sativas. However, hybridization is increasingly common.
Landrace strains are ideal for breeding programs. They can prove to be stable and uniform genetics. By crossing the landraces to high-yield hybrids, the best of both worlds collide—resilient genetics that bring in good returns.
The sativa varieties from Thailand, Laos, and Myanmar are some of the tallest, longest flowering, and most mold resistant strains in the world. A rarity in the modern cannabis market, these strains are revered among connoisseurs for their powerful psychedelic effects.
The trick to growing Thai sativa is to wait… and wait some more! Started from seed in the spring, many phenotypes won’t be ready to harvest until January or February the next year! The plants have a tendency to drop their leaves during mid-flower, so don’t mistake this as the plant dying off. The buds will keep bulking up in time.
The taste and smell of Southeast Asian sativas are unique, resembling rotten fruit or anise. The high has virtually no ceiling—at high doses, the effect is comparable to magic mushrooms.
Considered one of Africa’s best sativa strains, Malawi Gold cannabis is harvested in Malawi’s central and northern regions. This subtropical area’s hot and humid conditions are responsible for the superior mold resistance that Malawi Gold has developed.
The plants grow strong and tall with lots of branching and the potential to get huge. Recommended for outdoor cultivation in warm climates. Its long flowering time of up to 16 weeks makes this strain a challenge for many growers.
Malawi Gold buds are large, incredibly resinous, and have a deep gold, almost amber color. It smells and tastes like exotic pineapple/lemon and spicy incense, which is enhanced by the traditional Malawi Cob curing method. The high is extremely psychoactive.
The search for a fast flowering, mold resistant sativa is over. This 100% sativa variety grows wild to the north of the Drakenberg ridge in South Africa. The climate is wet and cool at the high elevations, which experience snowfall in the winter.
Kwazulu matures fast at only 65 to 75 days of flowering, allowing easy cultivation both indoors and outdoors. The plants grow quickly into a tree formation and develop unusually large colas. Very resistant to mold, powdery mildew, and pests.
Rewarding yields of marketable, big buds with a fruity aroma and flavor. Kwazulu gives an energetic high felt mostly in the head. Legend has it this strain was used before battle by Shaka Zulus, one of Africa’s farmer warrior tribes.
Colombian Gold is a legendary landrace sativa originating from the Santa Marta mountains of Colombia. This strain has laid the foundation for many modern cannabis strains as we know it—the infamous Skunk #1 is said to have Colombian Gold genetics as well as countless other creations.
Below 8000 ft. elevation, you can find anything from typical Andes woodland to dense tropical forests. The indigenous people of this area have cultivated cannabis for generations. These plants are tall, vigorous, fast-flowering, and show excellent mold resistance and yield potential.
Musky, spicy, and fruity—Colombian Gold is a savory smoke that stands out for its taste and potent, psychedelic effects. Dating back to the late 1700s, records show Simón Bolívar used the seeds as he traveled around the Amazon rainforest, trading spices and medicinal plants with the natives.
A hybrid is a crossbreed—the offspring of two different cannabis varieties.
Hybrid strains offer many advantages to cannabis growers.
The dense, resinous bud qualities of an indica combine with the larger stature of a sativa to create a strain that can grow tall while still producing top-shelf dank buds.
Hybrids have what’s called “hybrid vigor”, a trait that allows them to outperform both of their parents in growth speed and yield. See—High Yield Strains
Hybrids make up the majority of genetic stock on the market. Nearly all the popular modern strains are hybridized, such as Blue Dream, OG Kush, Diesel, Girl Scout Cookies, Trainwreck, White Widow, etc.
When searching for a suitable hybrid, take a look at its parents. For best defense against wet, humid climates, find strains that are bred from mold resistant or wet climate landrace strains.
Hybrids made from landraces or hardy inbred strains typically perform better outdoors than alternatives bred for maximum production indoors (although there are exceptions).
Super Silver Haze
Originating from the classic cannabis strains Skunk, Northern Lights, and Haze, Super Silver Haze is a famous award-winning sativa hybrid prized by commercial cultivators and connoisseurs alike.
An ideal outdoor strain for warm climates, the plants get rather tall and unwieldy if allowed to. Indoor growers are advised to use SCROG or LST combined with a short veg cycle to control height. After a long flowering time of 10–11 weeks, Super Silver Haze rewards growers with giant colas—so large they may require staking. Resistant to mold and disease.
Sweet, herbal aromas and flavors. Long-lasting effects that provide a potent, cerebral head high, progressing into a deep state of relaxation. A favorite smoke of many.
Jamaican Pearl is a cross of the mold resistant sativa hybrid Early Pearl with the Jamaican female plant used to create Marley’s Collie. This created an ideal sativa for outdoor cultivation—even at northern latitudes—that’s quick to flower and shows great resistance to mold.
A tall plant, Jamaican Pearl displays a typical sativa growth pattern but develops quite bushy compared to others. Its flower clusters run together, filling in space between internodes with long “banana” buds. This characteristic allows for abundant harvests, which come after 9–11 weeks of bloom.
The taste and aroma of Jamaican Pearl are sweet, earthy, fruity, and spicy, reflective of the rich diversity of its genetics. The effect produces an uplifting, happy, warm feeling that radiates throughout the mind and body.
Bangi Haze, named for its Nepalese incense aroma, is one of the most stabilized sativa dominant hybrids in the Ace seeds catalog. This fast-flowering, easy-to-grow cannabis strain is an excellent choice for cultivation in a range of harsh climates–from rainy to cold outdoor areas as well as indoors too.
The plants grow compact, columnar, and easy to work with for a sativa. It produces dense buds loaded with trichomes. Superb mold resistance. Ready to harvest at 9–10 weeks of flowering.
Bangi Haze has a sweet taste, like honey or liquor. The high is similar to Congolese sativas, very energetic.
One of the first Dutch outdoor varieties, Holland’s Hope is a mostly indica strain grown in Holland since the eighties. Developed specifically to thrive in cold climates, it is also very mold resistant.
As with other indica dominant strains, Holland’s Hope remains short and stocky, with lots of branching and overall sturdiness. An ideal candidate for pruning techniques. It has a fast flowering period of 50 to 60 days. The buds are dense, heavy, and grow big.
Classic indica smell and flavor—pungent, earthy, hashy, and spicy. The potent effects hit hard in both the mind and body, leaving users feeling calm and sedated. A great choice for beginner growers and experts alike.
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