Growing cannabis in wet humid climates is a challenge without some good mold resistant strains. The best mold resistant strain seeds grow hardy, resilient cannabis plants that can fully finish up dank outdoors in rough conditions—even in the pouring rain.

Why Mold Resistant Strains?

Have you ever dealt with pounds of moldy cannabis?

Plants soaked, buds mushy and trashed, covered in grey/blue mold and black bud rot. Only to harvest and bring them inside to further multiply the problem.

Many 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 the 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 wettest areas in the world, at an average of 126.72 inches (3,220 mm) of annual rainfall.

Yet, people are producing amazing marijuana outdoors in Hilo, Hawaii.

How so?

It may come to you as a surprise that there are cannabis varieties adapted to wet conditions—they can even thrive in them!



Through generations of inbreeding and cross pollination, many strains of cannabis are naturalized to humid and rainy environments. The gained resilience is likely in their genes, to make it through 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!

Landrace Strains

A landrace cannabis strain is a breed of marijuana that has grown in an area by itself for generations. Also known as feral cannabis. The plants learn to grow in and adapt to the local climate, passing the knowledge gained to their offspring.

Landraces from wet climates show superior mold resistance, vigor and hardiness. The tropical ones are mostly sativa strains; however, cross pollination can occur. Sativas from South and Central America, Asia and Africa are renowned for their strength in both growing and bud potency.

Landrace strains are ideal for breeding programs. They can prove to be stable, uniform genetics. By crossing the landraces to high yield cannabis hybrids, the best of both worlds collide—strong genetics that bring in good returns.



Durban Poison

Durban Poison is a 100% sativa, inbred, never hybridized landrace originating from South Africa. Strong and hardy seeds and plant, exceptionally resistant to mold and disease. Flowering time is short for a sativa, 8 to 9 weeks, which makes her suitable for all kinds of growers.

Durban Poison gets huge outdoors and reaps wonderful fat bud harvests, even in awful weather. Durban has been around since the ’70’s and still competes in today’s market with her high quality buds.

Smells and tastes like a minty herbal spice, a Durban delicacy. Fast flowering time, impressive yields and outdoor resilience equals prime outdoor cash crop.

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Brazil Amazonia

The search for a mold resistant indica is over. This variety is a pure indica strain collected from the Amazon rainforest. Its buds are rock hard dense with a nice citrusy smell and flavor.

Brazil Amazonia matures fast and stacks up big dank buds. When vegged under lights she will finish flowering before 8 weeks. Big yields for all kinds of growers, indoors and outdoors. A vigorous, fast growing strain that performs well in clone rotation setups.

Rewarding, top quality outdoor grow operations have been pulled off with Brazil Amazonia seeds. Mold resistant and easily marketable, Brazil Amazonia is a true performer.

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Colombian Gold

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 genetics—the infamous Skunk #1 seeds come from Colombian Gold as well as countless others.

An original beaster, Colombian Gold comes from a high elevation and can handle harsh weather with strength. Mold and pest resistant. Colombian Gold seeds were used by Simon Bolivar as he traveled around the Amazon rainforest trading spices and medicinal plants with natives during his conquests.

Musky, spicy, fruity—Colombian Gold is a savory smell and smoke. Naturally titanic; don’t be surprised when harvesting multi-pound plants.

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Thai Sativa

Thai landrace sativas grow larger than nearly any other strain, they beast out into massive cannabis trees. Thai sativas are among the most mold resistant strains in the world. However, their lengthy flowering time is not for the faint of heart.

Started from seed in the spring, many Thai seed phenotypes will not finish flowering until January or February the next year!

The trick to growing Thai sativa is patience. They have a tendency to drop their leaves during mid-flower, making growers think they’re ready to harvest—but they’ll still keep going if you let them. Cut too early you’ll lose a lot of bud weight, so let those arm size colas get big and droopy! Thais have the potential to be super heaviest yielding trees that bring in many kilos per plant. The smell is unique to SE Asian sativa strains, resembling rotten fruit or anise.

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Hybrid Strains

A hybrid is a crossbreed—the offspring of two different cannabis varieties.

Hybrid strains offer many advantages to the grower:

The dank, dense, resinous bud qualities of an indica combine with the bigger stature of a sativa to create a strain that grows big and makes top shelf quality buds.

Hybrids can have what’s called “hybrid vigor”, a trait that allows them to out perform both of their parents in growth speed and yield.

Hybrids make up most of the genetic stock of cannabis nowadays. Nearly all 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, always look at the parents. For best defense against wet humid climates, find strains that are bred from mold resistant or rainy climate landrace strains.

Hybrids made from landraces or hardy inbred strains can perform better outdoors than the over-hybridized alternatives (although there are exceptions).

Orient Express

Orient Express is a mix of the legendary Vietnam Black crossed to a Yunnan Chinese indica. Soaringly high bud production when grown well, these compact indica bushes get form fat heavy buds over a short flowering period

Vietnam Black is renowned for its incredibly strong psychedelic high, described as extremely intense—even frighteningly mind-bending. It’s the kind of weed you smoke at a party and then everybody gets arkward. Orient Express retains the intensity of the Black, but a little more relaxed with the addition of an indica. Musky floral smell and taste, the smoke hits real smooth and big bong hits taste great.

Orient Express will hold up to any weather conditions. Mold issues are non-existent, so it’s an ideal wet weather strain. The buds get to a very good quality grown outdoors and indoors, be sure to bring Orient Express all the way til the end for best results.

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Super Silver Haze

Originating from classic inbred strains Skunk, Northern Lights and Haze, Super Silver Haze will blow your mind with its drooping, colossal flowers—the plants require staking as the buds get super big and heavy.

Super Silver yields exceptionally well and grows into giant plants. Grow Super Silver Haze seeds outdoors and be flooded with killer pot come harvest time. The price you pay for these fat yields will be a longer than normal flowering time, but your wait will be rewarded in the form of killer sativa dankness.

This strain resists molds and diseases. Be sure to provide loads of nutrients to Super Silver Haze for maximum returns. Then enjoy having tons of nice silver buds with a sweet taste like sugar cane.

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Strawberry Cough

With mysterious genetic origins and a taste to die for, Strawberry Cough handles the bad weather surprisingly well. Strawberry Cough has proven itself though guerrilla growing operations in poor, wet conditions with days of rain, much surpassing expectations for a strain so frequently grown indoors.

The flavor of Strawberry Cough most certainly lives up to its name. Incredibly sweet, literally tasting just like strawberries—anyone who gets a sample will instantly be hooked.

While not the insane heavy yielder, with proper care Strawberry Cough seeds turn into large plants outdoors, producing ample amounts of bud from each plant. Assuming there’s plenty of light, water and nutrients, prepare to be supplied with a solid amount of amazingly fruity pot.

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Power Plant

Power Plant seeds are descended from South African dagga genetics, obtained in 1997 and hybridized for increased yield and bud formation.

This strain is an ideal cash cropper—enormous-sized competitive quality buds on hardy plants that will handle any rough outdoor climate. Power Plant’s flavor has been described as a “sativa that tastes like Kush, with a pungent, musky smell”. Get insane harvests from easily clone-able plants, Power Plant is perfect for your outdoor or indoor grow operation.

Flowering is short for this mostly sativa strain at only about 8 weeks. The seeds grown are very uniform, producing marijuana with great bag appeal. Power Plant is for the serious high yield farmer.

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For more information on selecting mold resistant marijuana strains, visit our homepage for the Best-Selling Cannabis Seeds

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