11 Mold Resilient Cannabis Strains Ideal For Wet Climates

Growing marijuana in a wet humid climate is a completely different ballgame than what most growers face. Nevertheless, finishing quality buds in the pouring rain is not impossible for the selective, careful and attentive grower. Have you ever dealt with pounds of moldy weed? Plants soaked; buds mushy and trashed, covered with white/blue mold and black bud rot. Only to harvest and bring them inside to further multiply the problem.

Many growers feel it is impossible to produce buds worth any value in such wet weather. They will be stuck pulling plants well before they are finished flowering, and justify doing so by the bad weather. Early harvesting will produce shrunken yields and scrawny, undeveloped buds that are difficult to market.

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

Many types of marijuana have been bred in such humid and rainy environments for generations. Through this, the plants have built up a natural resistance to the climate, in order to make it through their flowering process long enough to mature seed.

Selecting Strains

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 – 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-cropper.

Brazil Amazonia


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

Brazil Amazonia finishes swiftly and stacks up like concrete. When vegged under lights she will finish before 8 weeks. Big yields for all kinds of growers, indoors and outdoors. A vigorous, fast growing strain that performs well in clone rotation set-ups.

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 is a major foundation of all modern cannabis genetics, the infamous Skunk #1 seeds originating 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.

Thai Sativa


Thai landrace sativas grow larger than nearly any other strain, photosynthesizing into freaky gigantamongustrees. Ultimately mold resistant and long flowering, growing a Thai pure sativa is not for the faint of heart.

Many phenotypes of Thai seeds will not finish flowering until January. The general masses who try growing a Thai sativa can not wait that long (for various reasons), and end up harvesting the plant early – thus giving Thai strains a false reputation for scrawniness.

If finished correctly (which is challenging when outside a tropical/sub-tropical climate), seeds will evolve into arm-sized colas that droop down requiring staking. Thai has the potential to be the all-time heaviest yielding strain. Her fully finished buds are big, hard and competitive. The smell is unique to SE Asian sativa strains, often resembling rotten fruit and anise.

Hybrid strains

The offspring of two ganja plants with different genetics is called a hybrid.

Although plant genetics are not immediately stable breeding once a strain is hybridized, hybrid strains can have many advantages to the grower:

A hybrid can have the bud qualities of an indica while taking taking the bigger stature of a sativa. Often hybrids have what is called “hybrid vigor” and out-perform both of their predecessors in growth speed and yield while shortening the sativa flowering time.

Hybrids make up most of the genetic stock of cannabis nowadays. Nearly all popular modern strains are hybrid such as: Blue Dream, OG Kush, Diesel, Girl Scout Cookies, Trainwreck, White Widow, ect…

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.

Well-bred hybrids made from landraces or hardy inbred strains most often perform better outdoors than the over-hybridized alternatives (however, there are some exceptions).

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 mold, 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.

Orient Express


Orient Express is a mix of the legendary Vietnam Black crossed with a Yunnan Chinese indica. Soaringly high bud production when grown correctly, experience obese buds on a compact indica bush structure with a shortened flowering time.

Vietnam Black is renowned for it’s incredibly strong psychedelic high – described as extremely intense, even frighteningly mind-bending…the kind of weed you smoke at a party and everybody goes home. 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 is incredibly smooth, easily being able to enjoy BIG hits.

Orient Express will hold up to any weather conditions, mold issues are non-existant, an ideal wet weather strain. The buds are utmost quality grown outdoors as well as indoors, be sure to finish Orient Express all the way til the end for an enchanting Asian surprise.

Moby Dick

Moby Dick is very easy to grow, very mold resistant, VERY 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!

Super Silver Haze


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

Yields exceptionally fruitful and grows into giant plants; grow Super Silver Haze seeds outdoor and be flooded with killer pot. The price you pay for these fat harvests will be the longer flowering time – but – for the wait will be rewards in the form of dankness.

SSH performs well resisting mold and disease. Be sure to provide soil with loads of nutrients while growing Super Silver Haze, in order to pump the maximum bud growth from these monsters. A confusing high. Enjoy having loads of glamorous, sweet silver buds with a taste reminiscent of sugar-cane.

Strawberry Cough


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

The flavor of Strawberry Cough most certainly lives up to it’s 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 off each plant. Provide additional lighting on an extended vegetative cycle, and prepare to be supplied with a solid amount of amazingly fruity pot.

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 rough outdoor climates. Power plant’s flavor has been described as a “sativa that tastes like kush” with a pungent, musky smell. Insane yields from easily clone-able plants, Power Plant is perfect for your outdoor or indoor grow operation.

Flowering is short for this mostly sativa strain, only about 8 weeks. Seeds grown are very uniform, producing marijuana with great bag-appeal. Power Plant is for the serious volume cropper.

Sweet Tooth

Sweet Tooth is highly resistant against molds and pests. It grows about 2 to 3 feet tall and is very suitable to cultivate outdoors. Just make sure to harvest it by the last week of the month of September, and you can have about 800 grams of each plant. Moreover, because of being resilient and versatile, plants make it easy to cultivate in any growing setups. Just provide the right amount of water and nutrients and can guarantee all to the growers to have bountiful and high-quality cannabis buds. However, its branches are quite huge and filled with resinous flowers that need to install some support for its branches.

Sweet Tooth is an Indica dominant hybrid that comes from the lineage of two potent breeds, namely Nepalese and Afghani. With such combination making it a very tasty weed that offers mental and physical high without leaving couch-lock experience, especially when smoke in the right dosage. Having a strong odor that followed by upbeat cerebral buzz makes it suitable to use during late afternoon use.

[Updated, originally published 30.11.2016]

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