Resistant weed seeds

Mold Mildew Resistant Strains, Cannabis Seed, Marijuana Seeds, Sativa, Auto or Indica Seed

Best strains to grow outdoors. Mold and mildew resistant strains for sale as feminized and regular cannabis seeds (aka marijuana seeds or weed seeds). The top 10 best outdoor strains listed below are mostly indica-sativa hybrids, with a few pure sativa strains too—all high-yielding strains ideal for growing outdoors. The plants are resistant to mold or less susceptible than other so-called “mold resistant” strains we’ve tried outdoors in Hawaii.

NYC Diesel

NYC Diesel, or New York City Diesel, is a perfect hybrid for outdoor cash croppers. This mold resistant strain from the Big Apple produces loads of chunky buds that reek of petrol.

The plants grow tall and wide. NYC Diesel thrives in most settings, especially when given long hours of intense light. It also performs well indoors grown in a hydro system .

⚖️ Yields are high along with quality. The buds have a dank indica appearance despite being predominantly sativa. Very stinky stuff.

An easy-growing mold resistant strain from seed.

Breeds vigorous hybrids and clones quickly.

NYC Diesel is an all-around easy-growing strain for anyone. As long as the plants have enough airflow, their buds have no problem finishing outdoors in wet climates.

Genetics Originates from the Chemdawg line
Flowering Time 10 weeks
Pack Size 5/10/20 seeds
Yield Indoors: 475 g/m2
Outdoors: 950 g/plant
Mold Resistance

Buy NYC Diesel Seeds

Blue Dream

Blue Dream is a super popular sativa dominant hybrid out of California. These massive cannabis trees produce copious amounts of top-shelf marijuana.

The plants grow to enormous sizes in quick time. This is a true “beaster” strain.

⚖️ Hefty yields. Blue Dream’s large flowers shine in a thick coat of crystals with blue and purple hues.

Mold resistance is well above average, but make sure to give this strain some extra care and attention towards the end. The resulting A-grade buds will definitely impress you.

An extremely easy to grow strain from seed and clone.

Some are against growing something so popular, but people love smoking Blue Dream and will continue to buy it—a constant demand needs a constant supply.

Genetics Blueberry x Haze
Flowering Time 65–70 days
Pack Size 5/10/20 seeds
Yield Indoors: 350–500 g/m2
Outdoors: 2–3 kg/plant
Mold Resistance

Buy Blue Dream Seeds

South African Kwazulu

Kwazulu is a landrace sativa that grows a giant dominant cola packed with big stinky buds. This real mold resistant strain is suitable for cultivation outdoors and indoors. Kwazulu is one of the few pure sativas that can compete with the best marijuana strains of today’s market.

The plants have the potential to grow huge. Provided with a long vegetative growth cycle, they turn into trees.

⚖️ Yields are well above average, more than most landrace types. The buds are unusually large, so it’s a real eye-catcher with bag appeal.

It thrives outdoors with high resistance to Botrytis cinerea (grey/blue bud mold) during flowering.

An effortless strain to grow with a pleasant taste and heady, energetic buzz. Great genetics for breeding.

My last Kwazulu plant got drenched in a 10-day tropical rainstorm right before harvest. After the storm, there was no mold damage, simply a few brown spots of rot had to be picked out. A rugged strain indeed.

Genetics South African landrace sativa
Flowering Time 8–9 weeks
Pack Size 3/7/10/12 seeds
Yield Indoors: 350 g/m2
Outdoors: 450–500 g/plant
Mold Resistance

Buy South African Kwazulu Seeds

Granddaddy Purple

Granddaddy Purple, aka Grand Daddy Purps or Ken Estes GDP, is the best choice for growers who want generous yields of high-grade purple weed. These famous West Coast buds are saturated in trichomes and packed with sugar leaf, resulting in very sticky trimming scissors . Get a good whiff of this stuff, and its strong smell will stay in your head all day.

The plants grow like short, bushy indicas at a moderate pace.

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⚖️ Yields are medium to high. Grand Daddy Purp is a heavy feeding plant, so ensure that plenty of nutrients are available for maximum returns.

This strain performs surprisingly well when faced with rain and high humidity. Air movement certainly helps.

Amazing quality and appearance. Purple colors come out late in flowering at cooler temps.

Granddaddy Purple buds are always in high demand. Thankfully, it’s easy to grow just about anywhere.

Genetics Purple Urkle x Big Bud
Flowering Time 7–8 weeks
Pack Size 5/10 seeds
Yield Indoors: 300–450 g/m2
Outdoors: 400+ g/plant
Mold Resistance

Buy Grand Daddy Purp Seeds

Pineapple Chunk

Pineapple Chunk is a productive sativa dominant hybrid cannabis strain that offers high yields of very marketable end product. Buy a few seeds to find a winner for cloning. These real-deal dank buds taste like the tropics and weigh out heavy on the weed scale.

The plants can grow into multi-pound bushes reaching heights over 10 feet tall. Indoor growers may consider flowering Pineapple Chunk early to keep it compact.

⚖️ Bumper crop yields. The buds are plump, heavy, and dense. Proper cultivation and care will secure an exceptional harvest.

It handles outdoor climates with finesse. A fast flowering marijuana strain.

Very easy to grow from seed. Suitable for beginners as well as the experienced cannabis cultivator. A hearty diet of nutrients is recommended for best results.

Some phenotypes have the pineapple fruity smell, while others have a more cheesy taste and aroma. All possess a heavy-hitting, stoney indica high. Hawaiian growers love this strain for their outdoor medical gardens.

Genetics Pineapple x Cheese
Flowering Time 55–60 days
Pack Size 1/3/5/10 seeds
Yield Indoors: 650 g/m2
Outdoors: 750 g/plant
Mold Resistance

Buy Pineapple Chunk Seeds

Wild Thailand

Thai strains are pure sativa landraces that grow into monster trees. They are some of the largest cannabis plants on earth. Connoisseurs prize this type of marijuana for its high THCV content, known to induce psychedelic effects comparable to magic mushrooms.

It grows very tall. These vigorous, stretchy sativas love to suck up the light.

⚖️ Yields can be massive, but so is flowering time. Not for the quick cash cropper, more for the enthusiast. World of Seeds sells a faster flowering Thai variety named Wild Thailand.

Ideal for tropical and subtropical climates (or temperate growers who are up for the challenge). Thai strains are some of the most mold resistant strains in the world.

The smoke from Thai strains is super smooth, making it great for fat bong hits. It has a unique musky flavor like lavender or exotic spices. Good cheap cannabis seeds.

The secret to harvesting top-quality Thai weed is—don’t pull early! The plants will turn yellow and drop their fan leaves during late flowering. Wait past this stage, and you’ll see what these buds are capable of.

Genetics Thai landrace sativa
Flowering Time 12–16 weeks or more!
Pack Size 3/7/10/12 seeds
Yield Indoors: 300 g/m2
Outdoors: 1200+ g/plant
Mold Resistance

Buy Wild Thailand Seeds

Super Lemon Haze

One of the most popular weed strains on the market, Super Lemon Haze is an 80% sativa hybrid for anyone who loves super flavorful cannabis. Its buds taste and smell just like real lemons.

The seeds grow big, woody plants with sharp, serrated-edged leaves.

⚖️ Excellent yield potential. The buds are lemony, fragrant, and pack a powerful stench that permeates bags. Beautiful, shiny, and dank.

It thrives outdoors and indoors, growing into a tree-type pattern. These sativa dominant buds are not overly dense, which helps them breathe in high-moisture climates.

Relatively easy to grow anywhere.

Super Lemon Haze won back-to-back first prize at the Cannabis Cup and has remained a top seller for over a decade at the best marijuana seed banks.

Genetics Lemon Skunk x Super Silver Haze
Flowering Time 9 weeks
Pack Size 5/10+10 seeds
Yield Indoors: 800 g/plant
Outdoors: 1200 g/plant
Mold Resistance
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Buy Super Lemon Haze Seeds

Bubble Gum

A classic fruity weed strain, Bubble Gum is a stocky 80% indica sporting lush, velvety flowers that taste identical to bubble gum when smoked. This cannabis variety is full of hybrid vigor.

The plants take on a broad, bushy stature, high in chlorophyll.

⚖️ A high-yielding indica strain. Its buds are soft as silk to the touch yet possess great density.

Try to keep Bubble Gum out of the rain. While it’s not the most mold resistant strain out there, it still does better than many other indica hybrids.

Easy to grow and easy to clone. It also loves growing under LED grow lights, forming up full, and finishing solid.

Bubble Gum cannabis seeds are a superb choice to buy if you want to grow a sugary sweet mold resistant strain.

Genetics Originated in Indiana, USA
Flowering Time 8 weeks
Pack Size 5/10/11/20 seeds
Yield Indoors: 350–500 g/m2
Outdoors: 450–550 g/plant
Mold Resistance

Buy Bubble Gum Seeds

Blue Widow

Blue Widow is a colorful marijuana plant with an intoxicating flavor—chronic weed that tastes great right down to the ashes. This 50% indica/50% sativa hybrid is so good that there’s a local on the Big Island with the nickname Mr. Blueberry Widow.

The plants generally grow short and bushy. Blue Widow is great for guerrilla growing plants in the bushes or indoor grow rooms and greenhouses.

⚖️ Sizable yields. The buds possess a distinct strong, piney widow smell combined with a blueberry fruitiness.

A fairly mold resistant strain when grown with care. Even faced with Hawaii’s high humidity, Blue Widow buds hold up against Botrytis mold and powdery mildew.

Brilliant color changes happen during the end of flowering. Its high potency, excellent bag appeal, strong aroma, and sugar-coated THC glaze make this strain a winner.

Blue Widow does well grown from seed outdoors and indoors, having earned a spot in many medical marijuana gardens worldwide. More stoney than you might expect, Blue Widow’s powerful effects hit hard and fast.

Genetics Blueberry x White Widow
Flowering Time 8–10 weeks
Pack Size 10–500 seeds
Yield Indoors: 400–500 g/m2
Outdoors: up to 1100 g/plant
Mold Resistance

Buy Blue Widow Seeds

Early Pearl

Early Pearl is a classic variety from The Seed Bank catalogs. The end product is light green in color, extremely pungent, and super dank. Outdoor growers have mass-produced the Early Pearl strain for decades. People tend to call it whatever they want, meaning you may already know this strain under a different name.

The seeds grow fast, producing short, stout plants that thrive basically anywhere—outdoors, indoors, in grow tents, and in greenhouses.

⚖️ Plentiful yields. The buds are skunky, pungent, and have excellent bag appeal.

One of the first strains to be noted as an “early mold resistant variety”.

Its fast flowering time works great for quick-cycling of seeds and clones.

Stoners looking for stinky, dank, cat piss marijuana will be pleased with Early Pearl.

Genetics Originated in the West Coast
Flowering Time 60 days
Pack Size 10 seeds
Yield Slightly above average
Mold Resistance

Buy Early Pearl Seeds

*Bonus: Purple Kush

Purple Kush is an award-winning indica proven to be a reliable seed strain for both outdoor and indoor growers. Coming straight outta Cali’, this strain represents some of the best purple weed on the West Coast.

The plants grow bushy with large leaves in a typical indica fashion, up to 7 feet tall. Each phenotype shows unique colors, from green and purple to intense violet.

⚖️ Yields are high. The buds have a beautiful dark appearance and fruity grape flavor.

A resilient, mold resistant strain in most settings. Protect it from rain for best results.

Breeds strong hybrids and clones easily—cuttings root fast in aero cloners.

Purple Kush is a great strain to grow from seed for anyone who loves Kush and purple bud.

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Genetics Hindu Kush x Purple Afghani
Flowering Time 8 weeks
Pack Size 5/10+10 seeds
Yield Indoors: 400–500 g/m2
Outdoors: 600 g/plant
Mold Resistance

Buy Purple Kush Seeds

Mold Resistant Strains Weed Blog

Discover more of the best cannabis seeds for sale on the Mold Resistant Strains Weed Blog. We’ve got everything from pure indicas and legendary sativas all the way to the highest-yielding and most desirable hybrids of today.

Topics include organic and non-organic methods of cultivation, indoor and outdoor growing, marijuana strains, breeding, reviews. Sativa and indica. Hybrid, landrace, and IBL. Feminized, regular, and autoflowering seeds. Best seeds for yield, ease of growth, speed, affordability, and purple buds. Mold resistant strains, powdery mildew resistant strains, and how to stop mold and mildew. Hash and rosin production. Cannabis fertilizers, LED grow lights, grow tents, bud trimmers and scissors, aero cloners, gram scales, as well as DIY instructions, supply lists, and other engaging cannabis niche content.

Disclaimer: Read your federal and state/county laws before buying seeds online. We do not promote or undertake in illegal activities.

Disclaimer: Hi, Jared Cox here. I am disclosing that I’ve included certain products and links to those products on this site that I will earn an affiliate commission for any purchases you make. My goal is to provide the best information for you while growing this site, but please understand I am doing this as a for-profit business. Please note that I have not been given free products, services, or anything else by these companies in exchange for linking to them on the site – the only consideration is in the form of affiliate commissions. Read our full disclaimer & privacy policy here.

Mould Resistant

Growing cannabis in legal territories and humid climates is challenging without good mould resistant strains. Many cannabis growers feel it is impossible to produce buds worth any value in wet weather. They will be pulling plants well before they are finished flowering and justify doing so by the bad weather. Early harvesting will produce shrunken yields and undeveloped buds that are difficult to market.

Fortunately, there are cannabis varieties adapted to wet conditions, which can even thrive in them. Several 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 to make it long enough to mature seed through their flowering process. Some great resilient weed strains can fully finish flowering in rough conditions outdoors and in the pouring rain.

Landrace Strains

A landrace is a cannabis strain bred naturally by seed in an area exclusively for many generations that have not been crossed with another variety. Inbred, this cannabis genetic has learned how to adapt to the local environment and prove stable, relatively uniform seed for breeding.

Landrace plants produced from seed are themed closely similar to each other and are ideal for breeding programs, often producing stable, vigorous, and resilient hybrids when crossed.

In a mould-resistant, hardy strain, you want to look for a genetic background from a wet climate. Parts of South Asia, South America, Central America, even certain parts of Africa all have wet environments where marijuana has been breeding for many generations.

Hybrid Strains

The offspring of two marijuana plants with different genetics is called a hybrid . Although plant genetics are not immediately stable once a strain is hybridized, hybrid strains can have many advantages to the grower.

A hybrid can have the bud qualities of an i ndica while taking the more prominent stature of a sativa.

Hybrids make up most of the genetic stock of cannabis nowadays. Nearly all popular modern strains are hybrid. For the best defence against wet, humid climates, productive hybrid strains are bred from mould-resistant or rainy climate landrace strains.

Check our blog post on the best tips to prevent disease, fungi and pests.