Best Mold-Resistant Cannabis Strains in 2024

Last updated Jan 06, 2024

by Nebula Haze

We’ve written quite a bit about how mold and bud rot can infest your cannabis plants, but we thought it might be helpful to provide a list of some mold-resistant strains! Good genetics help protect weed plants from bud rot and other molds.

No more marijuana mold or bud rot!

No more mold or bud rot for your cannabis plants!

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 for being grown indoors:

  • Purple Ghost Candy – This plant grew bigger than expected, but it was able to stay close to the super powerful LED grow light without any issues, so its bigness only increased the yields. This strain never seems to suffer from bud rot or mold, despite the big yields, even when it attacks other plants right next to it. The buds are also extremely potent. Highly recommended as a mold-resistant cannabis strain.

Purple Ghost Candy - This plant grew a big bigger than expected, but it was able to stay close to the grow light without any issues, so that only seemed to increase the yields. We've noticed that this strain will never get bud rot or mold even when other plants in the same condition suffer from bud rot. The buds are also extremely potent. Highly recommended as a strain.

  • Moby Dick – Easy to grow, mold-resistant, and 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 90s. Great yields, too!

Moby Dick cannabis cola - although buds get huge and dense, they've very mold resistant!

  • Sweet Tooth -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

The cannabis strain known as Sweet Tooth is becoming increasingly popular!

  • Glookies strain is resistant to mold and poor environmental conditions. This one survived excessive heat and high humidity to produce great yields with strong bud effects.

Other popular indoor mold-resistant strains:

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 for being grown outdoors:

  • Blue Venom – A G13 Labs strain that is resistant to mold and produces beautiful bud quality.

  • Holland’s Hope – 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.

An outdoor "Holland's Hope" cannabis plant in the vegetative stage. This strain thrives outdoors!

  • Frisian Dew – 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 most purple buds if plants in the flowering stage are exposed to very sunny weather with many hours of direct sunlight each day. Another way to help increase the overall amount of purple is to ensure plants get cool temperatures at night. Essentially, a big fluctuation in temperature between day and night enhances purpling. This strain is very well suited to outdoor growing, even in northern climates, and is especially resistant to mold.

A Frisian Dew cannabis plant - all the buds have turned vibrant purple!

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

Example of an outdoor Frisian Dew cannabis plant with dark purple buds

Other popular outdoor mold-resistant strains:

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).

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

 


 

More resources to help you in your fight against mold!


 

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