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white stuff coming out of cannabis seeds

Excess moisture from overwatering or high humidity are normally the culprits of damping-off. Check your substrate often to observe if the moisture levels are adequate. Avoid too-frequent watering and make sure that your pots or plastic cups allow for fast and easy drainage. If you use a greenhouse or grow-tent with a cover for cuttings, ensure there is a vent on top that allows for proper ventilation. If there is no vent, remove the cover regularly. Always keep in mind that warm and humid means an increased risk of fungus and damping-off.

Damping-off is a common plant disease that can affect newly sprouted seeds, seedlings, and cuttings. Since the disease appears very early in your marijuana plant’s life, they won’t be able to recover. Learn what causes damping-off, as well as how to spot it and prevent it from happening to you.

Damping-off is a common disease that can affect sprouting seeds, seedlings, or cuttings. It can be caused by several types of fungi, namely Pythium, Botrytis, and Fusarium. Pythium is most common. Although fungus is the main reason for damping-off, the disease is normally the result of several conditional factors.



When a seedling has already toppled-over from damping-off, there is nothing you can do to recover it. The best you can do is quickly remove the affected seedling together with its cup to prevent the spread of disease to other seedlings.

Tip: Fungus gnats, which are tiny, dark, mosquito-like gnats, often appear when moisture and humidity levels are too high. Do not worry so much about getting rid of the gnats, but see them as a sign that something is off with the moisture content in your growing environment. The gnats will disappear on their own when moisture levels in the soil return to normal.

Lastly, another factor that can contribute to damping-off is excessive humidity in your growing environment, most-often paired with a lack of adequate air circulation.

LED lights are a relatively modern development in the world of cannabis cultivation. These light sources utilise specific spectrums of light aimed and optimising cannabis growth. Gress came to the conclusion that her new LED set up triggered white tips to form, and other growers that experience white tips report the same.

After reviewing the pictures, Montoya noticed that—despite their bright white appearance—both the buds and the plants as a whole looked healthy. He simply informed Gress that the colour seemed to be a result of a massive productive of trichomes—which stirred plenty of excitement!

You’re probably familiar with the small crystal-like dots visible on the surface of cannabis flowers. These are the trichomes—small mushroom-shaped glands that exude a viscous resin. This substance contains a vast array of interesting chemicals, including cannabinoids and terpenes. In nature, these substances help plants to protect themselves against insects and extreme temperatures. For us humans, they serve as the source of chemicals that underpin enjoyable recreational highs and relief.

White Tips vs Heat Stress & Bleaching

Although burned plants look dissimilar to true white-tipped specimens, bleached buds look much more alike. Bleaching also occurs due to heat stress, but flowers look much more healthy at first glance. Bleached buds also possess bright white tips, but not because of increased trichome production. Rather, the actual tissue of the flower turns bright white.

So, why have bright white tips suddenly started popping up over the last few years? The answer seems to lie in new growing technologies that have managed to unlock this botanical trait. Although numerous growers have reported white tips, the occurrence started to enter the mainstream when a grower, photographer, and scientist joined forces to get to the bottom of it.

Remember, whites tips aren’t always a sight to behold. Sometimes, they can indicate stress and damage. If colas are left to grow too close to a light source, they’ll be exposed to uncomfortable levels of heat. This can literally “burn” the tips and result in a white discolouration.

LED lights also offer a range of additional benefits, including:

Not true I have had white seeds sprout before that were really premature. The only way to tell if a seed is good is to germinate it. I never got where this came from.

I think the question here is, "Short of trying to germinate it, is there any good way to determine if a seed is viable"?

Not true I have had white seeds sprout before that were really premature. The only way to tell if a seed is good is to germinate it. I never got where this came from.

Well-Known Member

Why would your fingers mushing a seed be a good way to tell if it is viable?

Any seed could crack if you squeeze it hard enough.

I think the answer to that is "no".

Why would your fingers mushing a seed be a good way to tell if it is viable?