Pic is very dry and droopy Habanero, yet leaves still with Edema spots. Obvs, the damage stays.

So. I have grow tent 9×9. One inline output fan, not enough cfm (upgrade fan, and +2, air circulation fans ordered and arriving soon). Humidity 41%, temp lights on 84°, VPD 2.15 kPa, per AC Infinity sensor (Is it accurate?) Had problems with not fertilizing correctly. That seems to be sorted. Now, my plants all have Edema, some worse, some minor. In particular I have been advised to water less. I put my forearms deep into the soil today, and the soil is bone dry. I selectively watered, lightly, the plants most dry, and droopy.

Do I pluck all the bad leaves? Did I just mess up the watering and it should return to normal growth after watering properly?

Even before this, I was watering less, and still had Edema. Problem with sudden fertilizing shock? Problem with VPD? I have been reading that MJ plants like up to 65% humidity during flowering…, does my lower humidity hurt VPD? Obviously I need to read about this, but I don't think my watering habits are the main culprit at least.

by MelodicAd2149

10 Comments

  1. MelodicAd2149

    I know it might not make sense my comment about my watering habits not being the main problem. Why then, when I started the plants in a seedling starter kit with humidity dome etc… where the humidity was routinely 80%+, did they never show signs of Edema??? In fact they looked super healthy.

  2. goosey814

    This needs water bad, looks like its droopy from either a transplant or too much light. My room i have a dehumidifier running constantly so that shouldnt be a problem. Might just be overthinking and trying too too hard LOL

  3. sparkle_slug

    If it gets too dry, it will resist absorbing water. You don’t water often but when you do it needs to soak through completely. If your mix drains well then there shouldn’t be any problems. Fertilize lightly on a regular basis

  4. theegreenman

    Did you bury it too deep and then overwater? Then underwater?

    Over watering can kill fine root hairs that take up water, then under watering causes even more problems.

  5. Hour-Firefighter-724

    Was there a necessity in letting the plant drain?

  6. Ornery-Creme-2442

    Edema can be the result of too much fertilizer and most importantly inconsistent water. If you get a sudden flush of water then risk is higher.

  7. miguel-122

    Ive grown a few peppers indoors and noticed some types are more sensitive to edema. I dont try to fix edema. Just try to balance feeding and watering. Make sure water drains easily and runoff is removed.

  8. toolsavvy

    Clearly you need to water more frequently and water immediately. You say the soil is bone dry, arm deep, so each pot of that size needs at least a half gallon of water right now, possibly even a full gallon.

    As far as the edema, I have no clue as I have never had that problem. But if you don’t keep them hydrated properly and get that problem fixed now, you won’t have to worry about fixing the edema because your plants will be dead.

    If those are concrete or clay posts, ditch them. They are tricky because they absorb moisture from the soil and that absorbed moisture will never be given back to the soil if the moisture in the concrete/clay is allowed to evaporate. Concrete (and possibly clay) pots can also post other issues, like changing the pH of your soil making it too alkaline, which then can mess with the plant’s ability to update nutrients no matter how much you fertilize.

  9. ApprehensiveSign80

    Edema will not go away but if you’re not noticing on new leaves you’re good, still need to water the plant. If you have no fan and/ or airflow that’s your issue not watering

Write A Comment