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Grow QuestionsCalcium deficiency

Calcium deficiency

blackrainstarted grow question 4 years ago

I already had a question a week ago, now it's easier to see, camera still bad. But here are some fan leaves which I believe are showing a calcium deficiency. Calmag is in the post, just waiting for it. Is it for sure a calcium deficiency only? Thoughts?

blackrain

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Leaves. Color - Dark-brown

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GaiaGreenGiantanswered grow question 4 years ago

Rust spots on leaf edges and veins, Slowed growth, new twisted leaves, brittle stem. If you have one or more of these symptoms you likely have calcium def. Analyze root PH first and foremost and correct if necessary. An acidic soil with PH at or below 6.2 can easily develop cal def. Aim for 6.5-6.8. If PH is good then proceed with calcium supplement as per directions. Too much Potassium Can also trigger a cal. def. Cheers 🍻

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GaiaGreenGiantanswered grow question 4 years ago

For sure you can fix by giving calmag product, but it will not build your organic soil. Can also top dress with garden lime at a rate of 1 tsp -1 tbsp per gallon to balance your PH and provide calcium all at once. Cheers 🍻

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blackrainanswered grow question 4 years ago

@Cabbagepatch , my waterings have been between 6.1-6.3ph, I got calmag in the post, I do have ph up/down but I've read just to let the soil do it's thing, especially since it's organic. Think I should just add calmag with it's next feeding as soon as it comes, I've gave it a regular watering since.

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