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Cal mag deficiency? White leaves
gottagrowsometimeanswered grow question a year ago
Hmmm..
1stly calmag would be fade in-between the vains (that'll be mag) also few other sym. And cal would show like rust spots in groups.
So not a full calmag.. it looks like mag in a way but also not.
It could be sun burn. I see that plastic tarp? If you had a your plant blocked out for hrs and then it the throws of the roaring hot day took the tarp down. That could be a cause. But it would have to be like going from fully shaded out to 28-30 with mad lux. Just my guess.
You can apply Epsom salt for mag just incase, but again Idt its that.
Good luck
Dmeshanswered grow question a year ago
Gottagrowsometime, Thanks for the quick reply! The tarp is just to block the wind and doesn’t put it in shade at all.
The plant was tall and thin when it was young from being indoors and not getting enough light, so maybe it’s not used to full sun all day. The newer leaves that grew while outdoors at the top are nice and green still
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