Young Thai Dragon Plant - Veins/Leaves Turning Black

15 years ago

i just started growing a thai dragon recently and some of my leaves are starting to turn a black color (might be deep deep red or purple) its not spots or lesions. it seems to be inside the veins of the leaf and stems. any ideas?

i included some pictures. they should be clear enough to figure out what is wrong. i should also give a brief description of how i went about doing this. first, i should say it was my first time growing anything. :) i used seed starting soil, cut a milk carton, bought one 2700k CFL and one 6000k CFL. waiting till i saw some sprouts and then applied light ~15hrs/day. i only water when the top portion of the soil is dry to the touch and i use miracle grow every other watering.

FYI: i have not started with real sunlight yet nor have i transferred the plant to regular soil. is it time for these things to be done?

things were going beautifully and then that black stuff started to grow into the veins of the leafs. looks to me like it started from the tips.

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Comments (3)

shelbyguy
15 years ago
Your plant wants phosphorous and nitrogen. There is almost no nutrient in a seed starting mix, and your plant is asking you nicely for fertilizer.

Increase the frequency or strength of your fertilizer regimen.
habbob
15 years ago
Shelbyguy nailed it. Seed starting mix has very little nutrients so you don't "nuke" the seedlings (over fertilize). Although they can grow quite a bit in this mix, I prefer to transplant to regular soil as soon as the first set of true leaves are out. Be gentle at this point as they are quite delicate, but they will thank you later. Other than that your plants look happy. Thai Dragon is a hearty plant. They were one of the few plants to survive last years exceptionally cold/wet winter here. They were making fruit the entire time too, although it ripened very slowly.

-HabBob
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qcubero
Original Author
15 years ago
sorry it took so long to get back to you guys, but i wanted to thank you very much as my plant is very healthy now!

the only problem im having now to how to get light to the bottom portion of the plant. it a little cold here to be putting them outside, so im having to move the lamp from facing straight down to facing to the sides. not sure if this will help any, but we will see.

the important thing is its turning green again! woohoo!!!