Purple Stems in plants

I transplanted my seedlings into these 1 gallon (2.9 Qt) pots almost 2 weeks ago. Ive topped them 2 days ago but the purple started before that. Ive watered less than normal due to having overwatered recently. But not to the point of them wilting before ill water. My guess was mag deficiency. Ive added cal mag and small amount of epsom salt to last feeding/water 2 days ago. I will be transplanting to 5 gallons in few days. Im worried about them Please help

Fox Farm Ocean Forrest
HLG 350R Diablo
Temp: 73f
Humid: 59
4 weeks veg
X2 Bahama Berry x2 Pasture Bedtime
X1 Bananacane x1 LPCxWT
Water 300ppm no added fert.
2x4 Tent
Fresh air intake & Exhaust




5 Likes

Purple stems are perfectly normal.

Your plants look great.

9 Likes

I second that. The problem with chasing mag and purple stems is you have to watch the calcium ratio too. Too much mag will overcrowd the calcium and cause bad purple hollow stems.

So many strains are bred for purples now that it’s pretty common to see it in the stem.

6 Likes

High power LEDs will turn them, mine get sunburned often. Some strains do it regardless. If the rest of plant looks healthy and growing well, pay them no mind.

6 Likes

Honestly can’t recall a plant I’ve grown that hasnt done that to at least some extent its fine if tge rest of the plant is healthy

1 Like