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Offlinejisiy72149
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Registered: 10/27/20
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Pereskiopsis yellowing, slow growth
    #27006609 - 10/27/20 03:43 PM (3 years, 3 months ago)

I'm attempting to grow pereskiopsis indoors under a Quantum board type LED grow light rated at 150 watts.

Picture link

As you can see I'm having a lot of trouble. The healthy green growth at the very base of the pereskiopsis is from a rooted cutting. The skinny section represents a few months of new growth under the grow lights. The lower leaves consistently yellow and fall off, and the thickness of the new growth is terrible.

Lights are set to a 14 hour cycle about 18" away from top of the plant at about 50% power. I've been watering 3-4 times a week, but over the past few weeks I've cut back to 1 day a week because someone suggested I may be overwatering. It hasn't made a difference. I've also been fertilizing for the past 4-6 weeks, also made no difference.

Any ideas on what I'm doing wrong?


Edited by jisiy72149 (10/27/20 03:44 PM)


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Offlineislanduniverse
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Re: Pereskiopsis yellowing, slow growth [Re: jisiy72149]
    #27007332 - 10/27/20 10:03 PM (3 years, 3 months ago)

yeah what kind of soil mix you got there, maybe too much water, and don't fertilize them

i think they want some sun, clearly the tops aren't showing any growth

when they are healthy they will bloat up some more and the leaves will be more rigid, and the tops will have upward pointing leaves with bright green healthy color


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Offlinejisiy72149
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Re: Pereskiopsis yellowing, slow growth [Re: islanduniverse]
    #27007673 - 10/28/20 06:09 AM (3 years, 3 months ago)

Quote:

islanduniverse said:
yeah what kind of soil mix you got there, maybe too much water, and don't fertilize them

i think they want some sun, clearly the tops aren't showing any growth

when they are healthy they will bloat up some more and the leaves will be more rigid, and the tops will have upward pointing leaves with bright green healthy color




I'm using regular potting soil without any additives like perlite, etc. Really, more sun? I figured this grow light would be more than sufficient. Under the same light I have some trichocereus seedlings that are growing very nicely, healthy green and fattening up after only 4 months from seed.


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OfflineDancingWolf
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Re: Pereskiopsis yellowing, slow growth [Re: jisiy72149]
    #27008737 - 10/28/20 04:09 PM (3 years, 3 months ago)

A whole lot more sun. I grow mine outside in a mix of part shade, and full 12+ hour scorching sunlight. It's a sun plant but can grow in windows.


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Offlinejisiy72149
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Re: Pereskiopsis yellowing, slow growth [Re: DancingWolf]
    #27009678 - 10/29/20 05:51 AM (3 years, 3 months ago)

Wow, that's surprising. Hypothetically if I wanted to grow this indoors -- I don't, this is impractical -- what kind of lighting would it need to thrive? Like a 240 W quantum board or equivalent 600 W HPS?


Edited by jisiy72149 (10/29/20 05:52 AM)


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InvisibleHans Wermhat
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Registered: 06/10/19
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Re: Pereskiopsis yellowing, slow growth [Re: jisiy72149]
    #27010869 - 10/29/20 05:41 PM (3 years, 3 months ago)

It's normal for them to lose their lower leaves, just how it is. I'm gonna go against the grain and say that lighting isn't the issue. Your internodal distance is excellent (no elongation/stretching of the stem). What's the temperature in the room? Pereskiopsis strongly prefers higher temperatures. Anything less than 80F and the growth rate suffers. just my 2 cent tho.


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Offlinejisiy72149
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Re: Pereskiopsis yellowing, slow growth [Re: Hans Wermhat]
    #27011503 - 10/30/20 05:07 AM (3 years, 3 months ago)

Quote:

Hans Wermhat said:
It's normal for them to lose their lower leaves, just how it is. I'm gonna go against the grain and say that lighting isn't the issue. Your internodal distance is excellent (no elongation/stretching of the stem). What's the temperature in the room? Pereskiopsis strongly prefers higher temperatures. Anything less than 80F and the growth rate suffers. just my 2 cent tho.



About 72-74 F in the day, 70-72 F overnight.


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OfflinePOWAtrippinDiscord
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Re: Pereskiopsis yellowing, slow growth [Re: jisiy72149]
    #27012086 - 10/30/20 12:58 PM (3 years, 3 months ago)

This is a nutrient related issue.  Leaves will die off due to cold, sure, but i doubt comfortable temps will do this.  I prefer to keep pereskiopsis in lower light conditions so they don't put out giant thorns.  Assuming you want these for grafting, its often good to let them etiolate a bit and the stems to thin.

Look at the redness of the stem, look at how even the new growth is more yellow green than straight green.

Mobile nutrients get taken from older leaf growth to sustain new growth.  Which nutrient is responsible is hard to say due to coloration being blown out.

Water with seaweed kelp extract, and a light (1/4 recommended) dose of something with a decent amount of NPK.  You should see a difference within 3 days


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Offlinejisiy72149
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Re: Pereskiopsis yellowing, slow growth [Re: POWAtrippin]
    #27012125 - 10/30/20 01:15 PM (3 years, 3 months ago)

Quote:

POWAtrippin said:
This is a nutrient related issue.  Leaves will die off due to cold, sure, but i doubt comfortable temps will do this.  I prefer to keep pereskiopsis in lower light conditions so they don't put out giant thorns.  Assuming you want these for grafting, its often good to let them etiolate a bit and the stems to thin.

Look at the redness of the stem, look at how even the new growth is more yellow green than straight green.

Mobile nutrients get taken from older leaf growth to sustain new growth.  Which nutrient is responsible is hard to say due to coloration being blown out.

Water with seaweed kelp extract, and a light (1/4 recommended) dose of something with a decent amount of NPK.  You should see a difference within 3 days




What's your watering frequency like? I was fertilizing with Schultz Cactus Plus 2-7-7 (diluting it 2 droppers per gallon of water.) It didn't seem to help any, but I can try it again with a different concentration of fertilizer.


Edited by jisiy72149 (10/30/20 01:17 PM)


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InvisibleFeroxx
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Re: Pereskiopsis yellowing, slow growth [Re: jisiy72149]
    #27012186 - 10/30/20 01:51 PM (3 years, 3 months ago)

it seems like it is rootting from the base of the branch ? i need a good pic in natural light


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OfflinePOWAtrippinDiscord
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Re: Pereskiopsis yellowing, slow growth [Re: jisiy72149]
    #27012231 - 10/30/20 02:14 PM (3 years, 3 months ago)

Well my watering frequency will not equate to your watering frequency unless our soil mix, rh, temps, etc are all exactly alike.  The red stems and coloration of your plant remind me of N  deficiencies (leaf color and the tips look lighter... at least from my house), as well as micronutrient def (stems).  If it was me I would probably follow the higher concentration instructions for at least 1 feeding, and get some kelp extract for micronutrients and trace minerals.



I water 1-2 times a week, and I feed when I need to, but have a fair amount of perlite in my soil.


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Don't believe everything you think.  TRADE LIST

‹Sell Your Soul› You know this place is owned and operated by the Illuminati, right?
‹lsdwithme› i possibly just smoked a rat turd :facepalm:


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Offlinejisiy72149
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Re: Pereskiopsis yellowing, slow growth [Re: POWAtrippin]
    #27015438 - 11/01/20 09:49 AM (3 years, 3 months ago)

Sorry for the low quality picture, here's some new photos without HDR and with lighting more representative of real life.

https://i.imgur.com/a41bx6X.jpg
https://i.imgur.com/3kOSh5S.jpg
https://i.imgur.com/jrwE9fj.jpg

Yes, I think the new growth did try to root (those dangling tongue-like things) but these runners haven't grown in a while. The new growth has a slight red tinge and looks kind of woody, although the newest new growth appears greener and healthier.

I'm going to try more fertilizer and see if that works. Thanks.


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