Hoyas forum→Baby Hoya Imperialis Red slowly withering

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icantevenhoyabro
Jan 31, 2021 8:35 AM CST
Hi guys,

I'm new into the world of Hoyas.
I got my hands on a Hoya Compacta and a Hoya Imperialis Red in December (ordered them from a website in my country).
Got them repotted a couple weeks after they arrived (it was recommended I do that on their website, since it's the cold season and it was meant to ease them into the new environment).
It's been more than a month since I've repotted them, but the Imperialis is now showing signs of withering (I think?).
Some leaves are getting dry and yellow, there's been no new growth of any kind.
I've been trying to be gentle with the watering, only a small cup once a week, since it's cold, trying not to overwater it.
The soil was bought along with the flowers, website said it's specially designed for the Hoyas (felt very airy when I potted them, so I know for sure the roots aren't strangled by hardened soil).
They're on the balcony, no direct sunlight, away from the heater, but temperatures in there vary between 15-20C (59-68F) as the windows are sometimes open (kitchen opens in the balcony). Not much of an option to move it in another room, as my bf's mom opens the windows every day and the temperature swing is even higher.

I'm not entirely sure what I can do save it, I'd appreciate some help with this.

Here are some pictures from today:
(one of the leaves was damaged during transport I think, and half of it dried and came off last week)

Thumb of 2021-01-31/icantevenhoyabro/52b896
Thumb of 2021-01-31/icantevenhoyabro/89e2f2
Thumb of 2021-01-31/icantevenhoyabro/579186

At least the Compacta's leaves are still green, looking healthy I guess, none withered; even thought it hasn't had any growth either not even a small leaf..
Name: Lin Vosbury
Sebastian, Florida (Zone 10a)

Region: United States of America Region: Florida Charter ATP Member I was one of the first 300 contributors to the plant database! Million Pollinator Garden Challenge Garden Procrastinator
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plantladylin
Jan 31, 2021 10:21 AM CST
Hi icantevenhoyabro, Welcome!

I no longer grow Hoya (Hoya imperialis) but I do have several other Hoyas that I've had for years. Hoyas prefer to be tightly potted with a light chunky potting mix that offers good air circulation around their roots and they require bright light and consistently warm temperatures, away from any cold drafts. It's normal for plants to be resting at this time of year so I wouldn't expect to see any growth but once summer arrives, the plant should visibly put on new growth and begin to take off.

To my eyes, the pot that your Hoya is in appears too large; pot size should be only large enough for the root mass to fit snugly. The soil you are using may be too water retentive which is not conducive to a healthy Hoya. 1 cup of water a week seems excessive and may be the issue with the yellowing leaves. Temperatures of 15-20C (59-68F) at the low point of what is optimum.

I'm sure others will be along to offer advise and suggestions before long.
~ I'm an old gal who still loves playing in the dirt!
~ Playing in the dirt is my therapy ... and I'm in therapy a lot!


Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
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DaisyI
Jan 31, 2021 12:51 PM CST
Welcome!

After you water, I assume the pot is heavy. How long does it take for the pot to feel light again? When you do water, do you make sure all the soil is moistened?
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost

President: Orchid Society of Northern Nevada
Webmaster: osnnv.org

icantevenhoyabro
Feb 1, 2021 2:28 AM CST
Hello plantladylin and DaisyI,

Thank you for the warm welcome!

In regards to the pot I used - would it be alright to change it again? Will it annoy the plant if I do it again so soon? I do have smaller ones that would probably have the roots snuggle a bit inside. Should I do the same for the Compacta? It has a pretty much same size pot and the flower is just as tiny :(

The soil mixture says it's made of uhhh 'small caliber pine bark', coconut fibre compost, perlite, pumice (I hope that's the right word), some sort of peat and some more coconut fibre made from the shells. I apologize if any of this doesn't make any sense, please feel free to let me know if some of these words are bogus, had to use google translate on a few. Sticking tongue out

Here is a picture of the soil, maybe it helps:

Thumb of 2021-02-01/icantevenhoyabro/092344

In regards to watering - it doesn't really feel that heavy tbh. The amount of water I give it is maybe about 130-150ml (Google says 4-5 fl oz or 0.5-0.6 US cup). I try to make sure I pour it around evenly and then I basically let the pot drip away any excess for a couple minutes and settle the plant back down. And this is once a week. The soil absorbs it instantly and water goes whoosh on the other side in maybe 5-10seconds.

Thank you very much for your replies so far, makes me feel a bit better knowing the temps are not that hard on the little one (even if barely) and the growing (or lack thereof) is also normal during this season.
Name: Lin Vosbury
Sebastian, Florida (Zone 10a)

Region: United States of America Region: Florida Charter ATP Member I was one of the first 300 contributors to the plant database! Million Pollinator Garden Challenge Garden Procrastinator
Birds Butterflies Bee Lover Hummingbirder Container Gardener Houseplants
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plantladylin
Feb 1, 2021 11:39 AM CST
That potting mix sounds perfect. Thumbs up I think the pot size will be okay but one cup of water a week is likely keeping the soil too wet. At this time of year plants are fairly inactive and require less water so you will need to adjust your watering routine, allowing more time for the soil to dry a bit before adding more water.

Keep us posted on how your Hindu Rope Hoya (Hoya carnosa 'Compacta') and Hoya (Hoya imperialis) are doing!
~ I'm an old gal who still loves playing in the dirt!
~ Playing in the dirt is my therapy ... and I'm in therapy a lot!



icantevenhoyabro
Feb 2, 2021 2:01 AM CST
plantladylin said:That potting mix sounds perfect. Thumbs up I think the pot size will be okay but one cup of water a week is likely keeping the soil too wet. At this time of year plants are fairly inactive and require less water so you will need to adjust your watering routine, allowing more time for the soil to dry a bit before adding more water.

Keep us posted on how your Hindu Rope Hoya (Hoya carnosa 'Compacta') and Hoya (Hoya imperialis) are doing!


Understood, I'll tone down the watering on both.
The Compacta has a slightly smaller pot, but seems to be doing ok in general. It had a little growth when it came but since dried off - I assume issues with the temperatures during transport, or also overwatering...

Thumb of 2021-02-02/icantevenhoyabro/787963

Thumb of 2021-02-02/icantevenhoyabro/869641

Will bring another update on the tiny ones, hopefully no more yellowing for the next weeks.

You guys have been of great help, thank you for your patience with a noob and your advice! Smiling
Name: Mugsie
Eastern PA (Zone 6b)
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Mugsie
Feb 3, 2021 4:04 PM CST
I think you people nailed it. The potting mix looks good, but I'm betting it's staying too moist for this time of year, and because the roots haven't filled the pot yet, it's just not drying enough before it's given another shot of water. What everyone above has suggested should do it.
Best of luck with both of them.
My wish list plant is an imperialis - once it stops snowing! 3 days straight now! Ugh!
Name: Omie
New York state (Zone 5b)
Beekeeper Cat Lover
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Omie
Mar 26, 2021 8:19 AM CST
I'm not so sure the poster is overwatering.
I get the impression they are not in US since they are using Celsius and ml in measurements.
They say they add "a small cup" of water once a week and that the water goes right through and out the drainage hole within 5-10 seconds. Their soil is a good hoya mix that drains well.
They explained that their 'small cup' is: "The amount of water I give it is maybe about 130-150ml (Google says 4-5 fl oz or 0.5-0.6 US cup)"... so they are actually watering a well drained pot once a week with about 1/2 cup in terms of US/ounces, only about half of a typical 8oz cup. Is that really an overwatering problem for what look to be rooted cuttings in well draining bark /hoya mix?

icantevenhoyabro
Mar 27, 2021 10:48 AM CST
Omie said:I'm not so sure the poster is overwatering.
I get the impression they are not in US since they are using Celsius and ml in measurements.
They say they add "a small cup" of water once a week and that the water goes right through and out the drainage hole within 5-10 seconds. Their soil is a good hoya mix that drains well.
They explained that their 'small cup' is: "The amount of water I give it is maybe about 130-150ml (Google says 4-5 fl oz or 0.5-0.6 US cup)"... so they are actually watering a well drained pot once a week with about 1/2 cup in terms of US/ounces, only about half of a typical 8oz cup. Is that really an overwatering problem for what look to be rooted cuttings in well draining bark /hoya mix?


Hi there!

First off - yep, I am not from the US, but somewhere in central Eastern Europe. I tried my best to convert the temperatures and whatnot though!

In regards to overwatering, I did end up cutting down on it. Over the past weeks, after I posted here, I think I watered it with about the same amount of water, but every 10 days or so. I made sure the pot was pretty light; sometimes scraped off a tiny bit of soil at the edge of the pot (far from its current small roots) and checked if it was still damp. :D

To be completely honest, I think I might just have been a bit too scared :D I had never owned a Hoya before and it probably was a bad idea to order them during winter, when they seem to be stagnant, AND I don't have enough knowledge on how to care for them. They might have just been under stress from transportation in what was maybe -10 to 0 degrees C (approx 15-30 F) during those days. They came well packed with layers and layers of stuff around them but yeah.

As a small update, they seem to be doing fine nowadays! The Imperialis shed off its biggest leaf and hasn't shown any new growth yet, but there isn't any other 'damage', like other leaves going down. The tiny leaves at the top are half-dried since forever so I'll just leave them be.
The Compacta is on its way to be a superstar and decided to surprise me a couple days ago with a new tiny growth! Super stoked about it and can't wait to see it in action.

Here's some pictures! Hurray!

Thumb of 2021-03-27/icantevenhoyabro/670ef2

Thumb of 2021-03-27/icantevenhoyabro/762754

[Last edited by icantevenhoyabro - Mar 27, 2021 10:51 AM (+)]
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Name: Omie
New York state (Zone 5b)
Beekeeper Cat Lover
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Omie
Mar 27, 2021 11:16 AM CST
That's good news- I'm happy for you! :D

icantevenhoyabro
Jul 8, 2021 1:34 AM CST
Hello again!

Wanted to drop by and show off my almost-died-but-revived little plant Grin

The compacta was very generous these past few months and doubled its amount of leaves; still tiny, but definitely looking better.

Thumb of 2021-07-08/icantevenhoyabro/cdd989

The little imperialis went almost poof... until I started watering it more than usual. It seemed to like it.
It's gone down to 2 leaves and I thought I was going to lose it, but it made it through!


Thumb of 2021-07-08/icantevenhoyabro/05c396

They seem to really enjoy the warmer weather and the more water that comes with it Grin

Thank you, all of you who have answered here, and everyone else whose posts I might have lurked on. Thank You!

I hope you all have a great week!
Name: Omie
New York state (Zone 5b)
Beekeeper Cat Lover
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Omie
Jul 8, 2021 6:10 AM CST
That's great to hear... they look great! Thumbs up
Name: Peggy
SW Oklahoma (Zone 7b)
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Magpie26
Jul 8, 2021 10:49 AM CST
Yay and whew!

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