Yellowing Bald Cypress

[Wings008]

Hello, recently bought 3 bald Cypress saplings and put them in the top floor to get maximum sunlight, however they are getting increasingly yellow, it started at the bottom but now most of the leaves are yellow and look dried out, I live in a simi arid Mediterranean country and the weather here is hot and very sunny, I use peat soil I water them once a day and m

Thanks

 

[Wings008]

here is a picture of the plant

 

[Shibui]

I'd say those have dried out.
Down here we know bald cypress as swamp cypress because that's what they love!
Try putting the pots in a tray of water to 1/3 - 1/4 depth of the pots so they have constant water all day and see if they do better. Almost impossible to over water bald cypress.

Adding a location to your personal profile allows us to see where you live each time you post without remembering to write it every time. It will help others remember you're in a hot, dry area when offering advice.

 

[sorce]

@Mellow Mullet informed me of a pest that does this, I think it was mites, but particular to BC if I recall and microscopic.

Welcome to Crazy!

Sorce

 

[Wings008]

I'd say those have dried out.
Down here we know bald cypress as swamp cypress because that's what they love!
Try putting the pots in a tray of water to 1/3 - 1/4 depth of the pots so they have constant water all day and see if they do better. Almost impossible to over water bald cypress.

Adding a location to your personal profile allows us to see where you live each time you post without remembering to write it every time. It will help others remember you're in a hot, dry area when offering advice.

ill try that, I was worried before that I might have over watered them, do you think it’s okay to stay in full sun like that? I know they love the sun in the US but our sun is significantly more intense

 

[Maiden69]

ill try that, I was worried before that I might have over watered them, do you think it’s okay to stay in full sun like that? I know they love the sun in the US but our sun is significantly more intense

Contrary to what you may have heard... you can't overwater a BC. https://www.bonsainut.com/threads/bald-cypress-group-progression.51534/

 

[Adair M]

I have a bald cypress in a bonsai pot, sitting almost completely immersed up to the rim in the bog area of my koi pond. It’s as if it’s in a swamp. Full sun. It grows like a weed!

 

[rockm]

ill try that, I was worried before that I might have over watered them, do you think it’s okay to stay in full sun like that? I know they love the sun in the US but our sun is significantly more intense

I agree with your instinct to give some protection from sun --sheltered from the strongest afternoon sun is a good thing. Although we grow bald cypress in the U.S. in full sun, sunlight in your country, along with low relative humidity is a different story. Libya is a desert, akin to Phoenix Ariz.. I know folks growing Bald cypress in Arizona don't give trees full sun...

 

[Maiden69]

IDK... but the weather seems similar to San Antonio right now... we are a bit hotter at the moment, humidity is about the same as well. All my BC are in full sun, with the pot/bag 1/2 way or more inside water.

 

[rockm]

IDK... but the weather seems similar to San Antonio right now... we are a bit hotter at the moment, humidity is about the same as well. All my BC are in full sun, with the pot/bag 1/2 way or more inside water.

View attachment 445651
View attachment 445652

Day to day comparisons are nothing but anecdotal. Yeah, you're hotter today, but historically and on average Libya has some of the hottest places on the planet.


from the look of the OP's seedlings, full sun ain't gettin' it for him. That die back is sun and moisture related.

 

[Maiden69]

Day to day comparisons are nothing but anecdotal. Yeah, you're hotter today, but historically and on average Libya has some of the hottest places on the planet.


from the look of the OP's seedlings, full sun ain't gettin' it for him. That die back is sun and moisture related.

Not hotter than Jalalabad, Afghanistan ... anyway, Tripoli is right on the coast of the Mediterranean, the weather there is comparable to Houston's weather year round. Just because it is in Libya doesn't mean is in the middle of the desert. I spent a year in Jalalabad, summer there was a scorching 113 when I was there, compared to Kabul that rarely hit mid 90's, it's all about the location. That is why I stated it was similar to San Antonio,

Tripoli Climate, Weather By Month, Average Temperature (Libya) - Weather Spark

In Tripoli, the summers are hot, muggy, arid, and clear and the winters are cool, windy, and mostly clear. Over the course of the year, the temperature typically varies from 49°F to 92°F and is rarely below 44°F or above 101°F.

weatherspark.com

 

[rockm]

Not hotter than Jalalabad, Afghanistan ... anyway, Tripoli is right on the coast of the Mediterranean, the weather there is comparable to Houston's weather year round. Just because it is in Libya doesn't mean is in the middle of the desert. I spent a year in Jalalabad, summer there was a scorching 113 when I was there, compared to Kabul that rarely hit mid 90's, it's all about the location. That is why I stated it was similar to San Antonio,

Tripoli Climate, Weather By Month, Average Temperature (Libya) - Weather Spark

In Tripoli, the summers are hot, muggy, arid, and clear and the winters are cool, windy, and mostly clear. Over the course of the year, the temperature typically varies from 49°F to 92°F and is rarely below 44°F or above 101°F.

weatherspark.com

Still, the OPs seedlings are sun and heat stressed from the looks of them

 

[Adair M]

Still, the OPs seedlings are sun and heat stressed from the looks of them

I vote water. Not heat. It’s 93 here today, but my bald cypress in full sun in the koi pond doesn’t show any stress at all, in fact it’s getting out of hand, how much it’s growing!

 

[rockm]

I vote both. The photos of both the BC in the U.S. have essentially shaded pots--and constant access to water. You can't overwater BC. Lack of water in small pots and what looks like free draining soil means they're probably dry. Although that may be the primary stressor for the OP's trees, the trees have extremely smaller pots and significantly less foliage. The pots are exposed to direct sun. That exposure can cause soil temps to get into the zones that are a problem for roots...

 

[Maiden69]

This pic was taken right now, 101 degrees, no rain in the last 23 days with another week and a halve predicted with no rain and temps over 100.



@Wings008 find a container that can hold water that is at least 1/2 the height of the pots. That's how I started mine here in Texas.

 

[Shibui]

ill try that, I was worried before that I might have over watered them, do you think it’s okay to stay in full sun like that? I know they love the sun in the US but our sun is significantly more intense

You can see the different opinions there so you'll have to work that out for yourself.
There is always a point where any tree cannot take in enough water to cool itself. I don't know where that point is for BC so no point me guessing. Mine grow in part shade but that's more because that's the only spot left rather than need.
At least start with plenty of water and see how that goes or go for water + part shade until they recover and the gradually increase sun to see if there's a tipping point for your trees in your area.

 

[Wings008]

Still, the OPs seedlings are sun and heat stressed from the looks of them

I agree our weather in Tripoli is Mediterranean but some days the the wind blows from the south and the temps can reach 40 Celsius, for the water I’ve took the advice and put a plastic pot around my clay pots and filled it with around 1/3 of the height with water, and moved the whole plants to an area that only received direct sunlight in the morning until noon, then it’s indirect, I’ve noticed few small leaves sprouting that have normal green colour, I hope that’s a good sign, it was rather difficult to source these plants to here

 

[rockm]

I agree our weather in Tripoli is Mediterranean but some days the the wind blows from the south and the temps can reach 40 Celsius, for the water I’ve took the advice and put a plastic pot around my clay pots and filled it with around 1/3 of the height with water, and moved the whole plants to an area that only received direct sunlight in the morning until noon, then it’s indirect, I’ve noticed few small leaves sprouting that have normal green colour, I hope that’s a good sign, it was rather difficult to source these plants to here

FWIW, Bald cypress seedlings, like many seedlings, are understory trees for a very long time. They can grow in overshadowed locations for a while in their natural habitat. That means they can take shade in the beginnings of their lives. In your climate, a constant supply of water is a necessity, particularly with that hot probably arid wind.

 

[Adair M]

Just google “bald cypress swamp”, and click on “images”. There you will see how bald cypress trees grow in their native environment. They love standing water!

 

[Bonsai Turtle]

I would think they aren't getting enough hydration and would place the pots in a tray/container of water. Of about 50 BC that I have in my backyard, two of them did this earlier this season. Those two were underwatered my mistake because foliage from other plants kept them from getting enough. Once I corrected that they sent out a new flush of leaves.