Cycas Revoluta Leaves turning white

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Andy P
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Cycas Revoluta Leaves turning white

Post by Andy P » Sun Apr 22, 2012 7:40 pm

Have only had this Cycad for a month or so and i`ve already run into problems with it. It`s my first cycad so i`m very inexperienced at growing these things. It was imported from Spain and when it arrived it was a lovely deep green colour but now the leaves are starting to yellow a bit and some of the leaflets have turned white and died. I had to re-pot it when it arrived as it was so crammed into it`s pot that the pot had actually split. I`ve potted it into a peat based compost with some perlite added.It`s been outside since i got it so it`s possible that it`s experienced a light frost. Is this frost damage??? Or something more sinister. It does seem to be getting worse by the day.
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“I do not fear death. I had been dead for billions and billions of years before I was born, and had not suffered the slightest inconvenience from it.” Mark Twain.


dino
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Re: Cycas Revoluta Leaves turning white

Post by dino » Sun Apr 22, 2012 8:31 pm

Doesn't look too bad to me for this time of year.


jungle jas
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Re: Cycas Revoluta Leaves turning white

Post by jungle jas » Sun Apr 22, 2012 9:27 pm

Spain to the UK may be a bit of a shock. icon_thumright
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GoggleboxUK
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Re: Cycas Revoluta Leaves turning white

Post by GoggleboxUK » Sun Apr 22, 2012 9:29 pm

All mine look a fair bit worse than that but I'm hoping they'll all flush this year.
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Clive60
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Re: Cycas Revoluta Leaves turning white

Post by Clive60 » Mon Apr 23, 2012 8:04 am

I lost mine by February, -9c saw it off.
A bit off topic but a large majority of these and other palms orchids and exotics now come from southern China, some nurseries producing more than 5,000,000 plants per year dirt cheap, no heat required and very cheap labour.


shanks
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Re: Cycas Revoluta Leaves turning white

Post by shanks » Tue Apr 24, 2012 9:34 pm

i've ordered one from spain too, may bring it in at night to acclimatise to our lovely english weather


GaryW
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Re: Cycas Revoluta Leaves turning white

Post by GaryW » Wed Apr 25, 2012 6:49 am

That looks more like sun scorch to me rather than frost damage ! I know you've only just repotted it and cycads hate being repotted due to their fragile roots, but I would have used a slightly bigger clay pot with 75% JI no 3 and 25% gravel. The good news is that it looks like it may flush fairly soon looking at the centre of the plant icon_salut


gdudey

Re: Cycas Revoluta Leaves turning white

Post by gdudey » Wed Apr 25, 2012 6:59 am

Its not green paint coming off is it?

I've know of people spray painting dead xmas trees and trying to sell them on.


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Mick C
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Re: Cycas Revoluta Leaves turning white

Post by Mick C » Wed Apr 25, 2012 3:57 pm

Andy I've had a similar sized one for nearly three years I think. It was half price in a garden centre so they must have had it a good while, kept inside.

It started to do the same as yours within a few weeks which I put down to sunburn at the time. Gradually all the fronds turned completely white and I cut them off about a year ago when the last bit of green disappeared.

It's been frondless since then but the caudex is really solid so I'm hoping for a flush this year.


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Andy P
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Re: Cycas Revoluta Leaves turning white

Post by Andy P » Wed Apr 25, 2012 7:57 pm

Thanks for the replies guys. I still don`t understand why the leaflets are turning white and dying though. It certainly isn`t `Sunburn` Except for the odd day here and there we`ve been pretty well blanketed in cloud for the past month and i`ve seen these things growing in Southern Turkey and Florida (in 37degree heat and scorching sun) quite happily. I can understand the leaves yellowing a bit, as i would imagine after being re-potted the plant will draw some energy down to the root base,but i wouldn`t have thought this would cause leaflets to turn white like they have.
“I do not fear death. I had been dead for billions and billions of years before I was born, and had not suffered the slightest inconvenience from it.” Mark Twain.


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karl66
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Re: Cycas Revoluta Leaves turning white

Post by karl66 » Wed Apr 25, 2012 8:32 pm

Andy, i have a fair size one which had a deep green lush look, last year in a matter of wks it went white & yellow, i'm still seething over it as i cant put my finger on what went wrong :x , i've come to the conclusion there very finicky, mines got about 18inches of fat trunk but is frondless!,as soon as it re-grows i'm getting rid of it.


GaryW
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Re: Cycas Revoluta Leaves turning white

Post by GaryW » Thu Apr 26, 2012 6:28 am

I'm still sticking to my sun scorch theory :wink: If the roots were damaged or the plant was unhappy the whole leaf would turn yellow then brown over a period of weeks. An external factor has killed the isolated leaflets and pretty rapidly for them to be white. Remember these plants are often grown in shaded greenhouse conditions in nurseries and spend time in complete darkness while in transit. If they are not used to full sun, damage like that can happen in an hour or two. At best your lush dark green leaves will turn paler if they're used to more shade. Once acclimatised they will take full sun of course, but they will need a few weeks to adapt. icon_salut


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GoggleboxUK
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Re: Cycas Revoluta Leaves turning white

Post by GoggleboxUK » Thu Apr 26, 2012 9:58 am

It's definitely not sun scorch.

I had my largest in a shady corner of my plant room over winter and it came out with white bits.

I think it's more likely to be underwatering.
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Simba
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Re: Cycas Revoluta Leaves turning white

Post by Simba » Thu Apr 26, 2012 10:20 am

I wouldn't think its underwatering either...

My Cycas Panzhi has bits like that, and it's been outside in the Essex monsoon. But my newish Revoluta has been outside too, and that is completely unblemished...


dino
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Re: Cycas Revoluta Leaves turning white

Post by dino » Thu Apr 26, 2012 8:41 pm

It's not underwatering. One of mine has been inside all winter and has hardly seen water. It looks as lush as the day I brought it in.


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