Author Topic: Bald Cypress  (Read 6619 times)

Dennis_S

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Bald Cypress
« on: July 21, 2011, 08:21 AM »
Any idea why bald cypress leaves will turn brown during the growing season?  Trees seem to be otherwise healthy.  New green shoots everywhere.  Even on the branches that turn brown.
 

Larry Gockley

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Re: Bald Cypress
« Reply #1 on: July 21, 2011, 10:09 AM »
Bald cypress leaves are very fragile. Without knowing all the facts of your trees, I'm thinking they are getting too much hot sun for the reduced  root mass they have. The old leaves will not come back, but try to keep them a bit shaded, and move to more sun this fall. Larry
 

bwaynef

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Re: Bald Cypress
« Reply #2 on: July 21, 2011, 10:13 AM »
Are the leaves dry brown?
 

Don Blackmond

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Re: Bald Cypress
« Reply #3 on: July 21, 2011, 10:19 AM »
usually, by July, intense heat and wind will cause browning of foliage.  just defoliate and get a new set of leaves.
if you keep it in dappled sun, or full sun for only a few hours of the day, you will most likely avoid browning leaves.  however, in hot, dry areas you will likely still get some browning.
contrary to what someone else said, bc are not fragile.  they are amazingly tough and adapt to climate conditions, hence shedding old leaves
 

Chrisl

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Re: Bald Cypress
« Reply #4 on: July 21, 2011, 11:06 AM »
Good info!!  I'm glad you brought this up Dennis!  I've been keeping mine in full sun all day, maybe that's why one leaf turned brown on me.  I'll move it to shade today.  I agree Don, BC's are hardy, but their branches are SO fragile.  How long in years do you wait to wire a branch?  Especially now that I've been pinching the leaves back for ramification?
 

Dennis_S

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Re: Bald Cypress
« Reply #5 on: July 21, 2011, 01:48 PM »
Most of my bc's are under 60% shade cloth.  Some are in full sun.  Soil is kept moist to wet.  The browned leaves are not dried out.  This has been going on since the early part of the season (about May). 
 

Dennis_S

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Re: Bald Cypress
« Reply #6 on: July 21, 2011, 01:49 PM »
another
 

Zach Smith

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Re: Bald Cypress
« Reply #7 on: July 21, 2011, 03:08 PM »
Just looks like normal summer heat stress.  We've been under serious drought conditions for years now, at least down here in the Deep South.  By May or June, it generally doesn't rain for weeks on end, which requires frequent watering.  Either the fact that we're getting a bit dry in between, or maybe the fact that we're using tap water, shows up in the leaves.  The good news is, it doesn't seem to deter the trees from putting out so many new buds you can get annoyed.  Better than no buds at all, of course.

Zach
 

Dennis_S

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Re: Bald Cypress
« Reply #8 on: July 21, 2011, 03:42 PM »
tap water is an issue with bc?
 

Don Blackmond

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Re: Bald Cypress
« Reply #9 on: July 21, 2011, 03:46 PM »
possibly root aphids.
 

Larry Gockley

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Re: Bald Cypress
« Reply #10 on: July 21, 2011, 05:14 PM »
usually, by July, intense heat and wind will cause browning of foliage.  just defoliate and get a new set of leaves.
if you keep it in dappled sun, or full sun for only a few hours of the day, you will most likely avoid browning leaves.  however, in hot, dry areas you will likely still get some browning.
contrary to what someone else said, bc are not fragile.  they are amazingly tough and adapt to climate conditions, hence shedding old leaves
[/quote
Not wanting to be misunderstood, I did say the leaves were fragile, not the trees themselves. Larry
 

Dennis_S

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Re: Bald Cypress
« Reply #11 on: July 23, 2011, 05:16 PM »
possibly root aphids.

Sevin the answer? 
 

Don Blackmond

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Re: Bald Cypress
« Reply #12 on: August 04, 2011, 10:23 PM »
 

Owen Reich

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Re: Bald Cypress
« Reply #13 on: August 05, 2011, 07:21 AM »
Tapwater was never an issue for me in Nashville.  I also used well water (slightly basic) with no I'll effects.  I consider bald cypress to be one of the best native species in America for bonsai; especially I you aren't living in an area with ultra-low humidity.  I find beaver gnawed stumps from the swamp ideal candidates as all the ones I've collected had killer taper and natural fluted bases.  I found one to three foot deep water best as large top-chops were not necessary.  The beavers also made many of their "cuts" at flush angles and created interesting shari  ;D.  When I get back to the states I'll post some photos of their progression.  I've successfully defoliated the three ones I kept every July and it increased ramification every time over three years. 

I've been kicking around the idea of hydroponic culture and even aeroponic culture but have yet to pursue it.  I would love for others to try it too to see what happens.  One day I'll do a study with it.  Has anyone tried it yet?  One post on here referred to a koi pond test that was successful, but I'm thinking isolation for superfeeding.
 

Larry Gockley

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Re: Bald Cypress
« Reply #14 on: August 05, 2011, 10:04 AM »
Hi Owen. I am also interested in hydroponic culture, especially for BC. Last winter, I acquired 40 BC seedlings, 1/4 to 3/4 trunk size. I wasn't sure how to procede as here in Texas we are in the hottest summer in 30 years, and the second worst
drought in history. We have had about four weeks and counting of 100 degree temps. I put some of the seedlings in a shaded garden area with a mix if about 1/3 perlite, to conserve moisture. Others I put in a bucket of water with an aquarium air pump areator in the bottom to supply oxygen. I add a weak fert. solution, and change it every few weeks. The ones in water buckets look fine. Some in the ground got brown leaves, (with new buds showing), but it seems I may have lost a few in the ground. It's hard to water enough at 100 + every day. I got the water bucket idea after seeing BC seedlings in the wild growing in nothing but water.  BTW, the trees in the water buckets increased their root mass by 3 or 4 times. Larry
« Last Edit: August 05, 2011, 10:07 AM by Larry Gockley »