Trachycarpus Roots growth rate question

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greendragon
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Trachycarpus Roots growth rate question

Post by greendragon » Wed Jun 27, 2012 8:36 am

I'm just wondering if anyone has an estimate on how far trachycarpus roots can travel on average in one year?

for example if you planted a 30litre potted trachycarpus in april this year, how far out would the roots have spread by the following april? Soil type would be loam.
Last edited by greendragon on Wed Jun 27, 2012 2:19 pm, edited 1 time in total.
2012 Highest Temp - May 24th: 27*C / 25th July: 28*c
2012 Lowest Temp - Febuary 3rd: -6*C
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Conifers
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Re: Trachycarpus Roots growth rate question

Post by Conifers » Wed Jun 27, 2012 8:56 am

I'll hazard a guess at about a metre.


greendragon
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Re: Trachycarpus Roots growth rate question

Post by greendragon » Wed Jun 27, 2012 2:21 pm

Thanks for the reply, Conifers whats your estimate on how far out from the trunk the roots of a 150 year old Trachycarpus would have spread? I know root growth slows down as the plant becomes fully established and mature but it would be interesting to know how far Down and how far sideways trachyroots travel from the trunk in it's lifetime.
2012 Highest Temp - May 24th: 27*C / 25th July: 28*c
2012 Lowest Temp - Febuary 3rd: -6*C
2013 Highest Temp - 13th July: 30*c
2013 Lowest Temp - 13th March -4.5*c.


Conifers
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Re: Trachycarpus Roots growth rate question

Post by Conifers » Wed Jun 27, 2012 2:58 pm

Don't know for palms specifically, but for trees in general, around 1.5–2 times as far as the tree is tall. So if palms were the same, a ten metre Trachycarpus would have roots extending 15–20 metres sideways in all directions. Depth depends a lot on soil water tables, in waterlogged soil, roots may only go down 20 cm, but on well-drained sandy soil, down 2 or even 3 metres.


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paulrm71
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Re: Trachycarpus Roots growth rate question

Post by paulrm71 » Wed Jun 27, 2012 3:35 pm

Hi there, when I moved my small 1foot trunker after one year, the roots had spread nearly a metre out.


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karl66
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Re: Trachycarpus Roots growth rate question

Post by karl66 » Wed Jun 27, 2012 5:06 pm

On the research i have done on trachys i believe that even old established trachys dont have massive rootballs & 1 metre down by 2 metres across would be maximum growth, hence being able to plant near buildings.


Conifers
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Re: Trachycarpus Roots growth rate question

Post by Conifers » Wed Jun 27, 2012 5:12 pm

karl66 wrote:On the research i have done on trachys i believe that even old established trachys dont have massive rootballs & 1 metre down by 2 metres across would be maximum growth, hence being able to plant near buildings.
There's a big difference between the entire root system (what I was describing), and what it can (a) survive being transplanted with, and (b) what effect the roots might have on structures. The latter two are both considerably smaller.


Trudytropics
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Re: Trachycarpus Roots growth rate question

Post by Trudytropics » Wed Jun 27, 2012 10:31 pm

paulrm71 wrote:Hi there, when I moved my small 1foot trunker after one year, the roots had spread nearly a metre out.
I think that explains the problem in the other thread, I would doubt very much you transplanted that palm without considerable damage to the roots then. It is having a massive sulk, hopefully in time it will forgive you.
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simon
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Re: Trachycarpus Roots growth rate question

Post by simon » Fri Jul 06, 2012 1:21 pm

As a palm crown doesn't get any bigger once it has formed a proper trunk, I wouldn't be surprised if the root spread doens't increase much after that either. As long as thier is enough root stock to support the transpiration loss from the crown, the only other issue is anchorage.

Trees are different, thier crown size increases throughout life and therefore so does the roots.


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