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[Help] Gardeners Question Time.



Weststander

Well-known member
NSC Patron
Aug 25, 2011
72,986
Withdean area
I've just spent hours cutting Chamaerops leaves. They are vicious! Unfortunately my three clumps have a virus and the leaves end up looking crap.

I would also like to add Dasylirion to the list. Before mine perished, I was forever cutting myself on its leaves.

I bought this at the Eden Project a few years ago and cannot for the life of me remember if it's a Puya. Anyone got any ideas?

View attachment 203086

Looks Triffid.
 




Coldeanseagull

Opinionated
Mar 13, 2013
8,804
Coldean
How did you deal with an inch of topsoil over subsoil/flints/solid chalk?

The modern advice is very much ‘no dig’, partly because it doesn’t release carbon, also it doesn’t help germinate countless weed seeds.

I ignore that because it’s literally an inch of poor soil, I did deep, take chalk/flints to the tip and enrich the new hole or trench for planting.
I did this in my yoof, now I raise the beds to accommodate my advancing years and hatred of digging
I've just spent hours cutting Chamaerops leaves. They are vicious! Unfortunately my three clumps have a virus and the leaves end up looking crap.

I would also like to add Dasylirion to the list. Before mine perished, I was forever cutting myself on its leaves.

I bought this at the Eden Project a few years ago and cannot for the life of me remember if it's a Puya. Anyone got any ideas?

View attachment 203086
It does look like a sheep killer....won't hazard a guess on which one as they all look like alpestris when smallish :shrug:
 


Jack Straw

I look nothing like him!
Jul 7, 2003
7,368
Brighton. NOT KEMPTOWN!
I've just spent hours cutting Chamaerops leaves. They are vicious! Unfortunately my three clumps have a virus and the leaves end up looking crap.

I would also like to add Dasylirion to the list. Before mine perished, I was forever cutting myself on its leaves.

I bought this at the Eden Project a few years ago and cannot for the life of me remember if it's a Puya. Anyone got any ideas?

View attachment 203086
Consulted a couple of my very good, plant ID friends, and we all believe it's a Puja of some sort.
 








chickens

Have you considered masterly inactivity?
NSC Patron
Oct 12, 2022
3,221
Looking for advice on managing horsetail, which has crept into my garden via the next door property that has been empty for about 18 months.

There is someone purchasing it now, but the bloody stuff has taken over their garden and now clearly has designs on mine. I’ve read that if you deprive the plant of light for a year or two you can kill the entire root system as well as the surface growth, but I don’t have the desire or patience to cover my entire garden in black tarp for two years.
 


Weststander

Well-known member
NSC Patron
Aug 25, 2011
72,986
Withdean area
Looking for advice on managing horsetail, which has crept into my garden via the next door property that has been empty for about 18 months.

There is someone purchasing it now, but the bloody stuff has taken over their garden and now clearly has designs on mine. I’ve read that if you deprive the plant of light for a year or two you can kill the entire root system as well as the surface growth, but I don’t have the desire or patience to cover my entire garden in black tarp for two years.

@Jack Straw and @jevs will have the best answer. In the meantime.
https://www.gardenersworld.com/how-to/solve-problems/field-horsetail/
 


fly high

Well-known member
Aug 25, 2011
2,412
in a house
Looking for advice on managing horsetail, which has crept into my garden via the next door property that has been empty for about 18 months.

There is someone purchasing it now, but the bloody stuff has taken over their garden and now clearly has designs on mine. I’ve read that if you deprive the plant of light for a year or two you can kill the entire root system as well as the surface growth, but I don’t have the desire or patience to cover my entire garden in black tarp for two years.
I feel for you. RHS seems to think you shouldn't worry about it, biodiversity and all that. But has a few tips. A bit contradictory as on one hand it says dig up rhizomes and on the other says do not disurbe?

 




tedebear

Legal Alien
NSC Patron
Jul 7, 2003
17,336
In my computer
Horestail is difficult to get rid of, you need to dig it out, and do this successively until its gone as you'll miss bits here are there. You can't use poison unless you intended to lose everything around it and not plant there for a few seasons...It likes it damp, so drainage and drying it out helps too...
 


tedebear

Legal Alien
NSC Patron
Jul 7, 2003
17,336
In my computer
Very warm dry spring enjoyed by all in my garden...all fruit and veg coming on strong too, both here and in the allotment...

20250531_114634102.JPG
 








Jack Straw

I look nothing like him!
Jul 7, 2003
7,368
Brighton. NOT KEMPTOWN!


Jack Straw

I look nothing like him!
Jul 7, 2003
7,368
Brighton. NOT KEMPTOWN!
Looking for advice on managing horsetail, which has crept into my garden via the next door property that has been empty for about 18 months.

There is someone purchasing it now, but the bloody stuff has taken over their garden and now clearly has designs on mine. I’ve read that if you deprive the plant of light for a year or two you can kill the entire root system as well as the surface growth, but I don’t have the desire or patience to cover my entire garden in black tarp for two years.
The RHS link posted by Fly High covers it all. However, if you're a fan of herbicides...
 




chickens

Have you considered masterly inactivity?
NSC Patron
Oct 12, 2022
3,221
The RHS link posted by Fly High covers it all. However, if you're a fan of herbicides...

I’ve now done more reading on the subject, and covering in tarp appears to be a non-option anyway. Apparently the plant springs back into life when the tarp is removed.

The chemical brigade are recommending Vitax SBK, which I’ve no experience of, but the alternative appears to be digging down up to 2 metres and trying to remove every last scrap of root.
 


Jack Straw

I look nothing like him!
Jul 7, 2003
7,368
Brighton. NOT KEMPTOWN!
I’ve now done more reading on the subject, and covering in tarp appears to be a non-option anyway. Apparently the plant springs back into life when the tarp is removed.

The chemical brigade are recommending Vitax SBK, which I’ve no experience of, but the alternative appears to be digging down up to 2 metres and trying to remove every last scrap of root.
 


Jack Straw

I look nothing like him!
Jul 7, 2003
7,368
Brighton. NOT KEMPTOWN!
It seems SBK contains Triclopyr. I used to use that in a product called Garlon, on Convulvulous. Very highly effective, and it doesn't come back. It doesn't kill grass either, so it could be the way forwards for you?
The labelling on SBK states it's for Marestail, so should be fine.
If this is the way you choose, ensure that you follow the dilution rate on the label, exactly. You won't gain anything by adding more concentrate than recommended, in fact some chemicals aren't as effective if it's too strong.
 


chickens

Have you considered masterly inactivity?
NSC Patron
Oct 12, 2022
3,221
It seems SBK contains Triclopyr. I used to use that in a product called Garlon, on Convulvulous. Very highly effective, and it doesn't come back. It doesn't kill grass either, so it could be the way forwards for you?
The labelling on SBK states it's for Marestail, so should be fine.
If this is the way you choose, ensure that you follow the dilution rate on the label, exactly. You won't gain anything by adding more concentrate than recommended, in fact some chemicals aren't as effective if it's too strong.

Really appreciated. I prefer to avoid weed killer wherever possible, but what I’m reading about this stuff suggests that it might be justified in this case, I’m amazed at how far and quickly it’s spread.
 




Jack Straw

I look nothing like him!
Jul 7, 2003
7,368
Brighton. NOT KEMPTOWN!
Really appreciated. I prefer to avoid weed killer wherever possible, but what I’m reading about this stuff suggests that it might be justified in this case, I’m amazed at how far and quickly it’s spread.
Most of us are in the same boat re pesticides, but there are occasions when there's no other sensible alternative.
 


A mex eyecan

Well-known member
Nov 3, 2011
4,214
Really appreciated. I prefer to avoid weed killer wherever possible, but what I’m reading about this stuff suggests that it might be justified in this case, I’m amazed at how far and quickly it’s spread.
Surely though no matter what you do your side of the fence unless your new neighbours are equally thorough won’t it just come back after a while?
 


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