Compost issues yet again … any suggestions?

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MartinNicklin
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Compost issues yet again … any suggestions?

Post by MartinNicklin »

I posted about this on GOTE last year. Again this year I am finding that any plants potted into commercially available composts just struggle.
One of my favourite plants, Ipomoea Heavenly Blue, was dreadful last year. However, not wanting to be beaten, I bought fresh seeds this year from T and M with a good date. Potted into Jack’s Magic with some drainage material mixed in, after a couple of months on a warm windowsill the growth is pathetic. The leaves look stunted and weak and some of the plants have just withered away. From lots of experience in the past, this plant should be romping away.

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I was at a local nursery today and asked about their compost as all of their plants looked pristine. They do not use peat free and, and I know many won’t like this, when I asked why they said plants just die in peat free. They told me that almost all of the stuff widely available is junk and plants are destined to struggle. They have to buy a Sinclair compost specially for the trade, unavailable generally. Even in the huge bulk they buy it in, it’s very expensive and they wouldn’t sell me a bag! I handled it and it was beautiful stuff with perlite etc already added. They said they can’t afford to use anything less reliable as business depends on it so they are willing to pay.
So, I can’t buy it but is anyone using anything this year which they feel has offered decent results? It’s such a shame that folk will fork out good money on plants which will at worst die or at best struggle because the compost they have been grown in is not available.
Chad
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Re: Compost issues yet again … any suggestions?

Post by Chad »

Buy a good peat based compost now in some bulk from a horticultural trades supplier. The 'feed' in it will age out, but the structure lasts.

You might, if you have room, also buy some peat to use as an additive in years to come.

BHGS isn't too far from you. The Cornish branch lets me buy just a few bags if I visit in person, but I'd check that out before travelling.

Chad
charlie
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Re: Compost issues yet again … any suggestions?

Post by charlie »

I have a feeling I may already of commented on GOTE, we are peat free and have been for 30 years, we have tried all sorts of different brands and they have all been rubbish on their own, we mix bagged soil and add osmocote and things then grow as well as they did before in peat based compost

Presently finding Levingtons "Sustain" nursery stock compost the most reliable and consistent we use 37.5lts of it to 25 lts of bagged soil (from Wicks!) and add about 4 tablespoons of Osmocote 18 month fertilizer
MartinNicklin
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Re: Compost issues yet again … any suggestions?

Post by MartinNicklin »

Thanks both. I've not seen the Levington's Sustain anywhere. It looks quite expensive from the few adverts on the net.

I think I've found the compost the local nursery uses:

https://www.grasslands.co.uk/products/s ... QUQAvD_BwE

The Wickes soil might be woth a go if you have found it a useful mixing component. Some of the named topsoils I have used in a similar way have turned the mix to an almost concrete like feel.

Chad I think I will look into getting some peat while you still can. It's just a pity it's all such trial and error ... and sometimes a costly error. When I was young we would go down to the local greengrocer's and buy loose compost by the pint. My neighbour grew prize winning tomatoes and chrysanths and everything we planted in it grew - that's when I first grew Heavenly Blue from seed and as a youngster on a tough council estate in Wolves it seemed so exotic. It started me off! I'm guessing that compost had lots of peat in it!
andym
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Re: Compost issues yet again … any suggestions?

Post by andym »

Martin, LBS horticulture supply a Sinclair peat/vermiculite mix. One bag 75lt cost £21.06 + delivery which seems expensive unless you buy in bulk. They are based in Colne Lancashire https://www.lbsbuyersguide.co.uk/catalo ... e-compost/
Callum
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Re: Compost issues yet again … any suggestions?

Post by Callum »

I use bulrush professional multi purpose compost and I’m happy with the results :mrgreen: it is peat based though, they do have a peat free one but I haven’t tried it so can’t comment
It’s about £14 a 60ltr bag online but I get it cheaper from a local supplier.
I’ve recently bought Irish peat moss from eBay to add to a fern border, it was £20 for 100ltrs
At the wholesale nursery I work at we’ve gone peat free and have been using Levington sustain for trees, it seems like fairly good stuff but time will tell on the results.
AndyC
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Re: Compost issues yet again … any suggestions?

Post by AndyC »

Chad wrote: ↑Tue Apr 23, 2024 2:56 pm
BHGS isn't too far from you. The Cornish branch lets me buy just a few bags if I visit in person, but I'd check that out before travelling.

Chad
Chad, is the compost you buy from BHGS Hayle the Sinclair 'Nursery Stock Growing Medium' ?
charlie
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Re: Compost issues yet again … any suggestions?

Post by charlie »

Levingtons "sustain" peat free was £8.75 per 75lt bag two weeks ago when I last bought it and thats delivered but it has gone up £1 per bag in the last few months, wicks top soil is £3.33 per 25 lt bag

Levington also do a range of reduced peat composts which I haven't tried
JohnH
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Re: Compost issues yet again … any suggestions?

Post by JohnH »

Here are a couple of peat reduced composts I have been very pleased with. Neither are particularly cheap, but why risk losing precious plants by cutting corners.
Jamieson Brothers are phasing out peat products in line with regulations but I haven't tried their peat free stuff.
https://www.jamiesonbrothers.com/jamies ... and-garden

Levington Advance is usually good, but I did have problems a couple of years ago. I think they have sorted out the formula now.
https://www.fargrohomeandgarden.co.uk/p ... mpost-75lt
Chad
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Re: Compost issues yet again … any suggestions?

Post by Chad »

AndyC wrote: ↑Wed Apr 24, 2024 6:32 am Chad, is the compost you buy from BHGS Hayle the Sinclair 'Nursery Stock Growing Medium' ?
It changes with what is available.

John tells me he is using Vitax Traditional Potting at the moment.

That is what I'll get next, along with some peat bales to ameliorate whatever they are allowed to sell once we have been pushed to be peat free.

I'm using a lot more perlite as peat is reduced, so my 'green footprint' is worse than before.

Chad
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