- Ragbru
- Posts : 7756
Join date : 2013-12-06
Location : In a land full of pretentious buffoons.(I live alone)
Bulb growing compost?
Mon Oct 06 2014, 16:17
What is bulb growing compost? Alright, I know what it is used for. How does it differ from other composts? Anyone know?
- Temeluchus
- Posts : 6677
Join date : 2014-01-10
Re: Bulb growing compost?
Mon Oct 06 2014, 16:25
Is it not more free draining, so the bulb doesn't rot?
I don't know, don't tend to buy specialist compost with the exception of ericaceous (sp). That's for the camellias, azaleas, and blueberry bushes.
I don't know, don't tend to buy specialist compost with the exception of ericaceous (sp). That's for the camellias, azaleas, and blueberry bushes.
- Ragbru
- Posts : 7756
Join date : 2013-12-06
Location : In a land full of pretentious buffoons.(I live alone)
Re: Bulb growing compost?
Mon Oct 06 2014, 16:56
You could be right. I have always used a mix of three parts John Innes No2, to one part horticultural vermiculite, and one part Wicks sharp sand. A mix both free draining and water retentive.
Sharp sand is my substitute for horticultural grit. It is much cheaper. I have read that you cannot use it as it could be dredged from tidal waters, and hence high salt content.
However, I tested by washing it, and letting the drained-off water evaporate from its container, and did not find any trace of salt.
ps I use more or less the same mix for ericaceous, but add sawdust and spent coffee grounds to produce the acidity.
Sharp sand is my substitute for horticultural grit. It is much cheaper. I have read that you cannot use it as it could be dredged from tidal waters, and hence high salt content.
However, I tested by washing it, and letting the drained-off water evaporate from its container, and did not find any trace of salt.
ps I use more or less the same mix for ericaceous, but add sawdust and spent coffee grounds to produce the acidity.
- Temeluchus
- Posts : 6677
Join date : 2014-01-10
Re: Bulb growing compost?
Mon Oct 06 2014, 19:44
Interesting; thanks for that. I don't tend to use the coffee maker much now, and when I did the grounds were as slug repellant.
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