Allotment Gardening Advice Help Chat

Growing => Grow Your Own => Topic started by: stompy on May 06, 2011, 10:52

Title: Perlite
Post by: stompy on May 06, 2011, 10:52
Can perlite be used in an organic veg garden?

We have been told that we are going to have 20 bags each dropped of at our plots as it's a new site and the ground is very hard.
Just want to know if i want any or not.
Title: Re: Perlite
Post by: arugula on May 06, 2011, 10:57
It should be OK to add it:

http://en.wikipedia.org/wiki/Perlite

:)
Title: Re: Perlite
Post by: stompy on May 06, 2011, 11:03
Yeh, your probably right.

It just doesn't look organic ::)

We've been offered that or sharp sand, but all the old guys seem to be opting for Perlite?
Title: Re: Perlite
Post by: arugula on May 06, 2011, 11:17
I don't really know if its founded on much at all, but I've heard concerns being expresed in the past about sharp sand containing too much salt to be added to your soil. That might be a reason for their choice?
Title: Re: Perlite
Post by: stompy on May 06, 2011, 11:25
I would have thought that the salt would be washed out within a winter or two?

I can't decide.  :unsure:
Title: Re: Perlite
Post by: arugula on May 06, 2011, 11:28
Well we use sharp sand without any ill effect... and I suppose you could wash it. See what others say about it too. :)
Title: Re: Perlite
Post by: waddecar on May 06, 2011, 14:06
I would certainly take it it will improve soil structure much more effectively than sand, but it can be quite dusty to spread so have a face mask with you.

And save a bag or 2 to mix into your seed compost in the future
Title: Re: Perlite
Post by: Trillium on May 06, 2011, 15:37
I used perlite to top dress my newly planted seeds and I was happy to find that I didn't get any damping off. I'll be using perlite from now on to top seed beds as I don't like to use chemical damping off preparations. Perlite is as good as grit for heavy soil, and much lighter.
Title: Re: Perlite
Post by: Kristen on May 06, 2011, 19:40
I've not used it direct on the soil, only in potting compost.  I open the bag carefully not to disturb the dust, and then water the contents of the perlite bag thoroughly before using, otherwise the dust is a nightmare (and probably not good for lungs either)

I wonder if it will blow about, and be ineffective, when it moves up to be on the surface of the soil?