horticultural garden grit 2-6 mm
josinebakker2003 Posts: 17
In the UK it is easy to get and is used for potting bulbs and to improve clay soil. In Holland it is found nowhere as such. What would be a good substitute (for the flower garden): hen grit? vermiculite or perlite (both not biological destroyable)?
Grit is fine as another addition, but as @Loxley says, that's a very expensive route. Perlite and vermiculite are the same in that sense. They're really for pot culture as in growing on cuttings to ensure good drainage, or for covering seed.
I live in west central Scotland - not where that photo is...