Bulb food

Ina Crossley klazina1@gmail.com
Sat, 24 Oct 2015 15:29:30 PDT
Thank you Rodger.  That is most interesting.  Where I live the soil is 
volcanic and plants love it.  I didn't connect the fact of that with the 
pumice I now use in containers.  I have done no horticultural training, 
just a gardener from a young age.  And get a feel of what agrees with 
them and what doesn't.   Great to know your info on this.

Ina Crossley

On 22/10/2015 8:42 a.m., Rodger Whitlock wrote:
> On 21 Oct 2015, at 16:01, Hans Huizing wrote:
>> I also use Pumice.
>> For the more difficult Cyrtanthus species I use pure Pumice 2-5 mm.
>> The root system develops very well in this material.
> A demonstration that plant roots need air too. And I don't mean just epiphytes.
>> Since this material contains no nutrients...
> Pumice (volcanic pumice) is nutrient-rich like other volcanic ejecta. Think
> about the slopes of Mt. Vesuvius, which have been farmed for millenia because
> the soil (decomposed ejecta) is so rich. Particularly rich in potassium, I
> understand. The best part is that the nutrients in pumice are released slowly.

More information about the pbs mailing list