I'll add to the mix here too,
I've read to put *NON~USED* baby diapers
to line the bottom of the pots...
*It has those polymere crystals that will
hold alllllllllllllot of water...
But I would suggest you fill the diaper up with
water first, then put your dirt and appropriate
flowers... Those things expand once water is put in.
But there is an easier way, like Njoynit posted,
there is bags of soil that already have that stuff in it..
Also you can buy a jar of it, and tsp it in to your own mix of dirt..
Added note to that, I've read where you should only put those crystals into the BOTTOM of the pot, ***Like mix up "X" amount of dirt with the polymere cyrstals in it, then line any or all of the pots with a bottom layer of that dirt...
the put in regular dirt and
plant accordingly...
~~~You don't want the roots going to the top
zone of the dirt to get water, once at the top they dry out, you want the roots to go down..
Weezie