what type of grit should i use to help drainage in pots

I use horticultural grit in the compost or vermiculite depending on what i have to hand. for those that dont like wet 'bttoms' I often use a 1/2" layer of washed sand to sit the bulbs on.
as crocks in the bottom of pots i use broken terracotta pots or pebbles from the beach.

welcome to GOY too. :)

We don't use crocks in the bottom of the pots at all. The compost will have about one-third part 6mm grit in the mixture to aid drainage. (6mm because that is what is locally available, 4mm might be better)

thankyou for advice I will use vermiculite and sand as recommended.

george biddle

I was thinking of large patio type pots BA not the smaller ones. The ratios are interesting BA I just go by the feel of it. :o)

George, if you use sand make sure it is the coarse one and not fine builders sand.