peyote is endangered and illegal to possess and eating it only increases
collection pressure upon the threatened wild population (since it is slow-
growing it is not practical to cultivate it for consumption, except
by grafting... an advanced topic.)  san pedro is legal to *possess*
(though not to eat) and seasonally available by mail-order (details
in addresses FAQ).

speaking as a gardener i wish to stress again the tremendous value
of san pedro as an ornamental.  it is columnar and very nearly spineless,
and in the summer produces fragrant 9" dia blossoms at sunset.  it
adapts well to pot culture, and does well both as a house plant
and on the patio.  i vividly remember seeing a 12' tall by 9' wide
clump of san pedro in bloom at a nursery; simply stunning
(desert theater in watsonville.  check it out this summer if you
are passing through town).

i would encourage everyone with a stable living situation to do what
i did: order some cuttings from NMCR, root them out, and plant them.
my intention is to rotate pots of blooming cacti from the patio into
the bedroom in order to enjoy the night blooms.  they are fast-growing
and it is no great trick to get your specimens to increase by 50-100%
in mass each year (with reasonable care), and cuttings root easily.
they are frost, drought and rain tolerant and can make anyone feel
as if they are a green-thumb.

my potted ones didn't produce blooms last year although they doubled
in mass and put up a half-dozen new branches.  i'm not sure if there
is any trick to getting them to bloom in pots.  i almost certainly
overfertilized with N, which supresses blooming in many flowering plants.
as house-plants they may need to be left outside in the cold over the
winter to stimulate bud formation.  many flowering cactii need a
winter session at or below 55 F for this reason.  i'm going to
change my fertilizer to a 0-10-10, or something similar, and add some
traces of boron and calcium and see if that does the trick this year.

(btw, any other gardeners out there who have potted & blooming
san pedro?  i'd like to compare culture with you.)