is your climate suited to growing them outside?
or will they stay under the HPS lamp?

From late spring to early autumn they'll do fine here outside. I also have a greenhouse to house them. In winter I have to bring them indoors. Some of my tichocereus peruvianus cacti survived the winter in the greenhouse though with temperatures below minus 3 C for some days straight. Day temperatures were mostly around freezing point (in the greenhouse). So I'll try to do this with some of the lophophora's next winter.
Actually it is still winter here... it doesn't seem to end this year.

t.peru is very hardy compared to LW
dont treat them the same or you'll be sorry

in my climate most peruvianus type plants are ok in the greenhouse- but you will see some frost killed tips pictures a few posts back in this thread. our temps never dipped below 15*f- and were rarely below 20*f for more than a few hours.
(3500' in north central California)

i wouldn't risk my lophs below freezing for more than a few hours

Thanks for the tips dg, much appreciated. I won't put them all in a greenhouse but I really want to try it with some because I read a lot of different opinions about this on the net and know there is a guy here in the Netherlands who keeps his peyotes in the greenhouse during the whole winter. Maybe it'll be disaster for those lophs but sometimes I have to find things out the hard way to convince myself.
Also my tricho's didn't get frozen tips so there have to be more factors than frost in the black-tip-in-freezing-conditions problem like humidity or something. Winters here have very low humidity when freezing.

BTW I really like your collection. That nice greenhouse and those grafts, very inspirational. I'm preparing something like that this spring as well as we just bought a rather large plot of land with a small house on it. I already passed over my allot (which housed the greenhouse) to friends. I'm thinking of building a double glass greenhouse on our plot with heat absorbing materials in it and some small petroleum heaters to keep the temps up so I can grow more tropical plants (flowers and entheogens). I saw some really nice geodesic dome designs on the net.

T.G.I. Friday's

I just received my african grown mature flowering stagepeyote grown from seed. They are all > 4cm and some even near 6. All seeds from previous flowering still in the buds

I also got some san pedro's which are among the fattest I ever saw for this height. The all have good root systems and are not grafted.

Hereby the friday afternoon Cacti porn:

Daaaaaaaaaaaaaaaaaaaaaaaaaang


So many peyotes.......I wish I had one!

I want one of those yotes.

Here are my little babies. Just started my cacti garden.

Nice babies. Are those bridgesii?

Yes, they are little bridgesii cacti. 13 of them. I am going to plant some torches and peyote's soon as well.

^is that a CFL?
if so move it much closer to the cacti
(nice start for your collection )

New Set up

@ dg: It just said "Plant light" My new set up for the bridgesii is a 135 watt T5 Florescent Bulb with reflectors in a greenhouse. I have it with a temperature gaige so I can keep track. I put that other light over my pereskiopsis and my penis plant.

check

Nice pups hostillis, and nice adults BecometheOther . That second photo is a big one, it almost defeated time there.

updates
had to thin the herd to fit into the new GH bed
while i hate to lose cacti, i'm very happy to get the babes into a year round climate where they can thrive.

i've had good luck in the past growing in raised beds- even if the plants are pretty close together (as they will be here) space is limited, even in the 35x70' climate controlled triple wall poly carbonate monster

life is not all peaches and cream, but there is alot to celebrate.

please note: no cacti were completely killed in the making of this post. they all live on.

a couple gratuitous shots for fun

see anything odd with the last picture?

Upside down?

Some pron for your eyes.

very nice Hostilis!

watch them lophs for mite/thrip damage (they are very easy targets)

D.Rey
i'm not sure why but I cant see your pictures??
just a small icon...

What would be the best course of action if one got thripes?

Here is some more pron for y'all.