Some very fine plants there!
Peyton

Cp,
You are probably right about it being crassigibbus, my fingers were typing faster than my brain was thinking...
Peyton

My money is on Notocactus...
The spines, the areoles, the tubercles, and the newest growth on top all say "noto" to me...
An overfed N. uebelmannianus probably...
Peyton

Looks like a Denmoza from the thumbnail, but a larger pic would help - the imageshack link does not seem to work...
Peyton

Looks like a melocactus to me - I think the sunken areoles are typical for melos...
Peyton

Get some commercial greenhouse film from a greenhouse or nursery supply house, 6 mil is what you need if you want it to hold up to the weather. UV treated film is best so that is does not fall apart after one year from sun exposure. I bought a 4-year rated film which is now finishing up it's fifth w...

Looks like an Agave attenuata, one of the more cold sensitive agaves, wich will not tolerate temps much below freezing.
Very typical agave cold damage...
It is a cliff dweller native to the Mexican states of Jalisco, Nayarit, and Michoacan.
Peyton

A good cheap greenhouse heater here in the USA is a camp style propane heater, about $40 US new, usually with 3 heat settings low, medium and high (9000, 12000, and 15000 BTU). They do a great job heating a greenhouse and they never make soot. The main byproduct seems to be water vapor, so they do c...

Hi, Welcome to the forum. Your pretty plant is a Pachypodium, probably P. lamerei, which is the most frequently seen Pacypodium. there is another one named P. gaeyi that is similar, I am not sure of the difference. By the way, it is not a cactus. If it hasn't already it will have pretty white flowe...

Agave americana is not too picky about soil.
Here in southern Louisiana it grows in flat heavy clay soils with no problems - in our wet conditions it just seems to grow faster and larger.
As long as you do not have standing water on the ground for any length of time, it should do OK...
Peyton

Wow - nice find for Home Depot...
Looks like variegated monstrose cereus, not sure which species...
Peyton

Google can be a useful tool for detecting mis-spellings as it will often suggest the correct spelling, or you can try different spellings and observe the number of search results - the greatest number of results is usually the correct spelling. If "gibossom" is googled, the result is "...

Thanks for the info!
Peyton

... my job is to find a new home for plants that are protected and regulated by the CITES authorities. Basically, that means threatened and endangered plants that are seized at the U.S./Mexico border, because they arrive without a phytosanitary certificate and do not have CITES documentation from M...

I agree with Harry: Monadenium ellenbeckii.
Peyton