Cactus garden!

I bought a( perhaps a bit tacky) diy 'cactus garden in a box' while on holiday last August in Colorado. The problem was I bought it with a week still to go so it had to stay in the box in the overhead shelf on the coach all day and opened up and placed in a window every time we got to a hotel. It arrived home in tact and I potted it up immediately but mid September was not the ideal time so I watered it lightly once.
Two weeks ago I dribbled a few drops of water around each cactus and again last week.
A few days later one had flower buds emerging, the one on the right. I didn't expect flowers for at least a couple of years.

 

Looks like a rebutia on the right, they flower after only a couple of years from seed.
Wouldn't like to guess about top left, but bottom looks very similar to a Ferocactus emoryi, mine took nearly 30 yrs to flower, from seed.

 

Thanks Pete, the pic is a few days old and the first flower is out, a nice pink, I'll take another tomorrow.
If mine takes that long to flower then I won't be around to see it.

 

F. emoryi

Well I was going to say that but thought it best to be tactful

 

Your Rebutia looks like R.fiebrigii (S.American and fairly frost hardy ) and the top left looks akin to Pilosocereus polygonus (Caribbean areas and Central America , not hardy at all) .

 

My grandmother carefully rooted weeping white willow saplings and planted them in the hollow behind her strawberries. She was very happy with the result, they should look fine in 50 years or so. She was in he late eighties at the time

Brilliant souvenir @strongylodon, much better than fridge magnets. Are they native to Grand Canyon? Quite amazing that you are already getting flowers, please do post pictures!

 

@Selleri, not native to Colorado or the Grand Canyon, I only saw dwarf Opuntias.
We brought fridge magnets back too!!!
First flower.

 

To me that is a fairly unusual colour for a rebutia.

 

Are they usually red?

 

Mine are all various shades of red, yellow or white,

 

On-line Guide to the positive identification of Members of the Cactus Family

Some interesting stuff on here ; click on some of the habitat shots !