Fantastic James! I don't believe I've told you, but I managed to find seed of M. hofackerianus - will have to share some seedlings with you in spring!

Amazing growth on the grafted one!

Very nice James! It is as you said, Arrojadoa dinae flowering in full force right now!

Check out iNaturalist. There's probably quite a few observations of P. greggii on there you can use!

jp29 wrote:We are experiencing the very best growing conditions here in southern Arizona right now - sunny days in the 80s F and nights in the 50s F.

I caved and moved my Discocactus inside the greenhouse, however!

I don't think this is C. falcata though!

Czech seed suppliers often take their time, but the quality is typically great, and so are the prices.

I was very happy to get a Backebergia and several Jasminocereus this year! Still looking for many of the rare Brazilian columnars.

Have you tried it already? Yes, someone in town has two grafted clones which have been heavily propagated already. I degrafted mine and rooted them. New growth is now much less bloated. I hope to have seed next year. Are you talking about theresae or bertholdii? I've heard that bertholdii is not th...

I have not found them hard to grow, as long as they get a cool winter rest. I remember seeing a slide show on Patagonia once with Austrocactus and Pterocactus growing near the shore and large icebergs floating past in the sea in the background, so they do get pretty far south towards cooler climate...

Very nice post - thank you. Are any of the species considered to be more difficult to grow than others?

Armatocereus germinate well, but may take a few days or weeks, and grow fast initially from seed. Fairly tolerant in terms of watering and low temperatures when dry.

No more difficult than M. theresae in my opinion! Much more beautiful grown hard on own root. Have you tried it already? Yes, someone in town has two grafted clones which have been heavily propagated already. I degrafted mine and rooted them. New growth is now much less bloated. I hope to have seed...

No more difficult than M. theresae in my opinion! Much more beautiful grown hard on own root.

Very beautiful James. Looking forward to seeing flowers one day myself!