Gymnocalyciums in flower

[juster]

One more from today, a very old plant of G. quehlianum

[iann]

Some beautiful flowers and plants (and buds!) there. Is the problem with yours sun stress, Ralph? I read once that Gymnos need lots of bright sunshine for the buds to open and flowers to come out, yet the plants seem to get stressed in bright sunshine - something of a conundrum?...

Heat to open the flowers, but 17 hours of direct June sun under glass will start to fry many species. Perhaps strangely, some seem to cope with the sun better when it is really hot.

[el48tel]

My Gymnocalycium have mainly inhabited the top shelf until this year when the disposal of a collection of Lithops has allowed ALL Gymnocalycium to have top shelf ...... and they've loved it.

[ralphrmartin]

Heat to open the flowers, but 17 hours of direct June sun under glass will start to fry many species. Perhaps strangely, some seem to cope with the sun better when it is really hot.

There is so much metal in the framework of my greenhouse, that all the plants go into and out of shade all day, so it is unlikely that any get 17 hours, or anything like it....

[ralphrmartin]

One more from today, a very old plant of G. quehlianum

I like its pure white flowers.

[Christian]

I agree, they are lovely, nice old plant too!

Just adding another couple of favourites. I'll say that for a large part Gymnos are not top-shelf plants for me. G. damsii and others from that section in particular like the heat, but (coming from the Chaco forests) seem to prefer some shade.

G. guanchinense

G. tillianum - pictures from last year.

[el48tel]

Top notch

[juster]

Those are lovely ones Christian, thanks for adding them on

[Astro]

The yellow spined variant of G. neuhuberi. It had a whole bouquet of flowers earlier, but I didn't take a photo...

Gymnocalycium neuhuberi

[juster]

Lovely plant and flower, thanks!