This is the One I'm talking About, is it a Hiemalis/Elatior/Reiger Type or a Tuber Type?

Many Thanks

That would be a tuberous type begonia. It will eventually die back to the ground. You can propagate new plants from a mallet cutting (I have not done any of these as I find tuberous too difficult for my region - Atlanta) but check out Scotland's Begonia Society website on how to do this. Also if you are on FB, join Planet Begonia and look for Phil Champion - a grower of many tuberous in England. He has it down to an artform.

The tuber will get larger over the years and can be cut as well but again, saying and doing are two different things. Most tuberous begonias sold are treated as annuals as folks find them too much trouble to keep over to the next year.

https://www.facebook.com/photo.php?fbid=918078761674569&set=pob.100004173607883&type=3&theater

https://www.google.com/search?q=scottish+begonia+society&tbm=isch&source=univ&client=firefox-b-1-d&sa=X&ved=2ahUKEwiFmrfnvpXhAhUCNd8KHYmHBTQQsAR6BAgJEAE&biw=992&bih=448

it looks more like Elatior/Rieger type to me. why do you think it's tuberous? the leaves/flowers on tuberous are much larger usually. and Rieger/Elatiors are often sold this time of year.

The stalk size, the leaf size and shape, even the blooms look tuberous to me. One way to find out - pull it out of the pot and shake the potting mix away. See if there is a tuber there. But this will probably put the plant into a stressful state and may cause it to drop everything. Best to wait until it goes down and see which type it is if it is that important.

Not a huge deal either way as I don't buy Elatior types (too much like an annual for my likes) but I will humor myself and pick up 2 to 3 tuberous each year - just to see what they will do.

Both types are pretty flowering plants but are a tad finicky.

I had many non-stop begonias that looked just like that: they are considered semi-tuberous. but usually they are sold as rooted cuttings in bloom and do not have any tubers yet. they perform much better then large tuberous in the heat of summer. but mine bloomed best at cooler temps of may-june and oct-nov.

a couple of times I grew them well into fall to see if they will set tubers. and they did: they were about an inch wide and did not overwinter. tried to overwinter them in pot without digging up: that also did not work. so they are definitely annuals for me.

I agree that non-stops look much like the photo shown. Non-stops are still considered tuberous though, right?

An article about non-stops and how to care for them. If I buy any, I treat them as annuals.

https://homeguides.sfgate.com/grow-nonstop-begonias-42975.html

yes, nominally they are tuberous or semi-tuberous on some sights. but the tubers are so small and so hard to save/restart that really it's quite pointless.

basically I read that you need to grow them without dormancy for 2 years to get a decent tuber. and those ones they sell in pots in full bloom are from cuttings and they do not have any tubers yet: checked :).

Whereas real large tuber begonias are a totally different game. From what I know they do very well in British climate with cool damp nights. non-stops prolly do well too :). I struggled with even non-stop blooms until it got cooler into 60s at night.

They do very good in CA too. Anyhow, they are not Elatior/Hiemalis types.

Saucer plate size at S.F. Convention 2010

The little orange blooming one is probably sutherlandii or a Hiemalis type.

Not in the show but part of the foyer display

I can't remember if they put these on all the banquet tables at the Awards Ceremony or not.

those are gorgeous! but it's too hot for them here :(.

i saw outstanding displays in BC in Butchart gardens in Victoria.

I bet you did see some gorgeous tuberous at Butchart (and other plants too)! Seems like the west coast grows tuberous like no one else. I did see some nice tuberous baskets at King's Dominion Amusement Park in Richmond over 40 years ago but never knew what they were at the time and thought they were wonderful. I wonder what their secret was? Take them down every evening and put them in an AC room? They were at least 10 feet off the ground so it would've been a task to do it but then amusement parks have budgets to do everything to a grand scale.

m-m may be climate was a bit different then ;)?

King's Dominion was hotter than blazes back then, probably about the same today (summer temps). I agree that winter temps have changed quite a bit over 40+ years (seems milder and not as long) but summer is probably about the same - well maybe 99 is a little hotter than 98?

i always wondered how the huge flower baskets in iron frames lined in coir are able to survive on lampposts ..muni planting watered occasionally. there is definitely some secret here..

Keep them watered and they will do fine. How to do it is another matter.

Here are two coir lined baskets of begonias (Dragon Wings I think) at Busch Gardens in Tampa. They looked pretty good to me.

dragon wings, yes! they can definitely withstand the heat. and Solenia non-stops too,

much better then regular non-stops. my regular non-stop grow well in the heat, but they stop blooming ;)...

When we went to King's Dominion it was August so it was very hot. Of course the baskets of tuberous begonias were not in the hot sun but under the filtered shade of large trees but the ambient temperatures were probably in the mid to high 90's. Whatever the groundskeepers did, they did it very well - maybe they replaced them each week?

yes, we have plenty of dragon wing begonias in the ground in NYC and they continue to bloom and grow in the heat.