We have a perennial begonia plant with large leaves and pink flowers that bloom in spring on medium size stalks. Could you tell me the horticultural/latin name for this plant? The leaves are very large and sturdy. Thank you
This could be a rhizomatous begonia, since most of these bloom in spring and some have very large leaves.
Also see this article:
https://www.gardeningknowhow.com/ornamental/flowers/begonia/begonia-leaves.htm
Is it possible to leave Tuberous-rooted Begonias in the ground over Winter? Would they flower again as well in subsequent years? I have always lifted them, once the flowers have finished and the leaves are starting to drop off, dried them and kept them for future years, restarting them off again in Spring. But I am thinking of having a huge display of these Begonias as "bedding plants" next year, and it will be too much work (and I have not enough storage-space) for me to lift them and dry them all out. What will happen if I leave them in the ground? Would they just rot away?
Most tuberous begonias would probably not survive this, because the ground would get too cold during the winter. One variety that your plan may work for is Begonia grandis evansiana, known as the hardy tuberous begonia, especially if it is provided with mulch for some protection from cold.
http://www.uaex.edu/yard-garden/resource-library/plant-week/begonia-10-7-05.aspx
http://www.extension.umn.edu/garden/yard-garden/flowers/tuberous-begonias/
https://www.rhs.org.uk/advice/profile?PID=815
I have got begonia plants in the garden and want to try to save them for next year. What steps can I take?
This link will help you.
https://www.gardeningknowhow.com/ornamental/flowers/begonia/wintering-begonias-overwintering-a-begonia-in-cold-climates.htm
One of your answers is begonias do not go dormant. Next answer is, allow the plant to go into dormancy. ????????????
Whether you can grow a begonia indoors depends on which type you have. Some need to go dormant to trigger the bloom cycle for next summer. Many are not very attractive indoors as their preferred growing conditions are difficult to match. Proven Winners discussing the different types and how they perform as houseplants. https://www.provenwinners.com/learn/overwintering-begonias
I purchased a begonia last june and left it out side, now with fall arriving I want to bring the begonia in the house. Should I spray it first in case there are bugs or insects on it? What should I use?
Check over the plant for any visible bugs on the tops of leaves, undersides of leaves, stem, and soil surface. Also check for bug damage, such as small bites taken out of the leaves. If you don't see any, there are probably no bugs and it's perfectly fine to bring inside. As described in this article, you can also wash the plant foliage with water or with a dilute dish soap solution, or use a natural insecticide if you do see bugs:
https://www.gardeningknowhow.com/houseplants/hpgen/acclimate-plants-indoors-winter.htm
Will these carry on flowering if brought into a conservatory?
Your plant will need a dormancy or rest period, even indoors for winter.
This article has more information.
If I want to winterize begonias that are growing in wire baskets, do I cut back the leaves before moving them to a cool, dark, dry location?
Yes, but you will want to remove the soil and let them dry in the sun first. Then you can cut the dead foliage off. This article will tell you exactly what you need to know: https://www.gardeningknowhow.com/ornamental/foliage/holly-fern/growing-holly-fern-plants.htm