Begonias come in over 1,500 species and over 10,000 hybrids, with new cultivars being introduced every year, notes GardeningKnowHow. It is quite likely that you’ll find just exactly the right type of plant you are looking for. Whether it is small and compact or large and sprawling, there are quite a few types of Begonias to choose from.
Begonia blooms are available in hues such as white, rose, pink, and red, with foliage in a variety of colors too! Foliage can be bronze, green, and variegated.
They are interesting shapes. They look like a brown squatty tomato with an indentation on top. The indentation is the portion with the leaves and stem will grow, the bottom round portion is where the roots will form. Be sure to orient the tuber correctly when planting it, with the indentation facing up. Planting the tuber upside down will drastically drain the plant, and will inhibit the amount of initial growth in the plant.
If you realize you planted the tuber upside down shortly after planting, gently dig up the tuber and replant it with the right side up.
Begonias grow well in a variety of containers, as long as there is adequate drainage.
Keep Begonias indoors until all threat of frost has passed. It’s best to limit transplant shock when possible. Wait until your Begonia has at least 2 medium sized leaves.
Question: My begonia started growing late this summer. I live in Zone 4. It is now starting to freeze outside, and the blooms are just starting. Do I let it go dormant, or do I leave it bloom?
Answer: Begonia's don't tolerate cold weather, and will die if left outside in the elements. Sadly, if you choose to keep the plant outside to enjoy the blooms you won't have it again next year. If you bring it indoors and "overwinter" the plant, you'll be able to plant the tuber later in the year.
Question: I am new to Begonias and I purchased one last summer. I was told to put in our basement until spring then just water it again and it will grow. Well I forgot I had it and didn't bring it up until the other day. I watered the begonia and gave it fertilizer and have it in a bright window. Do you think this will grow even though it is started so late?
Answer: Unfortunately I think it's too late in the season to try to plant it outdoors, but growing the begonia indoors as a houseplant shouldn't be a problem. In fact, begonias make great houseplants because of their bright blooms and unusual leaves.
Just make sure to place the pot in a place where it will plenty of bright indirect light, and have high humidity.