So IMO it's worth keeping bigger corms, rather than splitting them up. Lesley x I'm not good, I'm not bad - I'm just me, and sometimes I have to apologise for that. I agree with MoS, that it is better to keep them as large and very prolific corms. However, if you absoutely must cut them up, wait until they have dies back completely and then make sure you have at least one bud on each. Dust the cut surface with fowers of suplphur to prevent it hopefully prevent it rotting.
But I have some that are four years old and give amazing displays -- corms are about ins across. Begonia tubers can be forced to propagate by dividing stem and tuber cuttings and will propagate on their own by seeding and by naturalization in the landscape. Even under the best circumstances, begonias can be finicky to propagate and the failure rate can be quite high.
Patience is essential when trying to multiply begonia tubers. Dig up and divide your begonia tubers in the late spring or late summer while the plant is in its active growth phase. Brush off excess soil and make clean cuts along the tuber, making sure that there is at least one, and better yet two or three stems sprouting from each cut section.
Garden Planning. Question by acwir April 14, A comment from ragman April 2, Answer from NGA April 14, A comment from cpreg March 10, You must be signed in before you can post questions or answers.
Click here to join! I managed to cut a large begonia tuber last year into 8 viable I managed to cut a large begonia tuber last year into 8 viable smaller tubers. Good advise from Mr Veritas but I would also dust them with yellow sulphur where the cut is to prevent rot. Thanks carlto, I have never tried that,but I will!
Sorry carlton I missed an n!
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