Learning how to water plants to increase growth in pots, container or garden - especially how to water roots and tubers. Specialities: root growth or tuber growth of lawns, fuchsias, geraniums, dahlias and begonias.

17 March 2011

Begonia Tubers Cooled Down

begonias budding in propagatorIt seems ages since I put the begonia tubers in the propagator. As you can see, there are enough shoots to take some cuttings. But because I have cooled off and opened up the propagator, they will not be big enough for a while yet. This is fine, since it will mean we can propagate cuttings without bottom heat, giving much sturdier stock.

Night temperatures have been quite low recently, down to 5 deg C. This should be O.K. Because dormancy has been broken, there is not much danger of it being reinstated. Dormancy is usually hormonal (controlled by abscisic and gibberelic acids in seeds), induced by daylength. So we don't actually need constant heat, just at the start.

The wayward begonia (the one which had already begun germination) has not done too well. Although the initial pair of shoots have developed, only two more shoots have formed. This might be because I didn't cover the tuber with compost (although I didn't cover the one shown, either).

The tubers placed in pots are doing well.

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