Planting Begonia Bulbs - Knowledgebase Question

Beverly, Ma
Question by eamruta3
June 30, 2010
I planted 4 begonia bulbs in Febr. in containers indoors. They sprouted and put out a set of leaves but then the leaves fell off. What did I do wrong? I bought a few more today. Appreciate tips of planting and growing Begonia of different colors. These are trailing type. I live in Massachusetts (ZIP= 01915)
What kind of soil? How much water? what kind of plant food & how often?etc.Thanks.AmrutaRE

Answer from NGA
June 30, 2010


Tuberous begonias go dormant in the fall and should be stored dry until about 2 months before the expected arrival of 50 degree F. nights. To plant, press them, hollow side up, into flats filled with damp peat moss, but do not cover them. When growth starts, pot in 5- to 6-inch pots in a mixture of 2 parts loam, 2 parts peat moss and 1 part well-rotted cow manure. When night temperatures rise above 50 degrees set the plants outdoors. Feed with a weak, all-purpose fertilizer such as 5-10-5 every 2-3 weeks from the time the first shoot appears until the foliage starts to wither. When the plants have died back to the ground, dig up the tubers, allowing some soil to cling to them; place the tubers in a sheltered frost-free spot for a few weeks until they are so dry that their stems and the soil around them break away easily. Store the tubers over the winter in bags of dry vermiculite. Hope this answers all your questions. Enjoy your begonias.

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