Things You'll Need:
- Begonias
- Shears
- Fertilizer
- Watering can
- Dry peat moss
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Step 1
Start your tuberous begonias inside about one month before the last frost is expected. Plant the begonias so they have a 2-inch layer of soil above the top of the tuber. Keep the planter moist, but not wet.
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Step 2
Transplant begonias outside when all threats of frost are gone. Select a planting region of your yard that is shady most of the day and is protected from the wind. If at all possible, plant the begonias where they will get late afternoon sun. If you are planting begonias in a flower bed, space them so that they are between 8 and 12 inches apart. Cover the begonia tubers with 2 inches of soil. Apply a liquid fertilizer that advertises that it will work for begonias, such as a liquid fish emulsion fertilizer or Miracle Gro.
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Step 3
Keep begonias moist, but do not saturate them with water. Water your begonias at ground level so that the leaves and stems do not develop mildew or other diseases.
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Step 4
Deadhead the begonias as needed. Deadheading is simply the process of removing flowers that have wilted or withered. You can deadhead begonias with the pinch and pluck technique or you can snip them off with a pair of plant shears.
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Step 5
Dig up the begonias at the end of the season and allow them to dry inside. When the tops of the begonias dry up, snip them off with your shears and pack away the tuberous root systems in dry peat moss. You should store the tubers and peat moss in a dark area that stays between 35 and 45 degrees F. This will keep them alive for the next planting season.
