Tuberous Begonia
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Selecting Tubers: Select large, firm tubers. Select upright varieties for pots;
cascading varieties for hanging baskets.
Starting Tubers in Flats: Full development of roots is a crucial step in growing
beautiful Begonias. Wait until pink buds appear on tuber before planting.
First, fill a nursery flat with a mixture of
2/3 Roger's Potting
Soil and 1/3 Leaf
Mold. Place tubers concave side up and cover with 1/2 inch of soil. Water thoroughly. Keep
moist but not soggy. Place flat in bright, filtered light (NOT direct sunlight). A warm 65° to
75°F temperature will hasten growth.
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Transplanting:
When the first two leaves have reached equal development and the
roots are heavy the plant will adjust to being transplanted into a container.
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Watering:
Water only when surface of soil is starting to dry out. Check soil by hand
to determine wetness. Apply water to soil surface
only _ avoid getting water on foliage. Water deeply and thoroughly.
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Location:
Place in strong light but shield from direct sun rays. Protect from wind
and place in an area with good air circulation. Adequate space between plants will
greatly reduce the chance of powdery mildew forming.
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Fertilizing:
Once plants are established, feed every two weeks with
Roger's Flower Food at half strength. Continue throughout blooming season through September.
Fertilize only after plant has been watered thoroughly.
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Spraying for Mildew:
Preventative spraying with
Ortho Funginex is highly recommended. However, if mildew
does appear, spot spray infected area.
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Protection against Snails, Slugs and Worms:
We recommend That's lt for snails and slugs;
Safer B.T. for worms .
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After Bloom Care:
When the plant turns yellow and begins to fall apart (usually in
late fall), it is time to stop watering and allow the tuber to go dormant. Dig up the tuber and
clean off all dirt and debris. Place it in hot sun for several days to
dry out. Remove any trace of old stem. When thoroughly dry, store in a paper bag (not plastic) in a cool, dry place.
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