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BULBS

BULBS. Original PowerPoint Created by Howard Henderson Modified by Georgia Agricultural Education Curriculum Office June, 2002. BULBS. Refers to bulbs, corms, tubers, and rhizomes These are structures that contain an embryonic plant. Uses of Bulbs in the Landscape. In wooded areas

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BULBS

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  1. BULBS Original PowerPoint Created by Howard Henderson Modified by Georgia Agricultural Education Curriculum Office June, 2002

  2. BULBS • Refers to bulbs, corms, tubers, and rhizomes • These are structures that contain an embryonic plant.

  3. Uses of Bulbs in the Landscape • In wooded areas • In rock gardens • With evergreen shrubs • As cut flowers

  4. Flowers Grown from Bulbs • Hyacinths • Tulips • Daffodils • Flowers can be used as cut flowers, in rock gardens, and in wooded areas.

  5. Landscaping • The effect most striking when landscaping with bulbs is massing, or planting in circular groups.

  6. Planting in Fall • Bulbs planted in the fall give color to the landscape in the early spring.

  7. Organic Matter • Bulb production can be increased by the addition of well-rotted manure.

  8. Type of soil • Loam • Well-drained • Add organic matter 3-4 in. thick; work into the soil.

  9. Soil pH • If soil pH is below 6.0, add 10 lb. of ground limestone per 100 square feet.

  10. Fertilizer • Fertilize by digging a small amount of 5-10-5 fertilizer into the bottom of the bed. • Fertilizer should be covered with about 1” of soil. • DO NOT place the bulbs in direct contact with the fertilizer.

  11. Spacing • As a general rule, bulbs should be spaced the same distance apart as their planting depth.

  12. Storage • Keep bulbs that are dug up at 50 degrees F.

  13. Protection • To protect from insects, diseases, and rodents, dust bulbs with a pesticide.

  14. Spring Planting • Planttuberous begonia, calla, gladiolus, dahlia, tigridia, montbretia, ismene, amaryllis, anemone, and ranunculus

  15. Fall Planting • Plant muscarri, hyacinth, crocus, scilla, chionodoxa, colchicum, iris, lily, tulips, and daffodil.

  16. Care of Spring Flowers • Bulbs flowering in the spring should be dug after the foliage turns yellow and dies back. • Daffodil, crocus, lily, and colchicum bulbs should be dug up every 3-5 years, thinned and replanted.

  17. Care of Summer Flowering Bulbs • Bulbs flowering during the summer should be dug after the first fall frost (ex. Dahlia, tuberous-toot begonia, calla, and gladiolus).

  18. Cold Treatment • It takes 10 to 12 weeks for forcing a tulip to bloom. • You should use large bulbs • For root formation you should place potted bulbs in a cold frame.

  19. Forcing Bulbs • Put bulbs in pots. • Store bulbs at 40-50 F. for 10-12 weeks. • Put pots in greenhouse at 60 F. • Keep pots moist.

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