What can you do in horticulture?

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Across
  1. 2. the study of trees
  2. 3. little white balls on them
  3. 4. fixing up developed or industrial sites
  4. 7. soil less gardening
  5. 9. producing a new young plant
  6. 10. physical installation of rock, soil, concrete etc.
  7. 12. term was coined for conserving tender greens
Down
  1. 1. incorporating food gardening into landscapes
  2. 5. a plant scientist
  3. 6. a logical and informal means of pest control
  4. 7. gardens with medicinal, culinary and cultural useage
  5. 8. mentoring and passing along information
  6. 11. parks dedicated to trees
  7. 13. field of trees for fruit production