Secret Santa's plant health crossword

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Across
  1. 3. Might result in disappointed reindeer (6,3)
  2. 7. (Christmas) tree climber (3)
  3. 8. Edible Christmas tuber (6)
  4. 9. Wise man's resin (5)
  5. 13. Deck the halls in latin (4,10)
  6. 14. Leaving this for pastures new (10)
  7. 17. Prickly wine (9)
  8. 19. Herb for stuffing (4)
  9. 20. Wise man's resin (12)
  10. 21. Weed carried by stable visitors (9,5)
  11. 24. Deer fencing won't keep this character out! (7)
  12. 26. Belgian buttons (8,7)
  13. 27. South American nut? (6)
  14. 28. Citrus bubbles (5,4)
  15. 29. Fine words won't butter these Christmas vegetables (8)
Down
  1. 1. More damaging in spring than in the bleak midwinter (5)
  2. 2. Christmas houseplant (10)
  3. 4. Precipitating bulbs (9)
  4. 5. Inedible Christmas tuber (8)
  5. 6. Your Christmas tree won't last long if it gets this (5,6)
  6. 10. Our new home (7)
  7. 11. Lights up Wisley (4)
  8. 12. In the bleak mid...(pest) (6,4)
  9. 15. Departing leader (6,6)
  10. 16. Home of Perdix sp. (5,8)
  11. 18. Sweet made from bamboo? (5,4)
  12. 22. O latin name! (5,5)
  13. 23. Could leave you with no chestnuts (6)
  14. 25. Fruit found on a calendar (5)