Green Thumb

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Across
  1. 1. — Decayed organic matter
  2. 4. — Where surplus plants are sold
  3. 5. — Natural soil amendment
  4. 8. — Creating new plants
  5. 10. — Ideal garden soil mix
  6. 12. — Cold-weather threat
  7. 15. — Young sprouted plant
  8. 19. — Low-growing culinary herb
  9. 21. — Climate-based planting guide
  10. 22. — Woody perennial herb
  11. 25. — Clippings used to grow plants
  12. 27. — Cutting back for growth
  13. 28. — Slow, root-level irrigation
  14. 30. — Soil-covering material
  15. 34. — Removing spent blooms
  16. 35. — Cultivating plants for pleasure or food
  17. 36. — Two-year plant cycle
  18. 37. — Plant-shopping destination
Down
  1. 2. — Move a plant to a new spot
  2. 3. — Plant that returns yearly
  3. 6. — Soil’s ability to shed water
  4. 7. — Plant nutrient source
  5. 9. — Bright green garnish herb
  6. 11. — Spreading aromatic herb
  7. 13. — Essential plant care
  8. 14. — Controlled growing structure
  9. 15. — Amount of daily light
  10. 16. — Pot-confined condition
  11. 17. — Tender annual herb
  12. 18. — Nutrient-rich surface layer
  13. 20. — Culinary plant collection
  14. 23. — Soft-leaved savoury herb
  15. 24. — Fragrant purple perennial
  16. 26. — Container soil blend
  17. 27. — Soil acidity measure
  18. 29. — Colour-shifting flowering shrub
  19. 31. — Able to survive cold
  20. 32. — Low-light condition
  21. 33. — One-season bloomer