Say it with flowers

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Across
  1. 2. The anniversary of which prime ministers death is commemorated in the U.K. as Primrose Day?
  2. 5. Which flower is often called the 'winter rose' or 'Christmas rose'?
  3. 7. What flower is a traditional symbol of the Chinese New Year?
  4. 9. What flower is traditionally worn by Hawaiian women to indicate their marital status?
  5. 11. What is the national flower of Mexico?
  6. 13. Which flower’s colour depends on the amount of acid in the soil?
  7. 14. A white lily is used as a symbol for modesty and new beginnings. What does an orange lily symbolize?
  8. 16. Which small flower, usually with 5 blue or purple petals, is associated with freemasonry and has the scientific name Myosotis?
  9. 17. Though native to Europe and Asia, violets are the state flower of this US state…
  10. 20. symbol of Flanders
  11. 22. What flower inspired the poem 'I wandered lonely as a cloud'?
  12. 24. What flower is associated with the goddess Venus in Greek mythology?
  13. 25. This flower is also known as “fairy cup” because of its connection to fairies according to Scottish legends.
  14. 27. What was the first plant grown in the ISS?
  15. 28. What is the common name for the blue flower ‘Myosotis’, also known as mouse’s ear?
  16. 30. Which flower’s name comes from the Ancient Greek word for star?
Down
  1. 1. What is the national flower of Scotland?
  2. 3. What is the rarest flower in the world?
  3. 4. An iris with thick, fuzzy patches on the flower falls is called a…
  4. 6. What flower is the official state flower of Texas?
  5. 8. This flower is actually two flowers in one! It has consumable leaves and its name is also a popular women’s name
  6. 10. What is the official flower for 1st wedding anniversaries?
  7. 12. What colour is the welsh poppy?
  8. 15. Dianthus barbatus gets its common name from a story about young lovers separated by the sea; how do we better know this flower?
  9. 18. Which blue flower of the genus Veronica is also the name of the ship which was to accompany the Mayflower with the Pilgrim Fathers?
  10. 19. Which flower is sometimes called the sword lily?
  11. 21. What is the most popular flower in the world?
  12. 23. What is the Japanese term for cherry blossom?
  13. 26. This flower grows on trees and produces pollen instead of nectar.
  14. 29. Saffron comes from which type of flower?