Across
- 5. process used to make soil more fertile
- 6. a plant covered with long sharp points
- 8. a plant’s ability to survive during drought
- 10. process that keep plants moist
- 12. to retain green leaves throughout the year
- 15. happens when sunlight mixes with a plant’s chlorophyll and other pigments
- 16. upper layer of earth where plants grow
- 17. tightly packed soil
Down
- 1. can thrive indoors
- 2. mixture of organic materials used for plant growth
- 3. a genus of perrenial wild flower
- 4. plump areas on the plant
- 7. to get bigger
- 9. having the characteristics of an herb
- 11. to be present year round
- 13. part of the plant that attaches to the ground
- 14. a type of flower