Horticulture/Greenhouse Crossword

2. Unwanted plants that compete with crops for nutrients, water, and light
3. A young plant that has recently sprouted from a seed
5. Zone A geographic area defined by climate conditions that affect plant growth and survival
6. The amount of moisture in the air, important in greenhouse environments
9. A plant that completes its life cycle in one growing season
12. Cutting away parts of a plant to improve growth and shape
15. A structure made of glass or plastic used to grow plants in a controlled environment
16. The process of creating new plants from seeds, cuttings, or other plant parts
17. The process by which plants use sunlight, water, and carbon dioxide to make food (sugars)
20. A layer of material placed on soil to retain moisture and suppress weeds

1. A substance added to soil to provide essential nutrients for plant growth
4. The stage when a seed begins to sprout and grow into a plant
7. Moving a plant from one location to another
8. The ability of soil to allow excess water to flow away
10. The artificial application of water to plants
11. The transfer of pollen from one flower to another to enable fertilization
13. A plant that lives for more than two years and comes back each growing season
14. Decomposed organic material used to enrich soil
18. pH A measure of how acidic or basic the soil is, affecting nutrient availability
19. Growing plants without soil, using nutrient-rich water instead