168 WINTER PROTECTION OF PLANTS 



When storing these plants first try to secure the best 

 storage faciUties. Then dig up the roots after the tops have 

 been killed by frost, leaving some soil attached to them. The 

 roots should be placed side by side on shelves built in the 

 storage house. If the proper conditions are maintained the 

 roots will come out of storage in the spring in excellent shape. 



Where only a few roots are kept over winter usually fair 

 results can be had by collecting the roots and packing them 

 in sand in one corner of the cellar. They should be kept as 

 cool as possible and if they are found to be drying out during 

 the winter the sand should be sprinkled with water. 



REVIEW QUESTIONS. 



1. What is winter killing of plants? How is it caused? 



2. How does fall preparation of plants prevent winter killing? 

 .3. Why is winter protection of some plants necessary? 



4. How does the winter^ care of the herbaceous plants differ from that 

 of the woody plants? 



5. Why is alternate freezing and thawing of the ground injurious to 

 roots? 



6. What part of a plant is called the cane? 



7. What two ways are plants protected from wind? 



8. Describe the method of wrapping woody plants. 



9. What is meant by mulching? 



10. What materials are used for mulching? 



11. What determines the depth of the mulch? 



12. How does the mulching of herbaceous plants differ from that of woody 

 plants? 



13. Describe the spring treatment of mulched plants. 



14. How does the winter care of bulbs differ from that of fleshy-rooted 

 plants? 



15. Describe the method of storing fleshy roots over winter. 



