What is schelenchyma?

How can I effectively get rid of sowbugs in my garden? How much water do lilacs need to thrive? Why didn't my seeds germinate as expected? Can you eat the weeping willow leaves? Can eucalyptus grow in water, and if so, what are the specific conditions required for successful growth? Can I put stones around plants for landscaping purposes? How can I effectively prune a maple tree to promote healthy growth and maintain its shape? Why are cocoons placed in tree trunks? What is a sunrise crop and a sunset crop? How can I effectively get rid of weeds in my flower beds? How should I properly prune an outdoor yucca plant? What is a pine cone? Where can you buy a Mexican Pitaya cactus? How often should you fertilize vegetables to ensure optimal growth and yield? Does a maple tree like shade or sun? Why are my baby watermelons turning yellow? Why is the pine tree Arkansas state tree? Why are my indoor plant leaves turning black? What is an example of osmosis in plant cells? Where is kelp grown?