Gramp's Vegetables

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Across
  1. 1. tress as I call them(8)
  2. 4. good for iron!!!(10)
  3. 5. you can have these roasted,mash,fried,chips(8)
Down
  1. 1. you had 28 of these up north(5)
  2. 2. its corn but doesn't go in a cereal(9)
  3. 3. help you see in the dark(7)