andy17

Hi misslyn,
From the pictures it's kind of hard to tell full condition of the plant, but my initial guess would be a cultural problem. Even though bananas love fertilizer/nutrients, their roots will also burn if too much fertilizer is given before they can establish and acclimate. I did this with one of mine growing in a pot. The leaf edges turned a very similar crispy brown color. I immediately backed off the fertilizer and watered it thoroughly to help dilute the nutrients in the potting soil , and that definitely helped it. Also, unless temperatures are really high, water every day could be too much, especially if they're in the ground and just starting to grow. Did the leaves turn yellow first or exhibit any kind of wilting before turning brown? I hope this helps!