Hawaiian Ti Plant Frost Damage . We know that cutting them down to 7 inches is seen as drastic. (this does not happen as much with fabric covers.) it's typical for. Ti Plant Florida from tiffanymillerdesign.blogspot.com How to grow ti plant from seed. Trimming ti plant or cordyline fruticosa is easy and it grows again so don’t worry much. Use a sharp knife and cut the stem at least 2 inches (5 cm) below the bottom leaves.