The Lupine Hummingbird card is a picturesque treat for the nature lover in your life. You could use it as a Mother’s Day card, a birthday card, or a ‘just because’ greeting card to celebrate someone who makes you buzz with joy. Hummingbirds are known to represent energy and perseverance, so you could also use this hummingbird card to offer an extra boost of strength to a loved one going through a tough time.