Heirloom Herb. Chamomile seeds produce plants that can self-sow and may establish adventive stands. Full sun is essential for best flower production. Aromatic daisy-like flowers are used for teas, perfumes and potpourris. Multi-branched spreading plants grow to 30 cm (12″) wide and up to 60 cm (24″) tall. Chamomile is a very easy plant to grow and makes a great plant for the back of rock gardens! Also known as Kamille or Mayweed. Annual.