Eschscholzia mexicana (Mexican Gold Poppy). Recommended Temperature Zone: All zones as an annual. Origin: Mexico, southwestern USA. Color: shades of silky yellow / gold. Creates a dazzling display, especially when naturalised and allowed to self-sow. Sowing instructions: Sow thinly, 1/4" deep 12" apart in well cultivated soil. Germination takes 14-21 days. Growing Instructions: full sun and water sparingly. Plant out in spring after all risk of frost. Flowering period: Summer