35 to 40 days to maturity. Cleome gynandra. Wild Spider Flower Seeds. Annual. Wild Spider Flowers are an edible flower variety that originally hails from Africa, but it has also spread throughout Asia. If you give it a chance, it will spread to your garden too! This variety grows as a bush and reaches a height of about 3 feet tall. The flowers are small and delicate. Each stem will grow 3 to 6 leaves that have a bitter flavor similar to mustard greens. ~ 13,900 seeds / oz.