Tanacetum coccineum. Robinson's Giants Painted Daisies have the classic Chrysanthemum daisy form, and bloom from May to July in hot pink, bright fuchsia, deep rose, and scarlet. Robinson's Giants are extremely easy to grow, and reach a height of 90cm (36") in just one season. In general, daisies are grown for masses of reliable blooms in late summer and autumn. Do not cover seeds; seeds germinates in 7 to 28 days. Pinch tips for bushier plants. Chrysanthemums have a confusing classification system, and the Latin names have changed over time. Some sources still list Robinson's Giants as Chrysanthemum coccineum.