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.
How to Grow Chrysanthemums
Learn how to grow Chrysanthemums from seed. Perennial plants that regularly undergo name changes, and may be listed as Chrysanthemum, Leucanthemum, Pyrethrum, or Tanacetum.
Shasta daisy: Leucanthemum x superbum & Painted daisy: Chrysanthemum coccineum
Season & Zone
Exposure: Full sun
Start indoors mid-February to mid-April, and transplant or direct sow starting around mid-May. They can also be direct sown in mid-September to October.
Sow seeds on the surface of a sterilized starting soil. Provide bright light and use bottom heat to keep soil at 18-21°C (65-70°F). Seeds will germinate in 10-14 days. Space transplants at 25-45cm (8-18″) apart.
Grow in a rich, well-drained, evenly moist soil in full sun. Good drainage in winter is essential. Pinch back young plants to keep them bushy. Deadhead regularly. Tall plants may require staking.
White flowering mums repel Japanese beetles.
More on Companion Planting.
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