Garden Cosmos 'Seashells Mix'

Cosmos bipinnatus

How to grow Garden Cosmos 'Seashells Mix'

  • Full Sun

  • Medium

Plant in a location that enjoys full sun and remember to water moderately. Keep in mind when planting that Seashells Mix is thought of as tender, so remember to wait until your soil is warm and the night time temperature is well above freezing before moving outside. Seashells Mix requires a soil ph of 6.6 - 7.8 meaning it does best in weakly acidic soil - weakly alkaline soil.

Growing Seashells Mix from seed

Sow seeds where they are going to stay in late spring or at 61 degrees F in mid-spring.

Try to aim for a seed spacing of at least 0.98 inches (2.5 cm) and sow at a depth of around 0.25 inches (0.64 cm). Soil temperature should be kept higher than 16°C / 61°F to ensure good germination.

By our calculations, you should look at sowing Seashells Mix about 28 days before your last frost date.

Transplanting Seashells Mix

Ensure that temperatures are mild and all chance of frost has passed before planting out, as Seashells Mix is a tender plant.

Harvesting Seashells Mix

Garden Cosmos Seashells Mix Etymology

The botanical epithet is from the Latin bipinnatus meaning “staunch” or “like two small wings”.1

Other Names for Garden Cosmos 'Seashells Mix'

cosmos

Footnotes