Garden Cosmos 'Cosmic orange'

Cosmic orange likes a position of full sun and remember to water moderately. Keep in mind when planting that Cosmic orange is thought of as tender, so remember to ensure that temperatures are mild before moving outdoors. A soil ph of between 6.6 and 7.8 is ideal for Cosmic orange as it does best in weakly acidic soil - weakly alkaline soil.

Aim to sow 0.25 inches (0.64 cm) deep and try to ensure a gap of at least 0.98 inches (2.5 cm). Soil temperature should be kept higher than 20°C / 68°F to ensure good germination.

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

As Cosmic orange is tender, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.

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

Orange cosmos

¹ Latin Dictionary