How to grow Garden Cosmos 'Tall mix'
Try to plant in a location that enjoys full sun and remember to water moderately. Keep in mind when planting that Tall mix is thought of as half hardy, so remember to protect this plant from frosts and low temperatures. Tall mix requires a soil ph of 6.6 - 7.8 meaning it does best in weakly acidic soil - weakly alkaline soil.
Growing Tall mix from seed
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 20°C / 68°F to ensure good germination.
Transplanting Tall mix
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Tall mix is a half hardy plant.
Harvesting Tall mix
The botanical epithet is from the Latin bipinnatus meaning “staunch” or “like two small wings”.
Footnotes