Garden Cosmos 'Double Klondike Gold'

Cosmos bipinnatus

How to grow Garden Cosmos 'Double Klondike Gold'

  • Full Sun

  • Medium

Try to plant in a location that enjoys full sun and remember to water moderately. Keep in mind when planting that Double Klondike Gold 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. A soil ph of between 6.6 and 7.8 is ideal for Double Klondike Gold as it does best in weakly acidic soil - weakly alkaline soil.

Growing Double Klondike Gold 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.

By our calculations, you should look at sowing Double Klondike Gold about 28 days before your last frost date.

Transplanting Double Klondike Gold

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

Harvesting Double Klondike Gold

Garden Cosmos Double Klondike Gold Etymology

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

Footnotes