Sunflower 'Green Ice'

Helianthus annuus

How to grow Sunflower 'Green Ice'

  • Full Sun

  • High

Try to plant in a location that enjoys full sun and remember to water often. Keep in mind when planting that Green Ice is thought of as half hardy, so remember to protect this plant from frosts and low temperatures. Ideally plant in loamy and clay soil and try to keep the ph of your soil between the range of 5.7 and 8.1 as Green Ice likes to be in weakly acidic soil to weakly alkaline soil.

Growing Green Ice from seed

Try to aim for a seed spacing of at least 4.68 inches (12.0 cm) and sow at a depth of around 0.49 inches (1.25 cm). Soil temperature should be kept higher than 13°C / 55°F to ensure good germination.

By our calculations, you should look at sowing Green Ice about 21 days before your last frost date.

Transplanting Green Ice

Ensure that temperatures are mild and all chance of frost has passed before planting out, as Green Ice is a half hardy plant.

Harvesting Green Ice

Sunflower Green Ice Etymology

The botanical epithet is from the Latin annuus meaning “annual”.1

Footnotes