Sunflower 'Red Sun'

Helianthus annuus

How to grow Sunflower 'Red Sun'

  • Full Sun

  • High

Red Sun Sunflower is an annual flowering plant that will produce beautiful bright red blooms 5 to 6 inches in diameter.2

Try to plant in a location that enjoys full sun and remember to water often. Red Sun is generally regarded as a half hardy plant, so remember to protect this plant from frosts and low temperatures. Red Sun needs a loamy and clay soil with a ph of 5.7 to 8.1 (weakly acidic soil to weakly alkaline soil).

Growing Red Sun 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). For optimal germination, soil temperature should be a minimum of 13°C / 55°F.

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

Transplanting Red Sun

Red Sun is half hardy, so ensure you wait until all danger of frost has passed in your area before considering planting outside.

Harvesting Red Sun

Sunflower Red Sun Etymology

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

Other Names for Sunflower 'Red Sun'

sunflower

Footnotes