Sunflower 'Giant Single'

A full sun position will ensure your plant thrives and remember to water often. Keep in mind when planting that Giant Single is thought of as half hardy, so remember to watch your frost dates and ensure you have this plant protected when the temperature dips. Giant Single requires a loamy and clay soil with a ph of 5.7 - 8.1 - it grows best in weakly acidic soil to weakly alkaline soil.

Ensure a distance of 4.68 inches (12.0 cm) between seeds when sowing - look to sow at a depth of approximately 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 Giant Single about 21 days before your last frost date.

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

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

Giant Gray Stripe, Giant Greystripe, Giant Graystripe Mammoth Gray Stripe, mammoth Greystripe, Gray Stripe, Greystripe, Gray Titan, Graystripe Titan, Greystripe Titan, Russian Giant

Mammoth, Giant, Giant Flowered, Mammoth Grey Stripe, Titan, Giant Grey Stipe, Giant Russian

¹ Latin Dictionary