Sunflower 'Giant Gray Stripe'

Feed weekly for max size.²

Try to plant in a location that enjoys full sun and remember to water often. Keep in mind when planting that Giant Gray Stripe is thought of as half hardy, so remember to protect this plant from frosts and low temperatures. Planting Giant Gray Stripe in loamy and clay soil with a ph of between 5.7 and 8.1 is ideal for as it does best in weakly acidic soil to weakly alkaline soil.

Sow 1" deep after danger of frost is past. Germinates in 10-14 days.²

Try to aim for a seed spacing of at least 4.68 inches (12.0 cm) and sow at a depth of around 0.94 inches (2.4 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 Gray Stripe about 21 days before your last frost date.

As Giant Gray Stripe is half hardy, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.

Harvest 80-100 days after sowing. Harvest when the seeds appear mature and petals are dry. Cut flower heads from stalk and hang upside down to dry. When dry rub the seeds out of the head. Allow to dry further until seed shells are brittle and crack easily.²

Seeds are a good snack for humans, and a good addition to wild bird feeders or chicken feed.²

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

Giant Greystripe, Giant Grey Stripe, Giant Gray Striped, Giant Grey Striped

¹ Latin Dictionary

² Victory Seeds