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Sunflower 'California Greystripe'

Helianthus annuus

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Belonging to the Helianthus genus (Helianthus annuus 'California Greystripe'), California Greystripe is a variety of Sunflower. California Greystripe grows as an Annual and is a Flower. Being an Annual, it tends to grow best over the course of a single year. California Greystripe is known for growing to a height of approximately 1.50 metres (4.88 feet).

Due to how easy it is to grow in a variety of conditions, California Greystripe Sunflower is great for beginner gardeners and those that like low maintainance gardens.

This variety plant info is provided by the myfolia gardener's wiki. All details about California Greystripe have been kindly provided by our members.

How to grow California Greystripe

  • Full Sun

  • High

Plant in a location that enjoys full sun and remember to water often. Keep in mind when planting that California Greystripe is thought of as half hardy, so it will require protection in frosts and low temperatures. Use USDA Hardiness Zone 4 - 9 as your guideline for the appropriate climate for this plant. Planting California Greystripe 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.

Growing California Greystripe from seed

Sow at a depth of approx. 0.49 inches (1.25 cm) and aim for a distance of at least 4.68 inches (12.0 cm) between Sunflower plants. Soil temperature should be kept higher than 13°C / 55°F to ensure good germination.

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

Transplanting California Greystripe

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

Harvesting California Greystripe

Sunflower California Greystripe Etymology

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


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