Grey Stripe Sunflower (Helianthus annuus)
PriceFrom $4.50
Excluding Sales Tax
Helianthus annuus 'Mammoth' is a garden cultivar that lives up to its name at 12' tall and flower heads up to 14" wide. The common name is Grey Stripe Sunflower. It is a summer flowering, native annual growing in full sun and prefers dry to medium soil moisture sites. Prices listed are based on pure live seed weight, not bulk weight.
Species Details
| Common Name (Botanical Name) | Grey Stripe Sunflower (Helianthus annuus) |
| Alternatative Common Names |
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| Botanical Synonyms |
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| Bloom Season | Summer |
| Group | Wildflowers/Forbs |
| Bloom Color | Yellow |
| Duration | Annual |
| Soil moisture | Dry (Xeric);Medium (Mesic) |
| Soil texture | |
| Sun Exposure | Full Sun |
| Status | Native |
| Wetland status | FAC;FACU |
| pH | Acidic;Neutral |
| pH Values | 5.5/7.8 |
| Average height | 6+ ft |
| USDA Zones | |
| RNS Region | 1;2;3;4;5;6;7 |
| Planting rate/Acre | Not Recommended |
| Seeds Per Lb. | 47000 |
| Seeds Per Oz | 2938 |
| Seeds Per Packet | 150 |
| Product Benefits | Aesthetic Value;Deer Resistant;Wildlife Food;Nectar Source; |