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Centaurea macrocephala (Yellow Hardhead, Giant Knapweed)

Type: Species | Edit History      Plant ID - 36963

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Scientific Classification Kingdom: Plantae Division: Magnoliophyta Class: Magnoliopsida Order: Asterales Family: Asteraceae Genus: Centaurea Species: Centaurea macrocephala

Common Names add Big Yellow Centaurea edit | delete Giant Knapweed edit | delete Big-Headed Knapweed edit | delete Yellow Hardhead edit | delete Plant Types edit Perennial   Zones / Hardiness edit 5a (to -15 F / -26 C) 5b (to -10 F / -23 C) 6a (to -5 F / -21 C) 6b (to 0 F / -18 C) 7a (to 5 F / -15 C) 7b (to 10 F / -12 C) 8a (to 15 F / -9 C) 8b (to 20 F / -7 C)   Height (Maximum) edit 2 to 5 feet (60 cm to 1 1/2 m)   Spread (Maximum) edit 2 to 5 feet (60 cm to 1 1/2 m)   Flowering Start edit July   Flowering End edit August   Leaf Colour edit Green - Medium   Leaf Shape edit Lanceolate   Have you a suggestion for a plant property that we are missing? Please let us know. Suitable For edit Border/Bed Cottage Garden Low Maintenance Garden   Sun Exposure edit Full Sun Partial Shade   Soil Types edit Well-drained Moist Loamy / Medium   Soil pH edit 6.5 - 6.9 (Very slightly acidic) 7.0 (Neutral) 7.1 - 7.5 (Very slightly alkaline)   Bloom Colour edit Yellow/Gold   Wildlife Value edit Bees Butterflies (nectar source)   Propagation Techniques edit Seed Division   Skill Level edit Beginner   Additional Short Notes add For longer notes please use the Opinions area below Ask a Question about this Plant on our Forums

Members who grow this plant also grow...   Eryngium alpinum (Sea Holly)   Ligularia dentata (Golden Groundsel, Summer Ragwort)   Paeonia lactiflora 'Duchesse de Nemours'   Hosta 'Abiqua Moonbeam' Contributors For This Plant Droopy (10087) Frank (2698) Kiasmum (123) Gardens Containing This Plant Droopy's Garden Link To This Plant Copy and paste one of the codes below to your favourite forum or website in order to link to this plant: Forum link Direct link HTML code

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