Blue Glitter Sea Holly

Blue Glitter is an upright sea holly selection with branching silver-blue stems and vivid blue flower heads. It was developed for cut-flower production, and its stiff stems and lasting color also bring strong vertical texture to perennial borders. [Fleuroselect](https://www.fleuroselect.com/trials-and-awards/awarded-varieties/variety/blue-glitter/de_DE) reports a garden height near 80 cm; [Select Seeds](https://www.selectseeds.com/products/sea-holly-blue-glitter-seeds) lists a 2–3 foot height and 2.5 foot spread. ### Garden Use Place this long-stemmed perennial in a sunny border or cutting garden where its spiny flower heads can be seen and harvested. The flowers also dry well, and bees and butterflies visit them. Allow space for the upright stems to rise above neighboring plants. ### Growing Conditions Grow in full sun and well-drained soil, including lean or poor ground. Water less once established. Sources vary on mature dimensions, so the displayed height range combines the reported approximate ranges; the single metric points use directly reported cultivar measurements. The cited supplier lists USDA zones 5–9. ## Maintenance For fresh arrangements, cut stems before the flower heads fully open. Tidy remaining stems after flowering if desired.