Globe thistle, or Echinops, is a perennial with spherical blue or white flower heads that look like spiky balls on tall stems. The leaves are deeply lobed and prickly, and the plant grows upright, usually reaching 60 to 120 cm. In the Netherlands, the most common variety is Echinops ritro ‘Veitch’s Blue’, with metallic blue flowers.
Picking
Globe thistle is ready to pick when the flower heads are fully open, firm, and spherical, about 3 to 5 cm across. The florets should be fully extended but not wilting or browning. Use sharp scissors or pruners to cut the stem 10 to 15 cm below the flower head. Leave the lower stems and leaves on the plant so it can regrow.
The best time to pick is early morning or late afternoon, when the plant is less likely to wilt from heat. The main season runs from July to September, with the peak in August. Globe thistle is hardy and not sensitive to frost during the growing season, but it prefers well-drained soil and can struggle in heavy rain.
The stems are rigid, but the flower heads can bruise if handled roughly. Carry them carefully, and avoid stacking them too tightly.
At home
Shake the flower heads gently to remove insects, and rinse them briefly if needed—don’t soak them, as this can cause wilting. Wash them just before use, not before storing.
For short-term storage, place the stems in water like cut flowers. Keep them in a cool, dark place, and they’ll last 5 to 10 days. Change the water every 2 to 3 days to keep them fresh.
If you want to preserve them, drying is the best method. Hang the flower heads upside down in a dark, dry place for 2 to 3 weeks. Freezing isn’t recommended, as the texture degrades.
Cutting and arranging
Cut globe thistle when the flower heads are fully open but before the florets start to brown. Use sharp scissors to avoid crushing the stems. For the longest vase life, recut the stems at an angle and remove any lower leaves that would sit in the water. Change the water every 2 to 3 days.
Globe thistle adds height and texture to arrangements. It pairs well with grasses, daisies, or other thistle-like flowers. In Victorian flower language, it symbolises independence, nobility, and sharpness.
Safety
Globe thistle is mildly toxic to cats and dogs if ingested, causing gastrointestinal upset. The sap may also irritate sensitive skin, so handle it with care.