Cirsium arvense
Field thistle, creeping thistle: despite its name, it is not a true thistle but a plume thistle, recognizable by its softly scented lilac flowers and silky tufts that float away in the wind. Long considered a mere weed, it is now recognized by naturalists as one of the most nourishing plants for wildlife.
Characteristics:
-
Spreading perennial: horizontal rhizomes and deep vertical roots allow it to colonize an area quickly.
-
Summer flowering: fragrant lilac flower heads, from July to September.
-
Very easy: it adapts to practically all soil types and requires no care.
Precautions:
-
Potentially invasive plant: its spreading rhizomes and self-seeding allow it to spread quickly and become difficult to contain. Reserve it for a defined area of the garden dedicated to biodiversity, away from the vegetable garden, and mow before the seeds disperse if you wish to control its spread.
- Its leaves and stems bear spines: handle it with gloves.
Sowing advice:
-
Exposure: sunny.
-
Soil: truly all types, even poor, clay or compacted soils — it is one of the least demanding plants there is. No fertilization or soil amendment.
-
Method: sow on the surface in spring or autumn, barely covering the seeds, in the area you have set aside for it. No soaking or stratification is necessary. See how to sow your seeds.
Care advice:
- No maintenance necessary — only monitor its spread. An underground barrier can contain its rhizomes.
Benefits for biodiversity:
- It is the host plant of the Painted Lady caterpillar, the migratory butterfly that crosses the Mediterranean every year, as well as a multitude of beetles, including ladybirds and leaf beetles.
- Its tufted seeds are a major food reserve for seed-eating birds: the European goldfinch, which owes its name to this plant, depends heavily on it, as do linnets and siskins.
- Its flowers are highly sought after by bees, bumblebees and butterflies, which find abundant pollen and nectar there during a key season. See the basics of permaculture.
Use:
- Reserve it for wild areas, flower-rich fallows, informal hedges and biodiversity corners, where it fully serves as a pantry for wildlife.
Harvesting your own seeds:
The seeds, topped with a feathery tuft, take flight as soon as they mature: cut the flower heads as soon as they begin to open and leave them to dry in a paper bag, which will collect everything. See storing your seeds.
Commitment to Quality: at SemiSauvage - Permaculture, we grow and select our seeds with respect for all living things as our guiding principle. Based near the Auvergne Volcanoes, we choose open-pollinated, non-hybrid varieties, tested for their germination rate, carefully sorted and packaged, with no chemical treatment. Our conviction: to give gardeners back the ability to sow, year after year, seeds that truly belong to them.
Offer butterflies and birds a true pantry with these field thistle seeds.
