Thistle type weeds are every gardener’s bane. From their prickly stems to their deep tap roots, thistle is one of the most annoying weeds to eradicate. What’s more, some species of these prolific self-seeders are invasive and can quickly overtake an area. Which can leave the unwary gardener in a thorny situation. Facts About Thistle Thistle is an adaptive plant which can grow almost anywhere from roadsides and pastures to flowerbeds and lawns. Depending upon the species, thistle can be biennials which form low-growing rosettes their first year. After flowering their second year, biennials die. Other types of thistles are perennials. They grow and spread for many years. Worldwide, approximately 200 species of thistle have been identified, many of which are native to North America. While gardeners might not appreciate these wildflowers in their well-manicured landscape, native species are a key part of the ecosystem. They provide food to birds, […]
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