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With their spiny, globe-shaped flower heads, echinops bring arc
Try our pick of the most beautiful plants you can buy now
Colourful coneflowers provide a rousing finale to the summer season and their prominent shapes add drama to autumn plantings, says Sue Fisher
Seasonal ideas for your outdoor space
Plant with sunny hues to weave rhythm, softness and sparkle through your garden borders
Liz Zorab outlines her pick of the flowers with global garden appeal