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Hardy perennial with large, rounded purple-blue flower heads on sturdy, almost black stems, produced from July to August. Sun
Ht: 30” (70cm) Sp: 2ft (60cm)
Sowing Instructions
Sow finely
and evenly. Cover thinly with compost, grit, vermiculite or perlite.
For best results seeds need temperatures of +22°C (72°F) or more. Keep moist.
Grow on individual seedlings in 3” pots.
Plant
out in well-drained position or in a very large pot.
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