Delphinium Belladonna Mixed shows off striking flowers in rich shades of blue, turquoise, and white. These tall, sturdy plants (up to 120cm) are among the hardiest delphiniums you can grow, making them a reliable choice for adding bold colour and height to your garden. Early sowings often bloom in their first year, giving you plenty of beautiful flowers to enjoy.
🌸 Flowering: June to August, sometimes into September.
📏 Height: to 120cm
🌿Perennial
SOW & GROW: you can start sowing early in January or early February if you want flowers the same year. Otherwise, sow between March and May. Use seed trays or pots and cover the seeds lightly with compost or vermiculite. Keep them warm at about 15–18°C. They usually sprout pretty quickly—in 2–3 weeks.
Once they’ve grown a bit, pot them up and keep growing them on. If you started early, you can plant them out in summer. If you sowed later, keep them over winter in a cold frame—they’ll die back in winter but come back next year.
Delphiniums take a couple of years to reach their full size, so give them plenty of room—about 50cm apart. And watch out for slugs—they love these plants!
ENJOY: bring bold, dramatic colours to your garden with these tough, long-lasting plants — perfect for cutting too.
CAUTION - Harmful if eaten - keep out of reach of children and pets.
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