HT Alcea Rosea Hollyhock Summer Carnival seeds 0.5g

HT Hollyhock ‘Summer Carnival’ Seeds

Create a spectacular cottage garden display with HT Hollyhock ‘Summer Carnival’ (Alcea rosea). This impressive annual produces tall spikes of large, colourful blooms that flower throughout the summer, bringing height, colour and classic charm to borders and cutting gardens. Growing up to 140 cm, it makes a stunning focal point in sunny gardens while also attracting bees and other pollinators. The edible flowers can be used as a decorative garnish for salads, desserts and drinks.

Product Features

• Tall flower spikes with large, colourful blooms
• Excellent cut flower for fresh bouquets
• Perfect for cottage gardens and sunny borders
• Edible flowers for decorative culinary use
• Attractive to bees and other pollinators
• Flowers in its first year when grown as an annual

Plant Details

• Botanical Name: Alcea rosea
• Common Name: Hollyhock ‘Summer Carnival’
• Plant Type: Annual
• Height: Approximately 140 cm
• Position: Full Sun
• Contents: Approx. 0.5 g

Growing Information

When to Sow

• Indoors: March – April
• Outdoors (Seedbed): April – May

How to Sow

Sow seeds indoors in trays or pots filled with moist seed compost, covering lightly with 0.5–1 cm of compost. Alternatively, sow outdoors in a prepared seedbed once the soil has warmed. Keep the soil evenly moist during germination.

Planting Out

Transplant seedlings 5–6 weeks after sowing, once they are large enough to handle and all risk of frost has passed.

Flowering

Enjoy spectacular blooms from July to September, providing height and vibrant colour throughout the summer.

Growing Tips

• Plant in a sunny, sheltered location.
• Prefers fertile, well-drained soil enriched with organic matter.
• Water regularly while plants establish.
• Taller flower spikes may benefit from staking in windy areas.
• Remove faded flowers to encourage prolonged blooming.

Garden Uses

Hollyhock ‘Summer Carnival’ is ideal for cottage gardens, mixed borders, cutting gardens and wildlife-friendly planting. It looks stunning planted against fences, walls or at the back of borders, where its tall flower spikes create dramatic vertical interest.

Why You’ll Love It

HT Hollyhock ‘Summer Carnival’ brings classic cottage garden beauty with impressive height and colourful blooms. Easy to grow and perfect for cutting, it provides months of elegant flowers while attracting pollinators and adding vertical structure to the garden.