Hollyhock Seeds

Hollyhock Seeds FAQs  

Take a look at some of the frequently asked questions we receive from those looking to buy Hollyhock Seeds in the UK. You can contact our Customer Service Team or browse our general FAQs for further advice.   

When to sow Hollyhock Seeds 

Hollyhock seeds can be sown in spring either indoors or directly outdoors where they are to grow. Seeds can also be sown later in the year, and many varieties will flower the following summer. Hollyhocks are typically grown as biennials or short-lived perennials.  

How to grow Hollyhocks from seed 

Sow hollyhock seeds in moist, well-drained seed compost and lightly cover them with a thin layer of compost. Keep the compost moist while seeds germinate and grow seedlings on in a bright position. Once established, plant outdoors in a sunny spot with fertile, well-drained soil. Hollyhocks can reach over 2m in height, so taller varieties may benefit from staking in exposed locations. 

How long does it take for Hollyhocks to flower? 

Most hollyhocks produce a rosette of leaves in their first year and flower in their second year. Their tall flower spikes bloom throughout summer, creating impressive displays that add height and colour to borders.  

Why grow Hollyhocks from seed? 

Growing hollyhocks from seed is an economical way to create dramatic cottage-garden displays. Their towering stems are covered in large flowers that attract bees and other pollinators, making them an excellent choice for wildlife-friendly gardens. Hollyhocks also self-seed readily, helping displays return year after year.  

Where can you grow Hollyhocks? 

Hollyhocks are ideal for cottage gardens, mixed borders, wall-side planting and traditional garden schemes. They thrive in full sun and well-drained soil and are particularly effective when planted at the back of borders, where their height provides a striking backdrop for other flowering plants.  

Which Hollyhock variety should I choose? 

The best hollyhock variety depends on the style and colour scheme you want to create. Traditional single-flowered varieties are especially attractive to pollinators, while double-flowered forms provide a more dramatic, ruffled appearance. Hollyhocks are available in a wide range of colours, including white, pink, yellow, red, purple and near-black shades, making them perfect for both classic and contemporary garden designs.  

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