Phlox Seeds

Phlox seeds (Phlox drummondii) develop refined, sculptural plants adorned with velvety, painterly blooms in deep, romantic shades. Their soft texture and compact form bring a curated, designer feel to modern borders and container displays. Resilient, long‑flowering and beautifully proportioned, phlox provides exceptional ornamental value suited to high‑end summer styling.

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Phlox Seeds FAQs 

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

When to sow Phlox Seeds 

Phlox seeds are typically sown indoors from late winter to early spring, or outdoors in spring once conditions are suitable. Early sowing gives plants plenty of time to establish and produce colourful blooms during the summer months. 

How to grow Phlox from seed 

Sow phlox seeds in moist seed compost and lightly cover them with a thin layer of compost. Keep the compost moist and place containers in a bright location. Once seedlings are large enough to handle, transplant them into individual pots and continue growing them on before hardening off and planting outside. Phlox prefers fertile, well-drained soil and a sunny position, although some varieties will tolerate light shade. 

How long does it take for Phlox to flower? 

Annual phlox varieties typically flower in their first growing season and provide a long-lasting display throughout summer. Perennial varieties may take longer to establish but reward gardeners with colourful blooms year after year. Regular deadheading can help encourage a longer flowering period. 

Why grow Phlox from seed? 

Growing phlox from seed is an economical way to fill borders, containers and cottage gardens with masses of colourful flowers. Phlox is valued for its long flowering season, sweet fragrance and ability to attract bees, butterflies and other pollinating insects to the garden. 

Where can you grow Phlox? 

Phlox is a versatile plant that can be grown in borders, cottage gardens, wildlife gardens, raised beds and patio containers. Most varieties thrive in a sunny position with fertile, moisture-retentive but well-drained soil. Their colourful blooms combine beautifully with other summer-flowering plants. 

Which Phlox variety should I choose? 

The best phlox variety depends on the effect you want to create. Annual phlox is ideal for vibrant summer bedding displays and containers, while perennial phlox adds height and long-lasting colour to mixed borders. Flowers are available in shades of white, pink, red, purple and bicolours, allowing you to create displays to suit any garden style. 

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