Phlox grandiflora, Tall Series
Phlox grandiflora, Tall Series
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Phlox grandiflora – Tall Series
Approx. 250 seeds.
A beautifully reliable annual phlox series that produces tall, elegant stems topped with generous clusters of soft, pastel blooms. The colours are bright yet gentle, giving borders a fresh, early‑summer lift, and the taller habit makes this series perfect for adding height without heaviness. Flowering steadily from June onwards, it’s a superb choice for cottage gardens, cutting patches and any border that needs a long‑lasting splash of colour.
Easy to grow and wonderfully floriferous, Phlox grandiflora thrives in full sun and well‑drained soil, filling gaps quickly and flowering right through the warm months. The blooms are lightly scented, loved by pollinators and excellent for cutting — they hold well in the vase and blend beautifully with other soft summer flowers.
Key information
- Sow — February to May
- Germination — 7–21 days
- Flowering — June to September
- Height — to 45cm
- Lifecycle — Half‑hardy annual
- Position — Full sun
- Sowing method — Sow indoors; plant out once established
Want to know more about growing Phlox? Check out our growing guides.
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Growing Guides from Collie Flowers
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