Zinnia 'Giant Double Mix' Seeds
£3.19
notes
A dazzling blend of bold colours and big, fully double blooms, Giant Double Mixed makes a spectacular summer display. These classic annuals produce large, dahlia‑like flowers on sturdy, upright stems from mid‑summer into early autumn, perfect for borders, containers and cut‑flower gardens.
Dimensions
- Approx. 100 seeds
- 75cm eventual height
Features
notes
A dazzling blend of bold colours and big, fully double blooms, Giant Double Mixed makes a spectacular summer display. These classic annuals produce large, dahlia‑like flowers on sturdy, upright stems from mid‑summer into early autumn, perfect for borders, containers and cut‑flower gardens.
Insights
Johnsons Seeds, part of the historic Mr Fothergill brand with over two centuries of horticultural heritage, offers gardeners vibrant, reliable flower seeds selected for vigorous germination and strong garden performance. Their range is chosen to inspire colour, structure and repeat blooming in British gardens.
Details
- Sow: March – May indoors; April – May direct outdoors (once frost risk has passed)
- Flowers: July – October
- Half hardy annual
Planting
- Soil: Light, fertile and well‑drained soil rich in organic matter
- Aspect: Full sun
- Indoors: Sow seeds about 1 cm deep in fine, moist compost in trays or pots, keeping warm and lightly moist.
- Outdoors: Direct sow after the last frost around April – May.
- Spacing: Thin or transplant to about 30 cm (12″) apart to allow airflow and robust growth.
Care
Zinnias appreciate regular watering to keep soil evenly moist, avoiding waterlogging, and benefit from deadheading spent blooms to prolong the flowering season. Taller plants can be lightly staked if exposed to strong winds or heavy rain.
Glossary