Thompson & Morgan Zinnia Fire-works Mix - 120 Seeds
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This guide is for gardeners seeking vibrant, long-lasting color in their beds, borders, or for cutting bouquets. The Thompson & Morgan Zinnia Fire-works Mix offers impressively large double flowers in a variety of vibrant hues, providing a free-flowering display. A caveat for new gardeners is that these are half-hardy annuals, requiring specific sowing times for optimal growth.
All features
| Model Part Number | 138708 |
|---|---|
| Brand | Thompson & Morgan |
Extended Product Information
FAQs
When is the best time to sow Zinnia Fire-works Mix seeds?
Sow seeds indoors from March to April or outdoors from April to May, after the risk of frost has passed.
What is the mature height of these Zinnia plants?
The plants reach a height of approximately 75cm (2 ½').
Can I grow these zinnias in pots?
Yes, they can be grown in pots, provided they have good drainage and receive plenty of sunlight.
How long do the flowers last once cut?
Zinnias generally last for 7-10 days in a vase when cut at the right stage and cared for properly.
Are these zinnias suitable for cutting?
Yes, they are excellent for cutting and making bouquets due to their large flowers and long vase life.
What does 'half-hardy annual' mean?
It means the plant will not survive frost but can be grown as an annual. It often benefits from starting indoors to get a head start.
How much sun do Zinnia Fire-works Mix need?
They are sun-loving plants and require a position that receives full sun for the best performance and flowering.
Troubleshooting
Seeds not germinating
Ensure seeds are sown at the correct depth, kept consistently moist, and at an appropriate temperature (18-21°C). Check the age of the seed packet.
Plants are leggy and weak
This often indicates insufficient light during early growth. Ensure seedlings receive plenty of light. Harden off plants gradually before transplanting outdoors.
Flowers are small or few
Ensure plants are in a sunny location and receive adequate water and nutrients. Regular deadheading encourages more blooms.
Fungal diseases (e.g., powdery mildew)
Improve air circulation around plants by spacing them appropriately. Water at the base of the plant, avoiding wetting the foliage. Remove affected leaves promptly.
Pros and Cons
Pros
- Produces large, attractive double flowers.
- Offers a wide array of vibrant colors.
- Provides a long flowering season from July to September.
- Suitable for multiple garden uses, including cutting.
- Easy to grow from seed with clear instructions.
Cons
- Requires specific sowing times (indoors March-April, outdoors April-May).
- Classified as half-hardy, meaning they need protection from frost.
- Best suited for sunny locations, limiting placement options.
Setup, Compatibility & Care
Sowing Seeds Indoors: Sow seeds from March to April in pots or trays filled with seed compost. Cover lightly with compost or vermiculite. Keep moist and warm (around 18-21°C). Transplant seedlings into individual pots when large enough to handle and grow them on in cooler conditions. Harden off plants before planting outdoors after the risk of frost has passed.
Sowing Seeds Outdoors: Sow seeds directly into well-drained soil from April to May, after the last frost. Thin seedlings to the strongest, spacing them about 30-45cm apart.
Location: Plant in a sunny, sheltered position. Zinnias thrive in full sun.
Soil: Prefers well-drained, fertile soil. Improve heavy soil with compost.
Watering: Water regularly, especially during dry spells. Avoid waterlogging.
Deadheading: Regularly remove spent flowers to encourage further blooms and prolong the flowering season.
Care: As half-hardy annuals, protect young plants from frost. Support taller plants if necessary.