Rudbeckia Goldsturm - 1 Packet (100 Seeds)
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This guide is for gardeners looking to add vibrant, long-lasting color to their landscapes. The Rudbeckia Goldsturm (Black-Eyed Susan) offers stunning butter-yellow flowers from May to October, providing a continuous, cheerful display. A caveat is that germination may require specific temperature conditions and sometimes pre-chilling.
All features
| Model Part Number | 26531 |
|---|---|
| Brand | Thompson & Morgan |
Extended Product Information
FAQs
When is the best time to sow Rudbeckia Goldsturm seeds?
The recommended sowing time is from February to July. For best germination, maintain a temperature of 18-20°C.
What are the mature dimensions of Rudbeckia Goldsturm?
When fully established, Rudbeckia Goldsturm typically reaches a height of up to 60cm (23.6 inches) and a spread of up to 45cm (17.7 inches).
Can Rudbeckia Goldsturm grow in partial shade?
Yes, Rudbeckia Goldsturm can tolerate sun or semi-shade conditions, though it performs best in full sun.
How long do the flowers last?
The gorgeous golden flowers provide a bright display from May through October, offering a long blooming season.
Is Rudbeckia Goldsturm a perennial?
Yes, Rudbeckia Goldsturm is a hardy perennial, meaning it will return and bloom year after year.
What should I do if my seeds don't sprout?
If germination is unsuccessful after 4 weeks, try placing the sown seeds in the refrigerator for 6-13 weeks (pre-chilling) before sowing again.
How many seeds are included in a packet?
Each packet contains approximately 100 seeds of Rudbeckia Goldsturm.
Troubleshooting
Seeds are not germinating
Ensure consistent temperature of 18-20°C. If germination fails after 4 weeks, try pre-chilling the seeds for 6-13 weeks in a refrigerator before sowing again.
Plants are leggy or producing few flowers
Ensure the plants are receiving adequate sunlight. Amend the soil with compost to improve fertility. Deadhead spent blooms to encourage more flowering.
Plants appear weak or diseased
Check for proper drainage; avoid overwatering. Ensure good air circulation around plants. Remove any affected foliage promptly.
Pros and Cons
Pros
- Provides color for a long blooming season (May-October).
- Attractive, large golden flowers create a striking visual impact.
- Hardy perennial nature ensures reliability and repeat blooms.
- Relatively easy to grow with basic gardening care.
- Attracts pollinators with its vibrant blooms.
Cons
- Germination can be slow or require specific conditions (65-70°F / 18-20°C).
- May require pre-chilling if initial germination fails.
- Images are for guidance only; actual results may vary based on growing conditions.
- Seasonal changes may affect plant appearance (e.g., deciduous nature).
Setup, Compatibility & Care
Sowing:
- Sow seeds in trays or pots filled with good quality, well-drained seed compost.
- Maintain an optimal temperature of 65-70°F (18-20°C) using a propagator or warm location.
- Lightly cover the seeds with compost; do not sow too deeply.
Germination & Planting:
- If germination does not occur within 4 weeks, pre-chill the sown seeds for 6-13 weeks in a refrigerator.
- Once seedlings are large enough to handle, transplant them into individual pots.
- Plant in their final position in ordinary garden soil, ensuring full sun or semi-shade.
Care:
- Position: Full sun, sun, or semi-shade.
- Soil: Ordinary garden soil, well-drained.
- Watering: Water regularly, especially during dry periods, ensuring the soil does not become waterlogged.
- Maintenance: Deadhead spent flowers to encourage further blooming. Cut back the plant in late autumn or early spring.