How to Grow Bidens
Bidens ferulifolia
When to Start
Sow indoors 6 weeks before last frost, or direct sow outdoors after frost risk has passed and soil reaches 12°C.
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Growth Stages
Approximate days from start
Care Essentials
- Balanced liquid feed weekly during peak flowering. Vigorous grower that benefits from regular nutrition.
- Cheerful trailing plant smothered in golden-yellow daisy flowers from early summer to frost. Extremely vigorous and easy to grow. Self-cleaning — no deadheading needed. Excellent bee plant.
Companion Planting
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Growing Conditions
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- Sow indoors
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- Transplant out
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- First harvest
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Spacing & Planting
| Plant spacing | 25 cm |
| Row spacing | 30 cm |
| Mature height | 30 cm |
| Mature spread | 40 cm |
For trailing varieties in hanging baskets and containers. Vigorous spreader that fills gaps quickly.
Care Guide
- Feeding
- Balanced liquid feed weekly during peak flowering. Vigorous grower that benefits from regular nutrition.
- Watch for
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- Slugs on young plants
- Generally pest-free
- Can become invasive in mild areas
Pests & Diseases
Pest Slugs and Snails
Identification: Irregular holes in young leaves, slime trails, seedlings eaten overnight
- Beer traps
- Copper tape around containers
- Evening hand-picking
- Ferric phosphate pellets (wildlife-safe)
Disease Powdery Mildew Erysiphe spp.
Symptoms: White powdery coating on leaves, especially in late summer. Leaves may yellow and drop.
Treatment: Remove badly affected leaves. Improve air circulation.
Prevention: Avoid overcrowding. Water at the base, not overhead. Ensure good airflow.
Growing Conditions
| Min. soil temperature | 12°C |
| Base growth temperature | 10°C |
| Min. daylength to start | 11h |
| Photoperiod sensitivity | day neutral |
Frequently Asked Questions
- How far apart should I plant Bidens?
- Plant Bidens 25cm apart with 30cm between rows.
- When does Bidens flower?
- Bidens typically flowers approximately 40 days after transplanting.
- Is Bidens frost hardy?
- Bidens is classified as Half Hardy.
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