How to Grow Trailing Verbena
Glandularia × hybrida
Sow indoors in February or March at 18–24°C, barely covering seeds as they need darkness to germinate. Pot on when large enough and harden off before planting out after the last frost, typically late May. Choose a sunny spot or use in hanging baskets and containers. Pinch out tips when young to encourage spreading growth. Water containers regularly — they dry out fast in warm weather — and feed fortnightly with a balanced or high-potash liquid fertiliser. Deadhead spent flower clusters throughout summer to keep blooms coming until the first frost.
In your Leaftide garden - Hardiness
- Tender
- Season
- Warm Season
- Spacing
- 30 cm
- Height
- 25 cm
- Sow depth
- 0.3 cm
- Min. soil temperature
- 15°C+
- Start from
- Seed
- Light
- Full sun
- Water
- Moderate
When to Start
Start seeds indoors 10 weeks before your last frost date. Transplant outdoors once night temperatures stay above 10°C and soil has warmed to at least 15°C.
Don't know your frost date? Find it here →
Growth Stages
Approximate days from start
Care Essentials
- Fortnightly liquid feed from planting out. Use a balanced or high-potash fertiliser to sustain flowering.
- Trailing verbena excels in hanging baskets, window boxes, and as a ground cover edging. Keep moist in containers as they dry out quickly in warm weather.
Growing Conditions
- Min. soil temperature
- 15°C+
- Germination temperature
- 18–24°C
- Sow indoors
- —
- Transplant out
- —
- First harvest
- —
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Spacing & Planting
| Plant spacing | 30 cm |
| Row spacing | 35 cm |
| Sow depth | 0.3 cm |
| Mature height | 25 cm |
| Mature spread | 60 cm |
Growing Conditions
| Min. soil temperature | 15°C |
| Germination temperature | 18–24°C |
| Base growth temperature | 10°C |
| Min. daylength to start | 13h |
| Photoperiod sensitivity | day neutral |
Frequently Asked Questions
- How far apart should I plant Trailing Verbena?
- Plant Trailing Verbena 30cm apart with 35cm between rows.
- When does Trailing Verbena flower?
- Trailing Verbena typically flowers approximately 35 days after transplanting.
- Is Trailing Verbena frost hardy?
- Trailing Verbena is classified as Tender.