Long-leaved Speedwell
Veronica longifolia
Not currently listed at our partner nurseries.
Essentials
At a Glance
Plant Type
Perennial
Height
42 inches
Width
18 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7, 8
Water
Consistently moist
Humidity
Average
Lifespan
Perennial
Native To
Europe
Toxicity
Non-toxic to humans and pets
The Story
Plant Bio
Veronica longifolia, also known as long-leaved speedwell, is a hardy perennial known for its tall spikes of blue flowers. This species is noted for its long flowering period and resistance to drought once established.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
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Planting
How to Grow
- Tuck seeds into moist soil in early spring for best germination.
- Water regularly to keep soil evenly moist during growing season.
- Transplant seedlings when they are 3 inches tall to a sunny spot.
- Fertilize monthly with a balanced fertilizer for lush growth.
- Prune lightly after flowering to maintain shape and encourage new blooms.
- Mulch around plants to retain moisture and suppress weeds.
Pro Tip
Use well-draining soil and full sun for vibrant, healthy Veronica longifolia growth.
Keep It Thriving
Care Guide
Do
- Water consistently, especially during dry spells 🌱
- Deadhead spent flowers to promote more blooms
- Provide full sun for optimal flowering
- Apply organic compost annually for healthy soil
- Mulch to conserve moisture and regulate soil temperature
Don't
- Overwater, which can cause root rot ❌
- Allow soil to dry out completely between watering
- Plant in heavy, poorly-drained clay soil
- Neglect pruning after flowering
- Use chemical fertilizers excessively
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Divide | ||||||||||||
| Spring Cleanup | ||||||||||||
| Stake |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Long-leaved Speedwell questions
What zones can Long-leaved Speedwell grow in?
Long-leaved Speedwell is hardy in USDA Zones 4–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Long-leaved Speedwell deer resistant?
Yes — Long-leaved Speedwell is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Long-leaved Speedwell bloom?
Long-leaved Speedwell typically blooms in mid-summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Long-leaved Speedwell need full sun?
Long-leaved Speedwell does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
More Veronica to compare
Moody Blues Sky Blue Veronica
Veronica spicata 'Moody Blues Sky Blue'
Royal Candles Speedwell
Veronica spicata 'Royal Candles'
Lavender Lightsaber Speedwell
Veronica spicata 'Lavender Lightsaber'
Royal Candles Spike Speedwell
Veronica spicata 'Glory'
Purple Speedwell
Veronica spicata 'Purpleicious'
Longifolia Veronica Eveline
Veronica longifolia 'Eveline'
Keep exploring
Explore the genus
Collections featuring this plant
Hardy in your zone?
Grow Long-leaved Speedwell with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.
