How to Grow Spike Speedwell
Spike Speedwell
Veronica spicata
flowerSpike speedwell is a hardy perennial flower known for its dense spikes of small, vibrant flowers in blue, purple, pink, or white. It's a low-maintenance garden staple that attracts pollinators and provides reliable summer color. The plant features narrow, lance-shaped foliage and compact, upright growth.
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Example Spike Speedwell timeline · Pittsburgh, PA (Zone 6b)
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Plant Spike Speedwell
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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First Spike Speedwell blooms
Around Jun 16≈ 60 days after planting
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-8, with best performance in cooler climates
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Seedling
2-3 weeksTiny green seedlings with first true leaves appearing; very delicate
Keep soil consistently moist but not wet. Provide bright light. Thin seedlings to 2-3 inches apart when true leaves appear.
Vegetative/Establishment
4-8 weeksPlant develops rosette of narrow leaves; compact, bushy growth with no flowers yet
Water regularly to establish deep roots. Pinch stem tips in early growth to encourage bushier form. Apply balanced fertilizer monthly.
Budding
2-3 weeksDense flower buds form at stem tips, still tightly packed, foliage appears full and healthy
Reduce nitrogen fertilizer to encourage flowering. Continue regular watering. Ensure good air circulation around plants.
Flowering
6-10 weeksTall spikes of small flowers bloom progressively from bottom to top; flowers small, densely packed on spike
Deadhead spent flowers to extend blooming season. Water during dry spells. Stake taller varieties if needed in windy areas.
Post-Bloom/Dormancy
Variable; until spring regrowthFlowers fade, seed heads form; foliage may yellow in late summer. Plant dies back after frost in cold climates.
Cut back stems to 2-3 inches after frost or in early spring. In mild zones, allow some seed head to persist for winter interest and wildlife food.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Improve air circulation, avoid overhead watering, remove infected leaves. Spray with fungicide if severe; neem oil or sulfur are organic options.
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Ensure well-draining soil, avoid overwatering, provide good air circulation. Remove affected plants.
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Increase humidity with misting, spray with water to dislodge. Use insecticidal soap or neem oil if infestation is heavy.
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and
Remove by hand, create barriers with copper tape or diatomaceous earth. Beer traps or slug baits are effective.
Uses
Herbal Tea & Infusions
CulinarySpike speedwell can be dried and brewed into a light herbal tea with mild, slightly astringent properties. Traditionally used in European herbal medicine as a tea for respiratory support. [source]
Traditional Herbal Remedy
MedicinalHistorically used in European herbalism to support respiratory health, throat comfort, and general wellness. The plant contains compounds with potential anti-inflammatory and antimicrobial properties. [source]
Cut Flower & Floral Arrangements
HouseholdExcellent tall, narrow flower spikes for fresh bouquets and arrangements, providing vertical interest and long vase life. Popular in English gardens and cottage-style floral design. [source]
Pollinator Garden Plant
WildlifeAttracts bees, butterflies, and other beneficial pollinators throughout summer. Provides essential nectar and pollen for pollinator populations in the garden. [source]
Dried Flowers for Craft & Decoration
CraftFlowers dry well and retain color, making them ideal for dried flower arrangements, wreaths, and other craft projects. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Spike speedwell is grown for ornamental flowers rather than harvest. For cut flowers, pick spikes when the bottom third to half has opened; they will continue opening in a vase. Deadhead spent flowers throughout the season to promote continued blooming. Cut back entire plant to 2-3 inches in spring (cold climates) or after frost.
Fun Facts
- 🌱 Spike speedwell's name 'Veronica' comes from Latin; the genus contains over 450 species worldwide, many used historically as cure-alls in European folklore.
- 🌱 The plant is sometimes called 'Culver's Root' relative (different plant) and has been used in herbal traditions across Europe, Asia, and North America for centuries.
- 🌱 Spike speedwell is exceptionally drought-tolerant once established and can thrive in poor soils, making it perfect for xeriscaping and low-maintenance gardens.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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