How to Grow Prostrate Speedwell
Prostrate Speedwell
Veronica prostrata
flowerProstrate speedwell is a low-growing, mat-forming perennial ground cover prized for its dense carpets of fine foliage and bright blue flowers in spring. This hardy, drought-tolerant plant spreads horizontally to create excellent coverage for rock gardens, alpine troughs, and border edging. It's an attractive alternative to grass in difficult-to-mow areas.
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Example Prostrate Speedwell timeline · Pittsburgh, PA (Zone 6b)
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Plant Prostrate 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 Prostrate Speedwell blooms
Mid-to-late summerBefore the first fall frost (≈ Nov 8)
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-7, with success possible into zone 8 in cooler microclimates
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Get my Prostrate Speedwell timeline →Growth Stages
Germination & Seedling
2-3 weeksTiny seedlings emerge with fine cotyledons; growth is initially slow and low to the ground
Keep soil consistently moist but not waterlogged. Provide bright light. Thin seedlings to prevent damping off. Maintain cool temperatures (60-70°F).
Vegetative Growth & Establishment
4-8 weeksPlant develops creeping stems and dense foliage mats; leaves are small and linear. Root system expands horizontally and deepens.
Water during dry spells but allow soil to dry slightly between waterings. Do not fertilize heavily; low fertility encourages compact growth. Mulch lightly to preserve moisture.
Flowering
4-6 weeks, spring (April-June depending on zone)Dense clusters of tiny four-petaled bright blue flowers (sometimes pink or white cultivars) appear along creeping stems. Flowers held just above the foliage mat.
Deadhead spent flowers to encourage extended bloom and prevent excessive self-seeding. Reduce watering slightly if soil stays moist. Enjoy blooms for 4-6 weeks in spring.
Post-Flowering & Summer Growth
6-10 weeksFlowering slows as temperatures warm; plant focuses on foliage expansion and stem elongation. Mats continue to spread and thicken.
Minimize fertilizer; excess nitrogen weakens hardiness. Water during extended dry periods. Avoid overhead watering to reduce disease risk. Trim back any leggy growth.
Fall & Dormancy
16+ weeks, until springFoliage remains attractive but may take on bronze or reddish tones in cool weather. Plant enters dormancy as temperatures drop.
Reduce watering significantly in fall and winter. Do not cut back hard; allow evergreen foliage to persist. No fertilizer needed. Ensure drainage to prevent winter rot.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray with water to dislodge; use insecticidal soap or neem oil if severe. Ensure adequate air circulation.
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Improve air circulation, reduce overhead watering, remove affected foliage. Spray with sulfur or fungicide if necessary.
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Prevent with excellent drainage and no overwatering. Remove affected plants immediately. Improve soil drainage with gravel and sand.
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and
Hand-pick in early morning. Use copper barriers or diatomaceous earth. Reduce moisture around plants.
Uses
Herbal tea (traditional use)
CulinaryVeronica species have been steeped as herbal infusions in European folk traditions, though culinary use is less common today than in historical times. The aerial parts were traditionally brewed for mild digestive properties. [source]
Traditional herbal remedy
MedicinalVeronica species have been used in traditional European herbalism for respiratory support and digestive health. Modern clinical evidence is limited, but the plant contains beneficial compounds like saponins and glycosides. [source]
Low-maintenance ground cover
HouseholdProstrate speedwell's dense mat and drought tolerance make it ideal for reducing mowing and maintenance in ornamental landscapes, particularly in rock gardens and between paving stones. [source]
Pollinator and beneficial insect support
WildlifeThe bright blue spring flowers attract bees, butterflies, and other pollinators. The dense foliage provides shelter for beneficial insects and ground-dwelling wildlife. [source]
Garden design and xeriscape landscaping
CraftUsed extensively in alpine troughs, xeriscaping, rock gardens, and as ornamental edging. Its fine texture and spring color make it a designer favorite for difficult growing conditions. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Prostrate speedwell is primarily ornamental and not typically harvested. However, the entire mat can be divided in spring or fall for propagation. Cut stems root readily in moist sand or perlite. Divide established plants every 3-4 years to maintain vigor and prevent bare patches.
Fun Facts
- 🌱 Veronica species are named after Saint Veronica, who wiped Jesus' face on the way to the cross—the flower's shape supposedly resembles a face with tears.
- 🌱 Prostrate speedwell is sometimes called 'bird's eye' speedwell due to its small, bright blue flowers that resemble tiny eyes scattered across the foliage.
- 🌱 This plant is extremely popular in British alpine gardens and has won the Royal Horticultural Society Award of Garden Merit, indicating outstanding garden performance and reliability.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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