Veronica diosmifolia
Veronica diosmifolia · Plantaginaceae
📷 Flocci Nivis · CC BY 4.0
The gardener's calendar
Ideal time to plant veronica diosmifolia: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Scientific name
- Veronica diosmifolia
- Family
- Plantaginaceae
- Type
- Perennial herb
- Adult height
- 50 cm
- Flowering
- June to August
- Exposure
- Full sun
- Foliage
- Evergreen
- Hardiness
- Good (hardy in temperate climate)
✓ Taxonomy verifiedSource: AI estimate · hardiness: reliability medium.
Expert tips
The key tip
Veronica diosmifolia loves full sun and requires minimal maintenance. Water moderately: it thrives in fresh soil without excess.
The common mistake
Watering too frequently: roots rot in waterlogged soil, stems yellow and the plant can decline rapidly.
The pro's trick
In May, before stems get too long, pinch off the first 5 centimetres of young shoots: it will fill out naturally and flower more densely.
Care
Exposure
Diosma-leaved speedwell loves sunny spots for generous flowering and compact growth. It tolerates light afternoon shade, but prefers to enjoy 6 to 8 hours of direct sun daily. Lack of light weakens the plant and reduces flower production.
Watering
Keep the soil moist but well-drained, especially during spring growth and flowering. Water regularly without allowing water to stagnate to prevent root rot. Once established, the plant tolerates drought better; reduce watering in winter.
Soil
Prefer well-drained, fairly light and even gravelly soil. Speedwell accepts poor to moderately fertile soils. Adding sand or gravel at planting improves drainage, particularly in humid regions.
Pruning and maintenance
Prune lightly after flowering to cut back stems by a third and encourage bushy growth. Remove spent flowers to extend the flowering period. In late winter, heavier pruning can rejuvenate aging plants.
Fertilizing
Moderate spring feeding is sufficient; speedwell does not require regular fertilization. Balanced fertilizer (or potassium-rich) will promote beautiful flowering. Avoid excess nitrogen which unbalances the plant.
Diseases and pests
Generally problem-free, this speedwell can be affected by powdery mildew in overly humid conditions. Ensure good air circulation and avoid wetting the foliage. Slug damage is very rare on this species.
Did you know?
Speedwell owes its scientific name Veronica to the Christian legend of Saint Veronica who supposedly wiped the face of Christ. Veronica diosmifolia, with its small finely cut leaves reminiscent of diosma (a South African shrub), won over European gardens as a prized ornamental perennial among 19th-century English horticulturists for its extended summer flowering and robustness.
Where to buy it
Plant in spring or early autumn, avoiding spells of intense heat. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, April, May, September.
Add this plant to my garden →Plants from the same family
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- Spike speedwellVeronica spicata
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- Coral plantRusselia equisetiformis
- Bunchleaf penstemonPenstemon heterophyllus
Tips generated and checked by Viridia — adapt them to your local climate.