Vlasleeuwenbek

Linaria purpurea

Engels: Purple toadflax

perennialPlantaginaceae

Vlasleeuwenbek (Linaria purpurea) is a perennial from the Plantaginaceae family that grows up to 90cm tall. This plant thrives in full sun to partial shade and requires low maintenance. Blooms in early summer and summer and late summer with purple flowers and attracts bees and butterflies.

Hoogte

60–90 cm

Breedte

30–45 cm

Zonligging

full sun, partial shade

Waterbehoefte

moderate

Grondsoort

loam, sandy soil, chalky soil

Onderhoud

low maintenance

Bloeitijd

early summer, summer, late summer

Bloemkleuren

purple

Ecologische waarde

Trekt bijen aan

🦋 Trekt vlinders aan

Verzorgingskalender

Taak	Jan	Feb	Mrt	Apr	Mei	Jun	Jul	Aug	Sep	Okt	Nov	Dec
🌱Planten
✂️Snoeien
💧Bemesten

Care tips

Planting

Vlasleeuwenbek thrives in full sun or partial shade and tolerates a wide range of well-drained soils, including loam, sandy, and chalky types. It's particularly happy in lighter, free-draining ground and will struggle in heavy clay that stays wet. Choose a spot where it can self-seed freely if you want a naturalistic effect, or somewhere you can easily remove unwanted seedlings. Plant container-grown plants in March, April, or May for establishment before summer, or in September and October to take advantage of autumn rains and give roots time to settle before winter. Space plants 30 cm apart to allow for their upright, clumping habit and 30–45 cm spread at maturity. Prepare the soil by removing weeds and digging in a little garden compost or grit if drainage is poor, but avoid over-enriching the ground—vlasleeuwenbek performs best in moderately fertile conditions and can become floppy in overly rich soil. Dig a planting hole slightly larger than the root ball, set the plant at the same depth it sat in its pot, and firm the soil gently around the roots. Water thoroughly after planting to settle the soil and eliminate air pockets. A light mulch of gravel or grit around the base helps suppress weeds and improves drainage at the crown, which is especially useful on heavier soils. Avoid organic mulches that retain too much moisture. Newly planted vlasleeuwenbek needs regular watering for the first few weeks, but once established it is quite drought-tolerant and requires little fuss.

Pruning

Vlasleeuwenbek doesn't require heavy pruning, but a couple of well-timed cuts will keep plants tidy, encourage repeat flowering, and prevent excessive self-seeding. The main pruning window is after the first flush of flowers fades in mid to late summer, and again in March or October depending on your approach. Deadhead spent flower spikes regularly throughout the flowering season—from early summer through to late summer—by cutting stems back to just above a set of leaves. This encourages side shoots to develop and prolongs the display. If you want to allow some self-seeding (vlasleeuwenbek seeds freely and seedlings often appear in cracks and gravel), leave a few spikes to set seed in late summer, then cut them down once seeds have dispersed. In October, after flowering has finished, cut the whole plant back by about half to tidy it up before winter. Alternatively, leave the stems standing for structure and wildlife interest, then cut back hard to ground level in March as new growth begins to emerge at the base. March pruning also gives you a chance to remove any winter-damaged or dead stems. Use clean secateurs or garden shears for all cuts. Vlasleeuwenbek has wiry, upright stems that are easy to cut through. If clumps become congested or start to die out in the centre after a few years, lift and divide them in March or October, replanting only the vigorous outer sections.

Maintenance

Once established, vlasleeuwenbek is a low-maintenance perennial that tolerates dry spells well. Water newly planted specimens regularly during their first growing season, but mature plants need watering only during prolonged dry periods in summer. Overwatering or waterlogged soil can lead to root rot, so err on the side of dryness, especially in winter. Feed lightly in April or May with a balanced general-purpose fertiliser or a handful of blood, fish, and bone scattered around the base of the plant. Avoid high-nitrogen feeds, which promote soft, leafy growth at the expense of flowers and can make stems flop. Vlasleeuwenbek is adapted to lean soils and doesn't need heavy feeding—in fact, too much fertility reduces flowering and shortens the plant's lifespan. Vlasleeuwenbek is fully hardy in zones 5–9 and needs no winter protection in temperate Europe. It's evergreen or semi-evergreen in mild winters, though foliage may die back in colder spells. A gravel mulch around the crown helps prevent winter wet from rotting the base, particularly on heavier soils. Pests are rarely a problem. Slugs and snails may nibble young growth in spring, but established plants are generally left alone. Powdery mildew can occasionally appear on foliage in dry summers with poor air circulation; remove affected leaves and avoid overhead watering. Self-seeding can be prolific—weed out unwanted seedlings in spring or autumn to prevent overcrowding.