Hairy lousewort
Rhinanthus alectorolophus · Orobanchaceae
The gardener's calendar
Ideal time to plant hairy lousewort: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Family
- Orobanchaceae
- Form
- Annual herbaceous plant
- Flowering
- April to June
- Adult size
- 20 to 50 cm in height
- Hardiness
- Hardy, tolerates temperate winters
- Origin
- Continental and central Europe
- Foliage
- Deciduous, disappears after flowering
Care
Light exposure
Hairy rhinanthe prefers well-lit or partially shaded locations. It adapts well to natural meadows and open spaces. Good light encourages more abundant and regular flowering.
Soil and planting
This plant naturally grows in poor to moderately rich, well-drained soils that are rather calcareous or neutral. It thrives in unfertilized natural lawns and lean meadows. Avoid overly compact or waterlogged soils.
Watering
Hairy rhinanthe is a hardy plant requiring little water once established. Water moderately in spring if the soil becomes really dry. Under natural conditions, spring rains are generally sufficient for its development.
Fertilizer
This species appreciates poor soils and requires minimal fertility. Fertilizer application is unnecessary and even discouraged, as it promotes excessive vegetation at the expense of flowering. Let natural cycles take their course.
Pruning and maintenance
No pruning is necessary. Hairy rhinanthe is an annual that completes its natural cycle after flowering. You can let seeds disperse for spontaneous resowing the following year.
Diseases and pests
This hardy plant is rarely subject to diseases or pest attacks. The main danger remains winter stagnant moisture, which can rot young plants. Space out your sowings and ensure good soil drainage.
Did you know?
Hairy rhinanthe is known to be a semi-parasitic plant of grass roots: its roots embed slightly into neighboring grasses' roots to draw nutrients. This botanical peculiarity makes it an unusual ally for beekeepers, as it flowers early in spring when other plants' nectar is still lacking, offering a feast to hungry bees.
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
- Meadow cowwheatMelampyrum pratense
- Yellow rattleRhinanthus minor
- Pedicularis palustrisPedicularis palustris
- Melampyrum sylvaticumMelampyrum sylvaticum
- Red bartsiaOdontites vernus
- Marsh lousewortPedicularis sylvatica
Tips generated and checked by Viridia — adapt them to your local climate.