Are dandelions good for my lawn?

They provide early food for pollinators and their deep roots help break up compacted soil.

How do I stop them from spreading?

Remove the flower heads before they turn into white seed puffs.

Guide botanique

Dandelion.

Taraxacum officinale

Prononciation tuh-RAK-suh-kum oh-fiss-ih-NAH-lee

Aussi appelée Blowball, Common Dandelion, Common Dandelion, Blow Ball, Faceclock, Dandelion, Eurasian dandelion, Faceclock

Taraxacum officinale — Photo de Karen Fry (CC BY) via gbif

The dandelion is a hardy perennial herb often considered a weed but cherished by pollinators. It features bright yellow flower heads that transform into iconic white seed puffs. You will find them growing in almost any sunny spot with decent soil.

En un coup d'œil

Care level: Easy
Plant type: Perennial herb
Light: Full sun
Indoor light: direct
Water: Every 3 to 7 days
Mature size: 30 cm
Growth rate: fast
Hardiness: USDA 3 to 9
Bloom time: Early spring to late autumn

Entretien

These plants thrive on neglect and require very little intervention to flourish. Keep an eye out for aphids or powdery mildew if the plant is stressed by drought. They are incredibly resilient and will return year after year from their taproot.

Watering: Water when the top inch of soil feels dry to the touch.
Feeding: They rarely need fertilizer, but a balanced feed in spring helps growth.
Pruning: Remove spent flower heads before they seed to prevent unwanted spread.
Repotting: Repot only if growing in containers to refresh the soil.
Soil: Well-draining, fertile soil
Soil pH: 6.0 to 7.0
Temperature: -20 to 35°C
Humidity: 30 to 70%
Drought tolerance: high
Lifespan: Perennial, typically 2 to 5 years.
Fragrance: light
Deer and rabbits: moderate

Signes qu'il faut rempoter

Roots growing out of the bottom drainage holes.
The plant stops producing new leaves.
Water runs straight through the pot without soaking in.

Sécurité

People: The plant is generally considered non-toxic, though the milky sap can cause mild skin irritation in sensitive individuals.
Pets: Dandelions are generally considered non-toxic to cats and dogs.
Children: The milky sap can be irritating if it gets into a child's eyes or mouth, so wash hands after handling.
Contact allergens: The milky latex sap may cause contact dermatitis in some people.
Airborne allergens: Pollen from the flowers can trigger seasonal allergies in sensitive individuals.
Edibility: Ensure you harvest from areas free of pesticides, herbicides, or pet waste.

Comment l'identifier

Bright yellow composite flower heads
Deeply toothed basal leaf rosettes
Hollow milky sap filled stems
White spherical seed heads
Deep fleshy taproot

Height: 0.05 to 0.4m
Spread: 0.1 to 0.3m
Leaves: green, deciduous
Flowers: yellow, 2 to 5cm

Problèmes courants

Powdery mildew — A white fungal growth appears on leaves during humid conditions.
Aphids — Small insects that cluster on stems and suck plant juices.

La cultiver

Propagation: seed
When to plant: spring, autumn
Overwintering: The plant goes dormant in winter, with the taproot remaining alive underground to sprout again in spring.
In containers: They grow well in pots, but use a deep container to accommodate the long taproot.

Seed Sowing

Collect seeds from the white fluffy heads once they are dry.
Scatter seeds on bare soil in early spring or autumn.
Press them lightly into the soil without burying them deep.
Keep the area moist until germination occurs.

Let them grow in patches to create a diverse meadow habitat that supports early season bees.

Bonnes associations

Clover — They both thrive in similar lawn conditions and support pollinators.
Plantain — This companion also tolerates compacted soil and foot traffic.

À éloigner de

Kentucky Bluegrass — Dandelions compete with lawn grasses for space and nutrients.

Espèces similaires

Catsear — It looks very similar but has branched stems and hairy leaves.
Hawkweed — These also have yellow flowers but typically grow on taller, hairy stems.

Science

Family: Asteraceae
Genus: Taraxacum
Order: Asterales
Class: Magnoliopsida
Native range: Eurasia, though now naturalized globally.
Conservation: This species is widespread and considered a common weed, so it is not of conservation concern.

It thrives in disturbed soils and open meadows, using its deep taproot to survive drought and competition.

Value to wildlife: early nectar source, pollen source
Pollinators: bees, butterflies, beetles
Uses: culinary greens, medicinal tea, pollinator support, soil aeration

Au fil des saisons

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Flowering

Fruiting

Foliage

Repères écologiques

Salinity: 2/9
Soil reaction: 6/9
Light: 8/9
Temperature: 5/9
Moisture: 5/9
Nutrients: 6/9

Taxonomie vérifiée avec le GBIF.

Ce qu'on demande souvent

Are dandelions good for my lawn?: They provide early food for pollinators and their deep roots help break up compacted soil.
How do I stop them from spreading?: Remove the flower heads before they turn into white seed puffs.

D'où vient le nom

The genus name Taraxacum comes from the Arabic word for a bitter herb, while the species name officinale refers to its historical use in pharmacies.

Bon à savoir

Every part of the dandelion is edible from the roots to the flowers.
The name dandelion comes from the French dent de lion, meaning lion's tooth.
Dandelion seeds can travel up to 5 miles on the wind.
The flowers track the sun, opening in the morning and closing at night.

Ton dandelion a mauvaise mine ?

Cette page est un guide général. Pocket Botanist diagnostique les problèmes directement à partir d'une photo de ta plante, adapte l'arrosage à sa luminosité et te prévient quand il faut t'en occuper.

Télécharger l'appli

Ce guide a été généré par IA et vérifié avec la taxonomie du GBIF. Il s'agit d'informations générales, et non de conseils horticoles ou vétérinaires. Découvre comment nous concevons ces guides.