Tagetes patula 'Red Knight'

RHS Plant Profile
French marigold 'Red Knight'

Save a plant

Where do you want to save Tagetes patula 'Red Knight'?

Plants I own
Wishlist
Go to My Plants
French marigold 'Red Knight' RHS / Joanna Kossak
French marigold 'Red Knight' RHS / Joanna Kossak
Plants for pollinators
Annual Biennial Bedding

A bushy annual to around 20cm tall with aromatic, divided foliage. Single flowerheads comprising deep mahogany-red petals edged with yellow surrounding a central yellow disk are borne from late spring into autumn

Position

Full sun

Soil Types

Clay, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
1 year
Max Spread
0.1-0.5 metres
Max Height
0.1-0.5 metres

Growing Conditions

Clay Loam Sand
Moisture
Moist but well–drained or Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun
Aspect
South–facing or West–facing or East–facing
Exposure
Exposed or Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

  • H1A: under glass all year (>15C)
  • H1B: can be grown outside in the summer (10 - 15)
  • H1C: can be grown outside in the summer (5 - 10)
  • H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
  • H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
  • H4: hardy through most of the UK (-10 to -5)
  • H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
  • H6: hardy in all of UK and northern Europe (-20 to -15)
  • H7: hardy in the severest European continental climates (< -20)
H2

Colour & Scent

Fragrance Foliage
Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Asteraceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Bushy
Potentially harmful
Foliage may aggravate skin allergies. Wear gloves and other protective equipment when handling
Genus
Tagetes can be annuals or perennials of upright growth, with strongly aromatic pinnately divided leaves and showy daisy-like, single or double flower-heads in summer and autumn
Name Status
Accepted

How to Grow

Cultivation

Grow in moderately fertile, well-drained soil in full sun. Water freely in dry spells

Propagation

Propagate by seed sown at 21°C in spring

Suggested planting locations and garden types

  • Coastal
  • Patio and container plants
  • City and courtyard gardens
  • Cottage and informal garden
  • Wildlife gardens
  • Flower borders and beds
  • Garden edging

Pruning

Deadhead regularly to prolong flowering

Pests

Generally pest-free

Diseases

Generally disease-free