Chrysanthemum 'Boulou Yellow' (12)

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chrysanthemum 'Boulou Yellow'

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chrysanthemum 'Boulou Yellow' RHS
chrysanthemum 'Boulou Yellow' RHS
Conservatory Greenhouse Herbaceous Perennial
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A half-hardy perennial that produces vigorous, bushy plants with thick stems and flowers in mid to late autumn. Plants are relatively dwarf reaching 60cm in height. It bears double, incurved blooms in a warm yellow. Disbudded, these reach 14cm across. Florets are long and broad, overlapping, pointed and curled

Position

Full sun

Soil Types

Loam

Max Height

0.5-1 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
1–2 years
Max Spread
0.1-0.5 metres
Max Height
0.5-1 metres

Growing Conditions

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

Position

Full sun
Aspect
South–facing or West–facing or East–facing
Exposure
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
Skin allergen. Wear gloves and other protective equipment when handling
Genus
Chrysanthemum are erect woody-based perennials with aromatic, pinnately lobed leaves and flowerheads of diverse form, from late summer to late autumn
Name Status
Accepted
Horticultural Group

Horticultural Classification Codes

Horticultural Classification Codes are often given to genera which have a large number of species or cultivars. They are used to categorise cultivated plants based on specific, shared characteristics such as shape, colour, size or flowering time, and can be displayed as letters or numbers

For example:
Dahlia ‘Sunset Kate (Sin) = Single flower
Rosa ‘Marigold’ (HT) = Hybrid Tea

These tender, short-lived but low-maintenance chrysanthemums are bred to provide a burst of colour as a houseplant. They tend not to re-bloom so are best treated as a cut flower

How to Grow

Cultivation

For strong plants with large blooms, restrict to three stems per plant. Plant out in pots after danger of frost has passed. Stake (see staking perennials) and feed regularly. Bring inside before the first frost to flower. Store stools in frost-free conditions, ready for bringing on for cuttings in spring. See chrysanthemum cultivation

Propagation

Propagate by basal softwood cuttings in spring

Suggested planting locations and garden types

  • Patio and container plants
  • Cut flowers

Pruning

Pinch out growing tips and disbud as required

Pests

Susceptible to Chrysanthemum leaf miner, glasshouse whitefly and aphids

Diseases

May be susceptible to glasshouse grey mould, powdery mildews and chrysanthemum white rust