Castanea 'Marigoule' (F) | sweet chestnut 'Marigoule'

RHS

Trees

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A vigorous, deciduous, upright to spreading tree with oblong, glossy, dark green, serrated leaves. Pale yellowish flowers appear in catkins in summer and are followed by edible dark brown nuts encased in spiky green fruits in early autumn

Position

Full sun

Soil Types

Loam, Sand

Max Height

Higher than 12 metres

Max Spread

wider than 8 metres

Size

Time to Maturity: 20–50 years
Max Spread: wider than 8 metres
Max Height: Higher than 12 metres

Growing Conditions

Loam Sand

Moisture: Well–drained
pH: Acid or Neutral

Position

Full sun

Aspect: South–facing or North–facing or East–facing or West–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): H6
Drought Resistance: Yes

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Fagaceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Columnar upright
Genus: Castanea are fast-growing and large deciduous trees or large shrubs, with long, toothed leaves and conspicuous yellow catkins followed by spiny fruits
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: This genus produces fruit, but not necessarily edible fruit

How to Grow

Cultivation

Grows best in a fertile, well-drained soil in full sun

Propagation

Propagate by budding in summer or grafting in winter

Suggested planting locations and garden types

Architectural
Low Maintenance

Pruning

Pruning group 1

Pests

Generally pest-free

Diseases

May be susceptible to phytophthora, leaf spot, chestnut blight and honey fungus