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Herbaceous Perennial

× Alcalthaea suffrutescens 'Parkrondell' (d)

shrubby alcalthaea 'Parkrondell'

A tall, bushy deciduous perennial to 1.5m in height with lobed, softly hairy, grey-green leaves. Tall spires of light pink single, hollyhock-like flowers with an inner rosette of crinkled petals and a dark centre, are produced from mid-summer to early autumn

Synonyms

Alcea × _Althaea_, 'Parkrondell'
Malva 'Park Rondell'
see moreAlcea 'Park Rondel'

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Ultimate height

1.5–2.5 metres

Time to ultimate height

2–5 years

Ultimate spread

0.1–0.5 metres

Chalk

Loam

Sand

Moisture

Moist but well–drained, Well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun

Aspect

South–facing or West–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)

Botanical details

Family: Malvaceae
Native to GB / Ireland: No
Foliage: Deciduous
Habit: Bushy
Genus: × Alcalthaea are bigeneric hybrids between Alcea and Althaea. They are tall, branching, short-lived perennials with hairy foliage and spires of pink, cream or yellow flowers
Name status: Accepted

How to grow

Cultivation

Best in fertile, well-drained soil in a sunny, sheltered position. May need staking

Propagation

Propagate by softwood cuttings, does not produce seed

Suggested planting locations and garden types

City and courtyard gardens
Coastal
Cottage and informal garden
Wildlife gardens
Low Maintenance
Flower borders and beds

Pruning

Cut down to ground once flowering is over

Pests

May be susceptible to mallow flea beetles or aphids

Diseases

May be susceptible to a rust

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