Site Preparation: Remove weeds, debris, and aggressive vegetation. Ensure substrate is clean and lightly cultivated. Planting Time: Spring or early autumn for optimal establishment. Planting Density: Space plugs 20–30cm apart depending on desired coverage. Watering: Water well at planting; temporary irrigation may be required in the first few weeks in extreme drought. Maintenance: Once established, minimal care is needed. Occasional trimming encourages fresh growth and maintains flower density.

Colours Height 15–40cm – low-growing for green roofs and exposed sites Usage Green roofs, coastal gardens, dry verges, embankments, urban green spaces Establishment Method Plug plants for strong early growth Flowering Period June – September Core species, colours and flowering period A minimum of 10 species will be chosen from the following list, and used in equal quantities: Achillea millefolium Yarrow Agrimonia eupatoria Common Agrimony Anthyllis vulneraria Kidney Vetch Centaurea nigra Common Knapweed Centaurea scabiosa Greater Knapweed Daucus carota Wild Carrot Echium vulgare Viper’s Bugloss Galium verum Lady’s Bedstraw Knautia arvensis Field Scabious Leontodon hispidus Rough Hawkbit Leucanthemum vulgare Oxeye Daisy Linaria vulgaris Common Toadflax Lotus corniculatus Birdsfoot Trefoil Malva moschata Musk Mallow Plantago lanceolata Ribwort Plantain Plantago media Hoary Plantain Primula veris Cowslip Prunella vulgaris Self Heal Ranunculus acris Meadow Buttercup Ranunculus bulbosus Bulbous Buttercup Reseda luteola Weld Rhinanthus minor Yellow Rattle Silene vulgaris Bladder Campion Verbascum nigrum Dark Mullein

Location overview Perfect for rooftops, coastal cliffs, exposed embankments, and dry urban planting sites. Shade tolerance Prefers full sun; tolerates partial shade but performs best in open, exposed conditions. Soil type Thrives in free-draining, shallow substrates, sandy soils, and green roof media. Soil fertility Low fertility soils preferred; enriched soils may encourage competitive species. Moisture Drought-tolerant once established; avoid prolonged waterlogging.

Call us: 01423 369730

Email us: sales@johnchamberswildflowers.co.uk

Home / Products / Wildflower Plug Plants / Green Roof / Coastal Wildflower Plug Plants Mix

Wildflower Plug Plants

Green Roof / Coastal Wildflower Plug Plants Mix

Wildflower Plug Plants

Hardy wildflower plugs for green roofs, exposed coastal sites, and dry urban landscapes. Supports pollinators, biodiversity, and provides vibrant seasonal colour.

Product Description

The Green Roof / Coastal Wildflower Plug Plants Mix is designed for exposed, challenging sites including green roofs, coastal cliffs, and urban developments. This selection of UK native wildflowers thrives in dry, shallow soils and windy, salt-laden conditions, delivering vibrant seasonal colour while supporting pollinators and local biodiversity.

Supplied as 40cc plug plants, this mix establishes quickly, creating instant visual impact and long-term ecological benefits. Ideal for landscape contractors, ecologists, councils, architects, and landowners, it’s perfect for green infrastructure projects, coastal landscaping, and rooftop gardens.

Advice & Care

Site Preparation: Remove weeds, debris, and aggressive vegetation. Ensure substrate is clean and lightly cultivated.
Planting Time: Spring or early autumn for optimal establishment.
Planting Density: Space plugs 20–30cm apart depending on desired coverage.
Watering: Water well at planting; temporary irrigation may be required in the first few weeks in extreme drought.
Maintenance: Once established, minimal care is needed. Occasional trimming encourages fresh growth and maintains flower density.

Features

Colours

Height	15–40cm – low-growing for green roofs and exposed sites
Usage	Green roofs, coastal gardens, dry verges, embankments, urban green spaces
Establishment Method	Plug plants for strong early growth
Flowering Period	June – September

Core species, colours and flowering period

A minimum of 10 species will be chosen from the following list, and used in equal quantities:

Achillea millefolium	Yarrow
Agrimonia eupatoria	Common Agrimony
Anthyllis vulneraria	Kidney Vetch
Centaurea nigra	Common Knapweed
Centaurea scabiosa	Greater Knapweed
Daucus carota	Wild Carrot
Echium vulgare	Viper’s Bugloss
Galium verum	Lady’s Bedstraw
Knautia arvensis	Field Scabious
Leontodon hispidus	Rough Hawkbit
Leucanthemum vulgare	Oxeye Daisy
Linaria vulgaris	Common Toadflax
Lotus corniculatus	Birdsfoot Trefoil
Malva moschata	Musk Mallow
Plantago lanceolata	Ribwort Plantain
Plantago media	Hoary Plantain
Primula veris	Cowslip
Prunella vulgaris	Self Heal
Ranunculus acris	Meadow Buttercup
Ranunculus bulbosus	Bulbous Buttercup
Reseda luteola	Weld
Rhinanthus minor	Yellow Rattle
Silene vulgaris	Bladder Campion
Verbascum nigrum	Dark Mullein

Growing Conditions

Location overview	Perfect for rooftops, coastal cliffs, exposed embankments, and dry urban planting sites.
Shade tolerance	Prefers full sun; tolerates partial shade but performs best in open, exposed conditions.
Soil type	Thrives in free-draining, shallow substrates, sandy soils, and green roof media.
Soil fertility	Low fertility soils preferred; enriched soils may encourage competitive species.
Moisture	Drought-tolerant once established; avoid prolonged waterlogging.

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