What to Sow in September | Autumn Flowers & Vegetables | Irish Plants Direct

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Sow in September to keep your garden productive and colourful as the seasons change. These hardy flowers, leafy greens, and overwintering crops thrive in cooler temperatures and establish strong roots before winter. Ideal for early spring blooms and fresh winter harvests.

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» SEED INDEX

» September – Keep your garden growing into autumn with hardy flowers and veg

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Cornflower Ball Mix ORGANIC Seeds

Bright blue and white blooms on tall stems, loved by bees butterflies and pollinators.Easy to grow with long summer flowering.

Price€1.80

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Cornflower Ball Mix ORGANIC Seeds

Bright blue and white blooms on tall stems, loved by bees butterflies and pollinators.Easy to grow with long summer flowering.

Price€1.80

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Cornflower Blue Diadem Seed

Sky blue double blooms with dark centres for borders meadows and wildlife gardens. Loved by bees butterflies and pollinators. Easy to grow with long summer flowering. &n...

Price€1.50

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Cornflower Blue Diadem Seed

Sky blue double blooms with dark centres for borders meadows and wildlife gardens. Loved by bees butterflies and pollinators. Easy to grow with long summer flowering. &n...

Price€1.50

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Cornflower Mixed ORGANIC Seeds

List Price: €3.49

You save €1.50

Price€1.99

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Cornflower Mixed ORGANIC Seeds

Price€1.99

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Cornflower White Ball Seed

List Price: €1.50

You save €0.51

Price€0.99

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Cornflower White Ball Seed

Price€0.99

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Cress Common Seeds

Price€1.69

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Cress Common Seeds

Price€1.69

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Cress Fine Curled Seeds

List Price: €1.99

You save €0.29

Price€1.70

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Cress Fine Curled Seeds

Price€1.70

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Cress ORGANIC Seeds

Fast growing organic peppery shoots ideal for salads sandwiches and windowsill growing.

Price€1.50

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Cress ORGANIC Seeds

Fast growing organic peppery shoots ideal for salads sandwiches and windowsill growing.

Price€1.50

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Damask Flower Seeds

Price€3.39

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Damask Flower Seeds

Price€3.39

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Delphinium Pacific Giant Mixed Seed

Price€1.50

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Delphinium Pacific Giant Mixed Seed

Price€1.50

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Dogs Grass Seeds

Native perennial grass with fine upright tufts ideal for meadows and wildlife friendly plantings.

List Price: €1.25

You save €0.26

Price€0.99

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Dogs Grass Seeds

Native perennial grass with fine upright tufts ideal for meadows and wildlife friendly plantings.

Price€0.99

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Dyers Weed Seeds

Price€2.69

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Dyers Weed Seeds

Price€2.69

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Flax Linum Charmer Mix Seeds

Price€4.10

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Flax Linum Charmer Mix Seeds

Price€4.10

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Forget Me Not Indigo Seeds

Price€3.50

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Forget Me Not Indigo Seeds

Price€3.50

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Forget Me Not Mix Seeds

Price€3.75

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Forget Me Not Mix Seeds

Price€3.75

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Foxglove Warm Rose F1 Seeds

A compact first year flowering foxglove with warm rose pink blooms that bring soft colour and elegance to borders and cottage gardens.

Price€5.25

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Foxglove Warm Rose F1 Seeds

A compact first year flowering foxglove with warm rose pink blooms that bring soft colour and elegance to borders and cottage gardens.

Price€5.25

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Green Manure Autumn Winter Mix Seeds

A hardy green manure blend that protects soil through autumn and winter while improving structure and fertility for the season ahead.

Price€4.65

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Green Manure Autumn Winter Mix Seeds

A hardy green manure blend that protects soil through autumn and winter while improving structure and fertility for the season ahead.

Price€4.65

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Green Manure Crimson Clover Seeds

A quick-growing green manure that enriches soil, fixes nitrogen, and leaves beds in perfect condition for your next crop.

Price€4.10

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Green Manure Crimson Clover Seeds

A quick-growing green manure that enriches soil, fixes nitrogen, and leaves beds in perfect condition for your next crop.

Price€4.10

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Growth Activator Grass Seeds

List Price: €1.35

You save €0.36

Price€0.99

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Growth Activator Grass Seeds

Price€0.99

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Gypsophila Cotton Candy Mix Seeds

Price€3.50

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Gypsophila Cotton Candy Mix Seeds

Price€3.50

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Gypsophila Monarch White Seeds

Price€2.35

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Gypsophila Monarch White Seeds

Price€2.35

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Gypsophila Single Flowered Mixed Seeds

Price€1.69

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Gypsophila Single Flowered Mixed Seeds

Price€1.69

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Helenium Autumnale Seeds

Price€1.60

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Helenium Autumnale Seeds

Price€1.60

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Helenium Hoopsii Seeds

Price€1.50

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Helenium Hoopsii Seeds

Price€1.50

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Imperata Cylindrica Red Baron Grass Seeds

Price€4.55

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Imperata Cylindrica Red Baron Grass Seeds

Price€4.55

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September sowing is all about giving hardy plants a head start. Whether you’re planning early spring colour or winter greens, these varieties are chosen for reliability and resilience..

Our Products

SEED INDEX
Flower Seeds – Colourful Blooms
Vegetable Seeds – Grow your own food
Herb Seeds – Fresh flavour at home
Tree Seeds – Long Lasting Beauty
Shrub Seeds – Structure & form
Annual Seeds – Bright summer colour
Biennial Seeds – Strong second year flowers
Hardy Perennial Seeds – Reliable year after year
Half Hardy Perennial Seeds – Tender long lasting colour
Pollinator Plants From Seed – Bee and butterfly friendly flowers
Climbing Plants From Seed – Vertical colour and coverage
Cut Flowers From Seed – Fresh blooms for home arrangements
Gravel and Rockery Plants From Seed – Tough plants for dry areas
Edible Flowers From Seed – Grow flowers that brighten both garden and plate
Scented Flowers from Seed – Beautiful blooms with natural fragrance
Wildlife Plants From Seed – Flowers that support bees birds and beneficial insects
Wildflower Seeds – Natural colour for meadows borders and wild areas
Flowers for Containers from Seed – Colourful blooms for pots patios and small spaces
Container Vegetables and Herbs from Seed – Fresh tasty crops for pots patios and small spaces
RHS Awarded Flower Seeds – Trusted varieties with proven garden performance
RHS Awarded Vegetable Seeds – Reliable crops with proven garden performance
Houseplants Grown from Seed – Beautiful indoor plants for every home
Long Flowering Plants From Seed – Colour all season
Low Maintenance Plants From Seed – Effortless colour & growth
Bee Friendly Herb Seeds – Aromatic herbs that attract bees and pollinators
Seed Collections – Expert selected sets for easy gardening and great results
Microgreen Seeds – Fresh nutritious greens ready in days
Sprouting Seeds – Fresh crunchy sprouts ready in days
Plants for Shade and Partial Shade From Seed – Colour and interest for low light areas
Coastal Garden Plants from Seed – Hardy plants for windy and salt exposed gardens
Cottage Garden Plants from Seed – Traditional flowers for timeless charm
Fresh Fruit from Seed – Grow your own delicious home grown fruit
Ornamental Grasses from Seed – Movement texture and structure for every garden
Organic Garden Seeds All – Start your eco friendly garden with seeds grown the natural way
Grow Organic Flowers From Seed – Eco friendly flowers that support bees and biodiversity
Grow Organic Veg From Seed – Grow real flavour
Grow Organic Herbs From Seed – Natural herbs with rich flavour and strong reliable growth
Evergreen Plants from Seed – Year round structure and colour
Grow Your Own Medicinal Plants From Seed – Harvest fresh ingredients for teas and remedies
Grow Green Manure From Seed – Improve soil structure & build fertility
Budget Seed Range – Grow more for less with our budget seed range
Easy Seeds For Kids –Fun, fast and fool proof seeds for kids — perfect for classrooms windowsills and family projects
Sativa Organic Seeds
Buzzy Seeds — Add the buzzy seed range to your basket for simple sowing and brilliant results
Horti Tops Seeds –Your garden starts here with horti top seeds.
Mr Fothergills Seeds – Trusted varieties from mr fothergills for strong germination and brilliant garden results
Country Value Seeds make it easy to grow plants at everyday value.
Italian Franchi Semanti Seeds – Grow the rich flavours of Italy with this celebrated seed range.
Sarah Raven Seeds – Bright, reliable varieties chosen for colour, impact, and easy success in every garden
Saflax Seeds – Huge selection of exotic and garden plants
Premium Seeds – Grow flowers, food, and natural beauty with this versatile range
Seklos Seeds – Grow bold, reliable varieties from one of Europes most trusted seed producers
Lucia Elite Seeds – A refined seed range offering standout varieties chosen for quality modern appeal and steady garden performance
Johnsons Seeds – Bring garden theatre to life with Johnsons quality seeds
Grow Legumes From Seed – Grow tasty protein rich legumes at home with easy sowing and reliable yields
Perennial veg from Seeds – Grow once, harvest for years — sustainable crops for every garden
Grow Your Own Salad From Seed – Fresh salad at home
Grow Leafy Greens From Seed – Growing leafy greens from seed is simple and satisfying
Winter Veg From Seed – Hardy vegetables that grow through the colder months for reliable winter harvests
Fast Growing Veg From Seed – Quick and easy vegetables that grow fast and give reliable harvests in a short time
Grow root veg from seed for unbeatable flavour straight from your garden
Grow Alpine Plants From Seed– Grow classic alpine species that form cushions and carpets for year round structure
Moisture Loving Plants From Seed – Grow beautiful plants that love rich moist ground and reward you with strong healthy growth
Dried Flowers From Seed – Grow flowers that dry perfectly for crafts and decor
Ground Cover Plants from Seed – Create a natural living carpet
January — Start now for earlier colour and earlier harvests
February — An early season range designed for strong indoor starts in February
March — Sow now for fast spring growth and a garden that takes off early
April – A fresh and vibrant selection of seeds perfect for sowing in April, giving strong germination and a long season of colour and harvest
May – A warm and generous selection of seeds perfect for sowing in May, giving fast germination and a long season of colour and harvest.
June – An energetic month that rewards every seed sown with rapid growth and reliable results
July – This is the time to refresh borders, fill gaps, start late salads and keep a steady supply of herbs and vegetables coming
August – This month is the perfect time to sow quick growing crops, late salads, herbs and hardy flowers
September – Keep your garden growing into autumn with hardy flowers and veg
October – Let autumn work for you with hardy flowers and veg that thrive in cooler weather
November – For strong winter roots and an early burst of colour and crops in spring
December – Use the winter chill to build strong roots and reward you with early spring colour and harvests
WHITE – Transform your garden with classic white flowers that light up every space
ORANGE – Fill your garden with warm glowing colour using these orange flowers
BLUE – Fill your garden with calm blue colour
RED – Fill your garden with bold red colours this summer
PINK – Fill your garden with soft pink colours this year
PURPLE – Fill your garden with rich purple colour
CREAM – Add soft natural colour to your garden
GREEN – A fresh modern look to your garden with soft green flowers
MIXED – Create your new garden with bright mixed colour
BLACK – Bring bold dramatic colour to your garden
YELLOW – Welcome a sunny warm colour to your garden
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