Flowers to Sow in September

Wondering which flowers to sow in September? It’s time to sow calendula, larkspur, nigella and poppy seeds outdoors, plus wildflowers. In the greenhouse, sow cyclamen, pelargonium and schizanthus seeds and sow sweet pea seeds in a cold frame. Browse our September flower seeds below.

Wondering which flowers to sow in September? It’s time to sow calendula, larkspur, nigella and poppy seeds outdoors, plus wildflowers. In the greenhouse, sow cyclamen, pelargonium and schizanthus seeds and sow sweet pea seeds in a cold frame. Browse our September flower seeds below.

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Candytuft Seeds - Fairy Mix

Average Packet Content 500 seeds

£1.75

Cowslip Seeds

Average Packet Content 120 seeds

£2.99

Godetia Seeds - Precious Gems Mix

Average Packet Content 130 Seeds

£1.99

Sweet Pea Seeds - Showbench Mix

Average Packet Content 25 seeds

£2.99

Convolvulus minor Seeds - Blue Ensign

Average Packet Content 180 seeds

£1.99

Lupin Seeds - Pink Fairy

Packet Content 20 seeds

£1.55

Phacelia Seeds - Lacy

Average Packet Content 900 seeds

£1.99

Aquilegia Seeds - Chocolate Soldier

Average Packet Content 50 seeds

£2.99

Calendula Seeds - Pink Surprise

Average Packet Content 100 seeds

£1.99

Poached Egg Plant Flower Seeds

Average Packet Content 100 seeds

£1.99

Cornflower Seeds - Classic Romantic

Average Packet Content 200 seeds

£1.99

Clarkia elegans Seeds - Pretty Polly Mix

Average Packet Content 2600 seeds

£1.99

Candytuft Seeds - Mount Hood

Average Packet Content 40 seeds

£1.99

Love-in-a-Mist Seeds - Blue Stars

Average Packet Content 950 seeds

£2.49

Flowering Carrot Seeds - Dara

Average Packet Content 40 seeds

£2.99

Strawflower Seeds - Forever Mix

Average Packet Content 850 seeds

£0.99

Cornflower Seeds - Blue Diadem

Average Packet Content 190 seeds

£2.49

Sweet Pea Seeds - Anne Gregg

Average Packet Content 25 seeds

£2.99

Nemesia Seeds - Carnival Mix

Average Packet Content 350 seeds

£1.75

Leucanthemum Seeds - Crazy Daisy

Average Packet Content 80 seeds

£2.99

Love-in-a-Mist Seeds - Ebony & Ivory

Average Packet Content 450 seeds

£1.99

Sweet Pea Seeds - Long Stem Mixed

Average Packet Content 50 seeds

£4.49

Calendula Seeds - Lemon Zest

Average Packet Content 120 seeds

£1.99

Cerinthe Seeds - Honey Bee

Packet Content 20 seeds

£2.99

Love-in-a-Mist Seeds - Miss Jekyll

Average Packet Content 750 seeds

£1.99

Oxalis Seeds - Valdivensis

Average Packet Content 25 seeds

£1.99
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This month sow the wildflowers primrose and cowslip in a cold frame.

Sweet peas can be sown in a cold frame or unheated greenhouse to over-winter. The young plants can be planted out in March/April to obtain early blooms.

Once summer bedding plants have been removed from your borders, plant spring flowering plants such as bellis (daisy), pansy, polyanthus, primrose and wallflowers along with spring flowering bulbs. When rose blooms have faded a last deadheading of roses can be done, and taller stems may be slightly shortened so that movement from wind can be reduced.

Head to our blog for more September advice.

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