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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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Godetia Seeds - Little Frills Mix

Average Packet Content 900 seeds

£1.55

Candytuft Seeds - Mount Hood

Average Packet Content 40 seeds

£1.99

Gaura Seeds - The Bride

Average Packet Content 25 seeds

£3.49

Flowering Carrot Seeds - Dara

Average Packet Content 40 seeds

£2.99

Phlox drummondii Seeds - Blushing Bride

Average Packet Content 200 seeds

£2.49

Nemesia Seeds - Masquerade

Average Packet Content 150 seeds

£1.99

Poached Egg Plant Flower Seeds

Average Packet Content 100 seeds

£1.99

Sweet Pea Seeds - Distant Horizons

Average Packet Content 50 seeds

£4.49

Godetia Seeds - Precious Gems Mix

Average Packet Content 130 Seeds

£1.99

Sweet Pea Seeds - Kingfisher

Average Packet Content 25 seeds

£2.99

Antirrhinum Seeds - Twilight Mix

Average Packet Content 80 seeds

£2.99

Sweet Pea Seeds - Anne Gregg

Average Packet Content 25 seeds

£2.99

Cornflower Seeds - Classic Romantic

Average Packet Content 200 seeds

£1.99

Calendula Seeds - Kinglet Mix

Average Packet Content 100 seeds

£2.49

Sweet Pea Seeds - Showbench Mix

Average Packet Content 25 seeds

£2.99

Calendula Seeds - Pink Surprise

Average Packet Content 100 seeds

£1.99

Linaria Seeds - Fairy Bouquet

Average Packet Content 6300 Seeds

£1.75

Nemesia Seeds - Carnival Mix

Average Packet Content 350 seeds

£1.75

Aquilegia Seeds - Chocolate Soldier

Average Packet Content 50 seeds

£2.99

Love-in-a-Mist Seeds - Blue Stars

Average Packet Content 950 seeds

£2.49

Calendula Seeds - Lemon Zest

Average Packet Content 120 seeds

£1.99

Cerinthe Seeds - Honey Bee

Packet Content 20 seeds

£2.99

Forget-Me-Not Seeds - Spring Symphony Blue

Average Packet Content 400 seeds

£2.49

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

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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