Best Flower Seeds to Sow in September

Explore flower seeds that are well suited to sowing in September. Browse popular flower seeds to sow this month, with seasonal seed varieties for gardens, pots, borders and allotments.

120 products

120products

Meconopsis 'Lingholm' (Ex Grandis)

Blue Poppy, Himalayan Poppy, 'Fertile Blue Gr…

£3.95

Papaver Somniferum Ultimate Mixture

Opium Poppy

£3.65

Achillea Millefolium Mix

Common Yarrow, Devil's Nettle, Hundred-Leaved…

£2.75

Meconopsis Grandis

Blue Poppy

£3.95

Meconopsis Baileyi

Previously Called Meconopsis Betonicifolia

£3.75

Muhlenbergia Capillaris

Pink Muhly Grass, Muhly Grass, Hairawn Muhly,…

£3.45

Papaver Macrostomum Black Magic

Black Magic Poppy, Persian Poppy

£3.95

Angelica Sylvestris Ebony

Vicars Mead

£3.95

Papaver Somniferum 'Lauren's Grape'

£3.70

Fibigia Clypeata

£2.95

Rhinanthus Minor

Yellow Rattle, Cockscomb, Hay Rattle

£2.60

Astrantia Major 'Ruby Wedding Series'

Masterwort 'Ruby Wedding'

£3.75

Helleborus Orientalis 'Black Beauty'

£3.65

Papaver Somniferum Summer Blaze

Opium Poppy

£2.90

Calendula Officinalis

Common Marigold, Pot Marigold

£2.10

Trillium Chloropetalum

Common Trillium

£3.95

Helleborus Orientalis Plantworld Doubles

£3.95

Meconopsis Himalayan Velvet (Lingholm - Ex Grandis)

Himalayan Poppy, Meconopsis Ex Grandis

£3.55

Delphinium Ajacis Mix

£2.10

Selinum Wallichianum

Wallich Milk Parsley, Selinum Tenuifolium, Li…

£3.25