Up to 50% off summer plants sale | Shop now

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Plants that Flower in September

The heat may be starting to fade, but that does not mean the colour should. Keep it fresh with asters, phlox and late-flowering anemones.

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Showing Flowering month : September clear all
1828 items
Agastache Blackadder

Up to 40%

Agastache 'Blackadder'
£5.39 - £31.49
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
2 litre pot available to order from autumn
3 × 2 litre pots available to order from autumn
0.5 star 1 star 1 star 1 star 1 star 4.5 5 34
Agastache Blue Boa (PBR)
Agastache 'Blue Boa' (PBR)
£8.99 - £52.99
9cm pot In stock (shipped within 2-3 working days)
2 litre pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
3 × 2 litre pots In stock (shipped within 2-3 working days)
0.5 star 1 star 1 star 1 star 1 star 4.6 5 20
Agastache Blue Fortune

30% off

Agastache 'Blue Fortune'
£6.29 - £13.99
9cm pot In stock (shipped within 2-3 working days)
2 litre pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
0.75 star 1 star 1 star 1 star 1 star 4.7 5 38
Agastache foeniculum Alabaster

50% off

Agastache foeniculum 'Alabaster'
£4.50 - £9.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
0.75 star 1 star 1 star 1 star 1 star 4.8 5 13
Agastache rugosa Little Adder
Agastache rugosa 'Little Adder'
£8.99 - £20.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Agastache rugosa Beelicious Pink ('Agapk') (PBR)

New

Agastache rugosa Beelicious Pink ('Agapk') (PBR)
£9.99 - £42.99
9cm pot shipped within 2 weeks
3 × 9cm pots shipped within 2 weeks
6 × 9cm pots shipped within 2 weeks
Agastache rugosa Beelicious Purple ('Agapd') (PBR)

40% off

Agastache rugosa Beelicious Purple ('Agapd') (PBR)
£9.99 - £22.99
9cm pot In stock (shipped within 2-3 working days)
2 litre pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Ageratina altissima Chocolate
Ageratina altissima 'Chocolate'
£8.99 - £19.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
1 star 1 star 1 star 1 star 1 star 5.0 5 4
Agrostemma githago
Agrostemma githago
£3.29
approx 75 seeds In stock (shipped within 2-3 working days)
Alchemilla mollis

30% off

Alchemilla mollis
£2.79 - £30.99
approx 75 seeds In stock (shipped within 2-3 working days)
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
2 litre pot available to order from autumn
1 star 1 star 1 star 1 star 1 star 4.9 5 20
Alisma subcordatum
Alisma subcordatum
£27.99 - £39.99
3 × 9cm pots Delivery by trusted supplier within 1 week
3 × 1 litre aquatic pots Delivery by trusted supplier within 1 week
Alstroemeria Beach Valley (Summer Paradise - Valley Series)

New

Alstroemeria Beach Valley (Summer Paradise - Valley Series)
£25.99 - £69.99
2 litre pot In stock (shipped within 2-3 working days)
3 × 2 litre pots In stock (shipped within 2-3 working days)
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