The Growers Plantspo - September Herbaceous

Are you in need of some inspiration for your next garden project and after some late-flowering herbaceous plants that will go into early Autumn? check out some of our favourite September flowering varieties from Sedum to Anemone.

Achillea varieties such as 'Terracotta', 'Cloth of Gold' and 'Moon Dust'

Achilleas are a great addition to a mixed border or cottage garden in full sun - partial shade with flat-topped flowers that bloom from June - September with many cultivars and colours to choose from ranging from yellow to white and pink.

Flowers:  June-September (depending on variety)

 Position: Full sun - partial shade (depending on variety)

 Height: Up to 1m (depending on variety)

Soil: Moist, well-drained soil

 Pot size: 2L, 3L, 5L (depending on variety and subject to availability)

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Anemone varieties such as 'September Charm', 'Honorine Jobert' & 'Hadspen Abundance'

Flowers:  August - October (depending on variety)

 Position: Full sun - partial shade

 Height: Up to 1.2m (depending on variety)

Soil: Moist, fertile, humus-rich soil

 Pot size: 2L, 3L (depending on variety and subject to availability)

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Alchemilla Mollis

Flowers:  June-September (depending on variety)

 Position: Full sun - partial shade

 Height: Up to 0.6m

Soil: Humus-rich soil

 Pot size: 2L, 3L, 5L

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Alstromeria varieties such as 'White Magic', 'Indian Summer' and 'Inticancha Maya'

Flowers:  June-September (depending on variety)

 Position: Full sun - partial shade

 Height: Up to 0.9m (depending on the variety)

Soil: Fertile, moist, well-drained soil

 Pot size: 3L

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Agastache varieties such as 'Morello', 'Little Adder' & 'Blue Fortune'

Flowers:  July - October (depending on variety)

 Position: Full sun

 Height: Up to 1m (depending on the variety)

Soil: Fertile, well-drained soil

 Pot size: 2L. 3L

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Agapanthus varieties such as Africanus, 'Twister' and 'Polar Ice'

Flowers:  July - September (depending on the variety)

 Position: Full sun

 Height: Up to 1m (depending on variety)

Soil: Fertile, moist, well-drained soil

 Pot size: 2L, 3L, 5L  (depending on variety and subject to availability)

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Aster varieties such as 'Monch', 'Bahamas' & 'Barbados'

Flowers: August - October (depends on the variety)

 Position: Full sun

 Height: Up to 0.9m (depending on variety)

Soil: Well-drained, moderately fertile soil

 Pot size: 2L, 3L

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Campanula varieties such as 'Perla Blue', 'Perla White' & 'White Clips'

Flowers: July - September (depends on the variety)

 Position: Full sun - partial shade

 Height: Up to 0.3m (depending on variety)

Soil: Moist, well-drained, soil

 Pot size: 2L

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Coreopsis varieties such as 'Limerock Ruby', 'Golden Sphere' and 'Sunkiss'

Flowers: June - September (depends on the variety)

 Position: Full sun -partial shade

 Height: Up to 0.5m (depending on variety)

Soil: Fertile, well-drained soil

 Pot size: 3L

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Crocosmia varieties such as 'Lucifer' and 'George Davidson'

Flowers: August - September

 Position: Full sun -partial shade

 Height: Up to 1.2m (depending on variety)

Soil:Moderately fertile, humus-rich, well-drained soil

 Pot size: 3L, 5L

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Dahlia varieties such as 'Happy Days Pink', 'Happy Days Red' and 'Happy Days Yellow'

Flowers: June - September (depends on the variety)

 Position: Full sun -partial shade

 Height: Up to 0.5m (depending on variety)

Soil: Fertile, well-drained soil

 Pot size: 3L

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Echinacea varieties such as 'White Swan', 'Magnus' and 'Alba'

Flowers: July - September

 Position: Full sun

 Height: Up to 1m (depending on variety)

Soil: Most soils, except very dry or boggy

 Pot size: 2L, 3L

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Erigeron varieties such as 'Sea Breeze' and Erigeron karvinskianus

Flowers: May - October (depending on variety)

 Position: Full sun

 Height: Up to 0.5m (depending on variety)

Soil: Fertile, well-drained soil

 Pot size: 2L

 

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Geranium varieties such as 'Rozanne' and 'Max Frei' 

Flowers: June - October (depending on variety)

 Position: Full sun - partial shade

 Height: Up to 0.6m (depending on variety)

Soil: Fertile, well-drained soil

 Pot size: 2L

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Leucanthemum 'Banana Cream' and 'Snow Lady'

Flowers: June - September (depending on variety)

 Position: Full sun - partial shade

 Height: Up to 1m (depending on variety)

Soil: Moderately fertile, moist but well-drained soil

 Pot size: 2L, 3L

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Liatris varieties such as 'Alba', 'Floristan' & 'Kobold'

Flowers: August - September (depending on variety)

 Position: Full sun

 Height: Up to 1m (depending on variety)

Soil: Moderately-fertile, reliably moist soil

 Pot size: 2L, 3L

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Nepeta varieties such as 'Six Hills Giant', 'Walkers Low' and 'Junior Walker'

Flowers: June - September (depending on variety)

 Position: Full sun- partial shade

 Height: Up to 0.9m (depending on variety)

Soil: Moist, well-drained soil

 Pot size: 2l, 3L, 5L (depending on variety and subject to availability).

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Penstemon varieties 

Flowers: July - October

 Position: Full sun- partial shade

 Height: Up to 1m (depending on variety)

Soil: Fertile, moist, well-drained soil

 Pot size: 2l, 3L (depending on variety and subject to availability).

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Persicaria varieties such as 'Darjeeling Red', 'Superba' and 'Delgado'

Flowers: June - October (depending on variety)

 Position: Full sun- partial shade

 Height: Up to 1m (depending on variety)

Soil: Any moist soil

 Pot size: 2l (depending on variety and subject to availability)

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Perovskia varieties such as 'Blue Spire', 'Lacey Blue' & 'Little Spire'

Flowers: August - September (depending on variety)

 Position: Full sun

 Height: Up to 1.2m (depending on variety)

Soil:Well-drained, poor to moderately fertile

 Pot size: 2l, 5L (depending on variety and subject to availability)

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Rudbeckia varieties such as 'Goldsturm', 'Maya' & 'Sunbeckia Mia'

Flowers: August - October (depending on variety)

 Position: Full sun

 Height: Up to 0.8m (depending on variety)

Soil: Moderately fertile, preferably heavy but well-drained soil

 Pot size: 2l, 3L (depending on variety and subject to availability)

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Salvia varieties such as 'Caradonna', 'Cherry Lips and 'Sensation White'

Flowers: June - October (depending on variety)

 Position: Full sun

 Height: Up to 1.2m (depending on variety)

Soil: Moderately fertile, moist but well-drained soil

 Pot size: 2l, 3L,5L (depending on variety and subject to availability)

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Sanguisorba varieties such as 'Tanma' & 'Little Angel'

Flowers: June - September (depending on variety)

 Position: Full sun - partial shade

 Height: Up to 0.6m (depending on variety)

Soil: Poor-to-average, moist, well-drained soil

 Pot size: 2l, 3L (depending on variety and subject to availability)

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Scabiosa varieties such as 'Butterfly Blue', 'Flutter Deep Blue' and 'Flutter Deep Pink'

Flowers: June - September (depending on variety)

 Position: Full sun

 Height: Up to 0.5m (depending on variety)

Soil: Moderately fertile, well-drained, neutral to slightly alkaline soil

 Pot size: 2l, 3L (depending on variety and subject to availability)

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Sedum varieties such as 'Touchdown Teak, 'Autumn Joy' 'Herbstfreude' & 'Frosted Fire'

Flowers:  August - November (depending on variety)

 Position: Full sun

 Height: Up to 0.6m (depending on variety)

Soil: Moderately fertile, well-drained, neutral to slightly alkaline soil

 Pot size: 2l, 3L, 5L (depending on variety and subject to availability)

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Verbena varieties such as bonariensis and  'Lollipop'

Flowers: July - September

 Position: Full sun

 Height: Up to 2m (depending on variety)

Soil: Moderately fertile, moist but well-drained soil

 Pot size: 2L, 3L (depending on variety and subject to availability)

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Posted 12th Aug 2:20pm