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Garden Plants in Flower September - Shrubs, Perennials, Bulbs and Trees 


September flowers in the garden sees the changing of flower colours to the 'traditional' autumn colours of yellows, oranges, browns - especially in the perennial plants. Shrubs continue to put their mark on September with mainly whites, but with some foliage tints starting to show towards end of month.

Late summer or autumn - take your pick - depending upon where you live, is a good time in the garden - yet also a reminder that the end of the growing season is near. Hopefully, this September age of flowers will alert you to what you can be planting to extend the period of interest in your garden.

Grasses really start to come into their own at this time - and onwards. The straw-coloured foliage and stems highlighting the other flower colours even more.

Welcome to September, and PLEASE continue sending us your observations as to what you find in your garden - or on walkabouts - that fit in with this page.

Here's a few of the plants to delight you in September...

Alstroemeria TessaAnemone Honorine JobertHelenium Riverton GemMyrtus comunisCyclamen hederifoliaRudbeckia var. Deamii

We need to know about SHRUBS flowering in September  ... Such as

Myrtus | Magnolia | Fuchsia | Eucryphia | Hydrangea | Prunus | Phlomis | Erica |

We need to know about PERENNIALS incl. BULBS flowering in September ... Such as ...

 Alstroemeria | Anemone | Helenium | Helianthus | Cyclamen | Rudbeckia | Echinacea | Euphatorium | Salvia | Crocosmia | Crocus | Geranium| Gaura | Eucomis | Ligularia | Lysimachia | Lychnis | Lobelia | Lythrum | Monarda | Penstemon | Phlox | Tradescantia | Tricyrtis | and of course all the others that I have forgotten!

Flowering plants, shrubs, perennials, trees and bulbs in the September Garden


1st

Hypericum ElsteadAbelia schumaniiColletia histrix - C. armata
Hypericum x inodorum 'Elstead'
Abelia schumanii shows off it's pink September flowers together with attractive new foliage
Colletia histrix - C. armata - Probably one of the thorniest of shrubs - a great deterrent, but rarely grown.

Crataegus 'Pauls Scarlet'Erythrina crista-galliMiscanthus nepalensis
Crataegus laevigata 'Paul's Scarlet'. One of the better berrying Hawthorns.
Erythrina crista-galli
Miscanthus nepalensis

Miscanthus sinensis  Sirene Miscanthus sinensis RotsilberMiscanthus sinensis Silberspinne
Miscanthus sinensis 'Sirene'
Miscanthus sinensis 'Rotsilber'
Miscanthus sinensis Silberspinne - Named because of the silver spine stripe down the center of each leaf.


2nd
Hydrangea paniculata 'Greenspire'Acanthus spinosaDelphinium elatum 'Crown Jewel'
Hydrangea paniculata 'Greenspire'
Acanthus spinosa - 'Bear's Breeches' herbaceous perennial.
Delphinium elatum 'Crown Jewel'

Delphinium elatum Rosemary BrockDeschampsia cespitosa GoldtauDiascia Salmon Queen
Delphinium elatum 'Rosemary Brock'
Deschampsia cespitosa 'Goldtau'
Diascia 'Salmon Queen'


3rd

Eucomis AutumnalisMagnolia grandiflorumMiscanthus sinensis Morning Light
Eucomis Autumnalis
Magnolia grandiflorum
Miscanthus sinensis 'Morning Light'

Salvia farinacea VictoriaSalvia microphyllus 'Cero Potesi'Salvia officinalis 'Tricolor'
Salvia farinacea 'Victoria' - Best as container plant, and over-wintered frost free situation.
Salvia microphyllus 'Cero Potesi'
Salvia officinalis 'Tricolor' - Not the hardiest of sages. Needs a dry soil for winter.


4th

Miscanthus sinensis 'Kaskade'Achillea TerracotaEuryops-tysonii
Miscanthus sinensis 'Kaskade'
Achillea terracotta
Euryops tysonii - reasonably hardy sub shrub


5th

Echinacea purpurea MagnusErigeron karvinskianus ProfusionPenstemon Alice Hindley
Echinacea purpurea 'Magnus'
Erigeron karvinskianus 'Profusion'
Penstemon 'Alice Hindley' 


6th

Tricyrtus formosana or hirta!Myrtus comunis - Myrtle BushNemesia Wisley Cream
 Tricyrtis formosana - The Toad Lily.
Myrtus comunis - Myrtle Bush
Nemesia 'Wisley Cream'


7th

Cortaderia IcalmCortaderia Pink PhantomCortaderia richardii
Cortaderia Icalm
Cortaderia Pink Phantom has good variegated foliage as well as the pink plume flowers in September
Cortaderia richardii

Cortaderia selloana AureolineataCortaderia selloana EvitaCortaderia selloana pumilla
Cortaderia selloana 'Aureolineata' - Probably the best of the variegated grasses
Cortaderia selloana 'Evita' - Gorgeous Pampas plumes and grey green foliage
This short growing Cortaderia selloana 'Pumilla' means that there are no excuses for not growing Pampas because they get too big!

Cortaderia Silver Feather 'Notcort'Penstemon Pennington Gem
Cortaderia Silver Feather 'Notcort' - Silver stripe down centre of each leaf. How to grow Pampas Grass
Penstemon Pennington Gem


8th

Chelone obliqua - Turtlehead FlowerClematis bonstedtiiClematis helios
Chelone obliqua - Turtlehead Flower - Fully hardy perennial
Clematis bonstedtii - Herbaceous perennial type that will grow to 1m plus each year.
Clematis helios

Clematis KaiuCrocosmia Severn SunriseLate batch of Penstemon blooms with Japanese Anemones
Clematis 'Kaiu'
Crocosmia "Severn Sunrise'
Penstemons with Japanese Anemones


9th

Erigeron karvinskianus ProfusionPenstemonGaura Lindhermanii
Erigeron karvinskianus 'Profusion' - Low growing ground cover daisy flowers.
Penstemons still flowering
Gaura lindheimeri  still flowering well into September

Lantana camara RadiationSchizostylis coccineumDiascia Salmon
Lantana camara Radiation is NOT hardy, so included here as a reminder to take under cover before frost kills it.
Schizostylis coccineum - The Kafir Lily
Diascia salmon still putting on a good display

Achillea millefolium CredoActaea simplex Pink SpikeActaea simplex Prichards Giant | Euphatorium maculatum Riesenschirm
Achillea millefolium Credo
Actaea simplex Pink Spike
Actaea simplex 'Prichards Giant' | Euphatorium maculatum 'Riesenschirm'

Agapanthus Loch HopeAgapanthus Purple CloudCyclamen hederifolia
Agapanthus Loch Hope
Agapanthus Purple Cloud
Cyclamen hederifolia - drift planting idea under shade of trees.

Cyclamen hederifolia
Cyclamen hederifolia


10th

Alstroemeria ligtu TessaAnemone hybrida WhirlwindAnemone hybridus
Alstroemeria ligtu 'Tessa'
Anemone hybrida 'Whirlwind'
Anemone hybridus

Festuca glauca Elijah Blue Gaura LindhermaniiGeranium Mavis Simpson
Festuca glauca 'Elijah Blue'
Gaura lindheimeri
Geranium 'Mavis Simpson'


11th

Anemone hybridus ElegansAnemone hybrida Honorine JobertArgyranthemum
Anemone hybridus Elegans
Anemone hybrida 'Honorine Jobert'
Argyranthemum - Pink form

Persicaria amplicaulis 'Taurus Blotau'Persicaria Red Dragon-RicinunuRudbeckia Deami and Persicaria Taurus Blotau
Persicaria amplicaulis 'Taurus Blotau'
Persicaria 'Red Dragon-Ricinunu'
Rudbeckia Deami and Persicaria Taurus Blotau - A plant association idea


12th

Miscanthus sinensis 'Roland'Schizostylis coccinea MajorSedum spectabile 'Brilliant'
Miscanthus sinensis 'Roland'
Schizostylis coccinea Major
Sedum spectabile 'Brilliant'

Sedum Purple QueenSedum spectabilis 'Herbstfreude'Sedum spectabilis 'Sunburst'
Sedum 'Purple Queen' 
Sedum spectabilis 'Herbstfreude'
Sedum spectabile 'Sunburst'    

Verbena bonariensismiscamthus sinensis Roland Ornamental Garden GrassPhyllostachys aurosulcata f. spectabilis
Verbena bonariensis
Miscanthus sinensis Roland
Phyllostachys aurosulcata f. spectabilis - A stunning clump/cluster of stems for colour through September - and all of Winter.


13th

Skimmia japonica subsp. Japonica RubinettaAster frikartii MonchAster novae algliae Rubyschatz
Skimmia japonica subsp. Japonica Rubinetta
Aster frikartii 'Monch'
Aster novae algliae 'Rubyschatz' (Michaelmas Daisy)

Pulmonaria Cotton CoolRudbeckia herbstfrudeRudbeckia fulgida var. Deamii
Pulmonaria 'Cotton Wool'
Rudbeckia herbstfrude
Rudbeckia fulgida var. Deamii


14th

Astrantia - Iris pallida argentea variegataAstratia major Ruby Wedding
Astrantia - Iris pallida argentea 'Variegata'
Astrantia major 'Ruby Wedding'


15th

Actaea James ComptonHakonechloa macra 'Aureola'Hebe pimelioides Quicksilver
Actaea James Compton
Hakonechloa macra 'Aureola'
Hebe pimelioides 'Quicksilver'


16th

berberis aristataHelenium Riverton GemHelianthus Lemon Queen
Berberis aristata
Helenium 'Riverton Gem'
Helianthus 'Lemon Queen'


17th

Hydrangea Paniculata Burgundy LaceHydrangea paniculata FloribundaLythrum virgatum Dropmore Purple
Hydrangea paniculata 'Burgundy Lace'
Hydrangea paniculata 'Floribunda'
Lythrum virgatum 'Dropmore Purple'


18th

Stipa Giganteum - Giant Golden OatSuccisella inflexa 'Frosted Pearls'
Stipa Gigantea - The Giant Golden Oat
Succisella inflexa 'Frosted Pearls'


19th

Tradescanthia andersonia group 'Concord Grape'Tricyrtis formosana hirtaTricyrtis formosana Stolonifera
Tradescantia andersonia group 'Concord Grape'
Tricyrtis formosana hirta
Tricyrtis formosana 'Stolonifera'


20th

Verbena bonariensisVerbena bonariensis and Cortadera selloana
Verbena bonariensis
Verbena bonariensis and Cortadera selloana - Planting association idea


21st

Yucca gloriosa VariegataYucca filamentosa 'Bright EdgeYucca glauca
Yucca gloriosa Variegata
Yucca filamentosa 'Bright Edge'
Yucca glauca


22nd


23rd


24th


25th

Sedum telephium 'Atropurpureum'Sedum spectabile BrilliantSedum spectabile Stardust'
Sedum telephium 'Atropurpureum'
Sedum spectabile 'Brilliant'
Sedum spectabile 'Stardust'

Sedum spectabilis 'Herbstfreude'Sedum 'Xenox'Sedum 'Karlfunkelstien'
Sedum spectabilis 'Herbstfreude'
Sedum 'Xenox'
Sedum 'Karlfunkelstien'


26th

Sedum Red CauliSedum spectabile 'Brilliant'Sedum telephium Atropurpura 'Xenox'
Sedum 'Red Cauli'
Sedum spectabile 'Brilliant'
Sedum telephium Atropurpura 'Xenox'

Sedum telephium 'Matrona'Sedum spectabile 'Variegatum'
Sedum telephium 'Matrona'
Sedum spectabile 'Variegatum'


27th

Skimmia japonica subsp japonica ReevesianumSkimmia japonica 'Wakehurst White'Sorbus huphensis var Obtusa
Skimmia japonica subsp japonica 'Reevesianum'
Skimmia japonica 'Wakehurst White'
Sorbus huphensis var Obtusa 03


28th

Saxifraga fortunei 'Rubrifolia'Schizostylis coccinea MajorSchizostylis coccinea 'Sunrise'
Saxifraga fortunei 'Rubrifolia'
Schizostylis coccinea 'Major'
Schizostylis coccinea 'Sunrise'


29th

Colcicum autumnale - the Autumn flowering crocusColchicum BeaconsfieldColchicum bivonae
Colchicum autumnale  - Autumn Crocus or Naked Ladies
Colchicum 'Beaconsfield'
Colchicum bivonae

How to grow Colchicum

Colchicum Glory of HeemstedeColchicum speciosumColchicum Water Lily
Colchicum 'Glory of Heemstede'
Colchicum speciosum
Colchicum 'Water Lily'

Colchicum speciosum full plant
Colchicum speciosum


30th

Monarda didyma - PinkMonarda 'Violet Queen'Cercis canadensis Forest Pansy - Autumn foliage
Monarda didyma - Pink Bergamot
Monarda 'Violet Queen'
Cercis canadensis Forest Pansy - Autumn foliage after a summer of purple leaves - not bad!

Clematis Madame Edouard Andre
Clematis Madame 'Edouard Andre'


September in the Garden



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