September is one of those special months – no matter how old you are, the new school year can feel like a new start. Despite Autumn being on its way, British flowers are continuing to bloom and are still abundant. Dahlias, Sunflowers, Zinnias, Phlox, Cosmos, Asters, Scabiosa and Roses are all in season and available from flower farms. We have a long way to go before our beautiful seasonal flowers are more widely available in supermarkets (I’ve made it my personal mission to change this – and please subscribe to my email here if you would like to support me in this) but there are still some beautiful flower markets and shows across the country that we’d love to shine a light on.

Where to buy British grown flowers this September

Cut Flower Markets

Pollen Inner-City Flower Market – Sheffield
Pollen. Inner-City Flower Market is a monthly celebration of all things botanical, held on the 3rd Sunday in the month. Their next market is on Sunday 21st September 10AM-4PM and marks their 4th birthday where they’ll bring together local growers, indie florists, makers and plant lovers, all in the heart of Sheffield at the award-winning Grey-to-Green corridor. British flower farmers there includes our friends at The Gatherer Florist and Giddy Kippers Plants. For further information on the market, see here.

Chiswick Flower Market – London
Chiswick Flower Market takes place on Sunday 7th September 2025 9am to 4pm on Old Market Place, Chiswick High Road, London, W4 2DR. The entrance to the market is on Linden Gardens (next to Chateau). Chiswick Flower Market was set up in 2020 and was the first new flower market in London for 150 years! Today, almost all the flowers at Chiswick Flower Market are grown here in the UK and British flower growers/farmers there on the 7th include Stevens of Sibsey, Le Jardin De Fleur, Hook Heath Farm, Bellers Blooms, Dahlia Beach, Holmbush Flowers Ltd, Ivy Primrose, Jazzy Rose Flowers.

The Homegrown Market – West Sussex
The Homegrown Markets September rural Midweek Market is on Thursday 25th September at Chapel Barn, Bolney, RH17 5NE. Open from 9-10am for Trade & 10am-1pm for the general Public it brings together cut flowers from growers all over Sussex. As well as buckets and buckets of freshly cut flowers, plants and garden seedlings are also for sale. You can buy tickets here.

Pick Your Own

Lincolnshire Flower Company in Aubourn (LN5) are holding a number of PYO sessions in September (6,7,13,14,20 ,27th) from 10am-12pm. Tickets must be booked. Ella’s Flower Farm in Wimborne St Giles, Dorset (BH21) offers PYO every Sunday in September at 10am or 2pm. Booking essential. Blooming Green in Maidstone, Kent (ME17) offer PYO on Saturdays (hourly slots from 10am last slot at 1pm in September) until the end of September. Booking essential. The Flower Belt in Helmsley, Yorkshire (YO62) offers PYO in its wildflower field and soon pumpkins.

Flower Shows in September

Harrogate Flower Show
Harrogate Autumn Flower Show is being held at Newby Hall & Gardens, Harrogate on 19 – 21 September 2025. As well as the Grand Floral Pavilion there are also Rooms for Blooms in Newby Hall where wonderful indoor floral installations, inspired by the interiors of this beautiful 18th Century house celebrity florist Jonathan Moseley and his team. If you are thinking of going, book here.

RHS Wisley Flower Show
Visit RHS Wisley (Near Guildford, Surrey) for a late-summer floral celebration at the RHS Wisley Flower Show from 2 – 7 September. If you love Dahlias – then come to the National Dahlia Society Show’s marquee and delight in some of the many forms and colours of dahlias, with more than 100 competition classes to see. Confusingly this is not an official RHS Show but a Garden show so no Monty Don or Adam Frost level talks but there will be talks and demonstrations on the day. Normal garden admission applies. Free to RHS Members – no booking required. For further details, check here.

RHS Malvern Autumn Show
An official RHS show, the RHS Malvern Autumn Show on in Malvern, Worcestershire from 26 – 28 September 2025 9am-6pm. Celebrating country living the show includes RHS Flower Show inside the Floral Marquee. Speakers include Monty Don (Saturday), Adam Frost (Sunday), Manoj Malde (Saturday) and Jonathan Moseley (Fri, Sat & Sun). Further details and to book see here.

Flower Festivals

Strawberry Hill House House Flower Festival
I’m excited to be attending the Strawberry Hill House Flower Festival in SW London on 12-14 September, 9am-5pm. The UK’s most sustainable flower festival returns this September, transforming Strawberry Hill House & Garden into a magical realm where imagination runs wild. For one weekend, The Faery Tale Castle will burst into bloom, as over 50 of the UK’s pioneering floral artists conjure up spellbinding displays inspired by folklore and faery legends. Using only homegrown British flowers and sustainable techniques – free from floral foam and single-use plastics – they’ll weave nature’s untamed beauty into every corner of this gothic masterpiece. Guest curated by botanical artist Gaia Eros, with co-curator Leigh Chappell, this year’s festival also includes workshops and I can’t wait for the Floral Arrangement & Photography Workshop with Leigh Chappell & Janne Ford on the Saturday. Numbers are limited so advance booking is essential.

Fleurs de Villes: Downton Abbey at Kew Gardens
If like me, you are looking forward to seeing the new Downton Abbey film, Downton Abbey: The Grand Finale which will be released in cinemas on Friday 12th September 2025, then you must visit the Fleurs de Villes: Downton Abbey at Kew Gardens. A fresh floral celebration inspired by Downton Abbey and created by London’s talented floral artists it includes a stunning collection of Fleurs de Villes’ famous fresh floral mannequins and other beautiful Downton-inspired floral creations. Running from 22 September to 1 October 2025, full details can be found here.

Southwold Flower Company Harvest Festival

Southwold Flower Company in Suffolk are holding their inaugural Harvest Festival on Saturday 20 September. As well as PYO flowers, they will be launching their brand new Pick-Your-Own ‘MINI’ PUMPKINS Patch and new ‘autumn mini pop in workshops’ including create your own mini Dutch house arrangement and the The Bulb Bar – select your autumn tulips & narcissus for your spring garden. For full details see here.

Words by Elizabeth Honey; find out more about Honey & Fleur here: https://www.instagram.com/honeyandfleuruk/