Creating a cut flower garden

Forget me nots, cow parsley, wild allium, mint, honeysuckle, aquilegia, white flowering dead nettles and red clover.

I tour garden clubs in the East Midlands giving inspiration for growing cut flowers at home. An hour’s talk is only long enough to give a flavour of the subject. Here are some notes to accompany my talks.

Chose a backbone of useful shrubs:

Dogwoods:

Cornus Westonbirt.

Cornus Westonbirt has the brightest red stems in winter. Only a few stems are needed to add a vertical element to flower arrangements. To get the brightest stems, cut the shrubs back to 20cm in March. New stems will grow back strongly.

An autumn bouquet with just three stems of dogwood.

Physocarpus Diabolo:

A beautiful backbone shrub, growing to 8ft. Comes into leaf early in spring. Produces pretty pinkish white flowers. Flowers then produce interesting seed heads. good strong stems for floristry and a lovely dark colour to set off all flower colours. I grow mine on a north-facing border directly in front of a hawthorn hedge. Copes with dry soil and semi-shade.

Physocarpus seed heads

Viburnum Eve Price

The pink flat heads are viburnum Eve Price. Surrounded by ivy, gypsophila, rosehips. Euonymus, and Rosa The Fairy.

Viburnum Eve Price flowers all winter. It has evergreen leaves and is tough and hardy.

Plant Roses:

Timeless Cream

Timeless Cream and Timeless Purple are part of the new home florists’ range . Few thorns and wonderful scent.

Timeless Purple

Grow a patch of wildflowers:

I have a bed 3m long by 1.2m wide with paths surrounding it. Grown from a packet of wild flower seeds (Mr Fothergill’s or Sarah Raven). The plants that emerged included white oxeye daisy, blue cranesbill geranium, pink campion. These come back every year. The grasses grow in a strip along the edge of the lawn. Quaking grass is particularly lovely.

More perennial plants: Grow white argyranthemums.

Argyranthemums with ammi, verbascum and rudbeckias.

Argyranthemum or shasta daisies grow to 70cm and can be grown in a garden border in full sun. They need dividing every three years and will need staking. They provide flowers from June to September. Most garden centres sell these plants.

Annuals to grow for cut flowers :

Sweet Peas:

Wiltshire Ripple

Sow Sweet Peas in October in long root trainers with 50 percent compost and 50 percent grit for drainage. Place the pots inside a clear plastic storage box to protect from mice and the weather. Storage boxes can be brought indoors and stacked up like a mini greenhouse if the temperatures go below freezing. Lids can be removed in good weather. Do not allow seedlings to get too wet over winter. Plant out in good soil in April.

An A-Frame structure made from hazel poles purchased from farm fencing suppliers. These are used as binders in hedge laying. Ammi, gladioli and cosmos are planted down the middle. Calendula on the outsides.

Locally, Musson Fencing sell bundles of hazel rods in winter and early spring. They sell out quickly so it’s best to order your supplies.

https://www.davidmussonfencing.com/

Alternatively, Rutland Willows make bespoke willow and hazel supports and frames and run courses to make your own. We have had many hurdle fences and supports from them and have been very happy with everything.

https://www.rutlandwillows.com/

Sweetpea High Scent

At this time of the year (mid-May at the time of writing) I would probably buy in pre-grown plants from Easton Walled Gardens. A good excuse to visit them and have a walk around the beautiful cut flower gardens and landscape. Order your seed now to be delivered in late summer for October planting.

Annuals:Calendulas.

Calendula Snow Princess

Sow calendulas in autumn and overwinter them in pots in a greenhouse. Or sow now. Use plug plant trays, one seed per cell. Use seed compost with 50 percent vermiculite. Cover seed with vermiculite. This helps with drainage. Most seed sowing failures are due to watering – either over or under watering. A soggy compost is death to seedlings. Better to be on the dry side that too wet.

A note about compost: I use peat-free Melcourt seed compost and I add vermiculite, or horticultural sand whichever I have to hand. I don’t use multi-purpose compost for seed sowing. It contains fertiliser which burns delicate seedling roots. I move plants on quickly, water with seaweed extract every time I water and get plants in the ground or into big pots as soon as possible.

Tips on seed sowing:

Use spotlessly clean pots and seed trays.

Warm the compost in the greenhouse before using. Or bring indoors. Never use cold, wet, soggy compost – especially old compost from the bottom of pallets at garden centres.

Read the back of the seed packets for information such as whether to cover the seeds or not. Also follow germination temperatures and time to sow guidelines.

Use fresh seed. Home-saved seed is always likely to germinate faster than bought seed.

Buy seed from the best companies – Mr Fothergills, Chiltern Seeds, Higgledy Seeds. Do not buy from garden centres where seed will have been too hot, too old, or might have got wet. Best to buy mail order.

Water with a fine rose so as not to disturb the seeds. Always use tap water as water barrels contain pathogens which might cause seeds to wilt and die.

Protect new seedlings from too much sunlight. They are like babies.

Sow very thinly to prevent damping off. Make sure you ventilate the greenhouse in hot weather also to prevent mould and damping off problems.

Only sow half a packet at a time. If that fails for any reason, you’ve got a second chance with the other half of the seeds.

Always harden off plants before planting outside. This takes about seven days and involves bringing the plants in at night be putting them out in the day.

Soil Improvers:

We use and highly recommend PlantGrow fertiliser and mulch. There’s also a liquid feed which I use on established plants needing a boost. The 10 percent discount code for blog readers is bramble10. I’m not paid to recommend them, but I do like to support family companies and this one is based in Norfolk.

More annuals: Cosmos:

Cosmos Psyche White.

Cosmos should be started early as it needs a long growing season. It’s best to start seeds in February in a heated propagator at 18C. Most garden centres are selling pre-grown plants now. Sarah Raven sells small plants in spring. It’s safe to plant them out in the first week of June. They will flower until first frosts. My tip is to grow just a few but grow them really well. Pinch out the tips to make them bushy when they are about 4” tall. Support them with canes and tie them in well as they rock about in windy weather.

Cosmos Apricot Lemonade.
Cosmos Seashells Pink
Seashells White

More Annuals: Sunflowers

Sunflower cut flower mix from Mr Fothergill

Sunflowers can be sown in April and May. Earth Walker and Velvet Queen are good varieties. Look out for the multi-headed dwarf sunflowers. I grow mine amongst the sweetcorn and the vegetables help to hold the sunflowers upright in stormy weather. Calendulas and courgettes are grown at the base.

Velvet Queen

I start seed off in a propagator at 18C. Plants are grown on until they are about 20cm tall. Any smaller and the slugs will eat them. Spray with garlic extract to protect from slugs and snails. The recipe is on the blog in the search bar.

Dahlias:

Dahlia David Howard grown with Alstroemeria Indian Summer.

There’s still time to buy dahlia tubers from the garden centre and pot them up indoors. Take cuttings now to get more plants. Each tuber can provide 7 cuttings without detriment to the mother plant. Cuttings need to be tiny, 2-3cm only and placed in a 9cm pot with the 50/50 compost vermiculite mix in a propagator at 18C. They will readily root and can be planted out the first week of June. Cuttings will flower this year. If buying potted plants, there are some good mail-order nurseries offering stock. Todds Botanics are recommended.

Nuit D’Ete is a lovely cactus-type dahlia.
Dahlias, cosmos and dogwood. Senecio Vira Vira is from Coton Manor nursery.
Protect dahlias from earwigs. Add pots of straw or newspaper to the top of canes. Tip them out each morning.
Dahlia cuttings.
Today’s bouquet.

Don’t forget to just look around the garden and use what you have! I have cow parsley, poppies, alliums, Dutch iris, aquilegia and violas just now. Not many flowers are needed to make a jam jar posy. These were not planted specifically for cut flowers, but taking just a few won’t harm the spring display.

Answering questions from last night’s talk: How do you grow cow parsley?

Chose plug plants from. https://www.naturescape.co.uk/product/cow-parsley/

These won’t compete with lush grass, so use a spade to lift a patch of turf. Plant plug plants into the bare soil. Plant with cranesbill and foxgloves. Plants will die, but will set seeds for next year. Keep the patches free from vigorous grasses. You can plant delicate shaking grass though. If you have a large enough space, I would plant a swathe of them to get the best effect.

Peak cow parsley time in my garden today.

Question 2: What honeysuckle are you growing?

Common honeysuckle, Lonicera periclymenum caprifoliaceae. I recommend Jekka’s Herbs for plants. Wonderful scent and beautiful red berries. Plant with the roots in the shade and it will climb to reach the sun. If you plant the roots in the sun, the plant often succumbs to mildew and aphids. It is a woodland plant, essentially. Its habit is to climb and then flop down. In nature you often see plants dangling from high up in trees. So it is not ideal to try to control it and plant it over an arch or on a trellis. It will always want to go skywards. It wants to use other trees and shrubs as a climbing frame. Be careful when buying honeysuckle as some varieties do not have any scent, which is such a disappointment if you’ve waited several years for the plant to flower!

Question 3. Where can you buy the little wooden and metal stand containing four glass bottles for flower arranging?

My stand came from Jonathan Moseley. He sells floristry materials, flower cutting snips and vases at various flower shows all over the country. He also has an online shop. I use this stand every day and place it down the centre of the kitchen table. Vases can also be arranged in a circle with a pillar candle in the centre. I have created mini posies for this photo, but equally you can just pick a few stems and place them directly in the jam jars and they look ‘arranged.’

All white theme with Italian ranunculus, cow parsley, hyacinth and Lily of the Valley.
Wonderful scent from such a small arrangement.

Don’t forget that cow parsley can be used even when the flowers are going over. The little lime green seed heads are still attractive. I also use seed heads of parsnip, onion, carrot, chives, mustard and leeks. I found out by accident by leaving some vegetables to go to seed. I now leave them on purpose to supply free seed heads for floristry. Fluffy clematis seeds are also saved for winter decorations.

If this has inspired you to grow something for your own cut flowers, then I’m very happy. I’m hosting a cut flower course at Barnsdale in September. It’s a lovely garden and the owners are kind and generous people. There’s a lot included in the price. I can highly recommend the cream tea!

Link : https://shop.barnsdalegardens.co.uk/products/growing-flowers-for-cutting

Thanks for reading my blog. Please leave a comment below if you have any questions and I’ll do my best to answer them. Or e mail at k.gimson @btinternet.com.

Also visit Cathy’s blog for more inspiration:

https://ramblinginthegarden.wordpress.com/2025/05/12/in-a-vase-on-monday-sundae-on-monday/

9 thoughts on “Creating a cut flower garden

  1. My goodness Karen – what a concentration of advice and information, definitely a post to refer back to time and time again, and such a treat for the groups you give talks to, Barnsdale is a garden I enjoy going to again and again, and relatively local – hope the course goes well. Do you have a link for it? Hope you and your Mum are doing OK

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    • Thank you Cathy. All ok. Will send you an e mail today. I’ll add a link to Barnsdale too. Thanks for your kind comments which are always much appreciated.

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  2. Great tips Karen, especially on mulch and feeding. And I’ve learned not to be ashamed to buy things from garden centres. Going on holiday at my birthday time in late April has meant coming back to dead seedlings once too often! Take care. Pam

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    • Very True Pam! There is no shame in catching up and buying in plants. My mum rescued my garden many a time by buying in offers from online seed companies. In fact it got us through quite a few years when I was too ill to sow seeds. I wouldn’t have had anything growing in my garden at that time if we didn’t go for the bargains on offer. Enjoy your garden and keep in touch! Karen

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  3. Karen, How Lovely! and how generous of you to share your time-proven recommendations.

    I admire your sweeet pea growing arrrangements. I need to work out how best locally to get the hazel hedge laying wands. Mussons on Melton Road?

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