The tulips and other spring bulbs in the garden are just coming to an end as we approach mid-May. The warm weather has finally arrived and there are so many flower buds forming in the garden. Biennials such as Honesty, Sweet Williams and Sweet Rocket all come into their own this month. They are invaluable flowers to have in the garden in order to plug the gap between the end of the spring bulbs and the beginning of flowering of hardy annuals. Hardy annuals sown in the spring will start to flower towards the end of this month or early in June, depending upon when you sowed them (and your geographical location).

Sweet Williams
Sweet Williams are highly fragrant and last well in the vase when cut

Many garden perennials also start to flower this month. I have Red Campion which is a great wild flower. It will happily flower in the shade and produces flowers throughout the summer.  Aquilegias provide welcome flowers now and will self-seed throughout the garden. My mixed hedge is a good source of flowers. The tiny white flowers of Hawthorn are known as the May flower and look lovely in the vase. Viburnum oplus has white flowers that look a bit like lace-cap hydrangeas and Viburnum lantana has flat clusters of tiny white flowers. Cut them all just as the buds are opening to last as long as possible and split the stems of these woody plants to help with water uptake.

Hawthorn flowers
Hawthorn flowers with Clematis montana and Red Campion

The first Alliums are just breaking out of their buds and will flower throughout May and June. I love the large fire-work flowers of Allium christophii planted along with the smaller intense purple A. purpureum and  white A. nigrum. The seed heads can be dried for fantastic displays later in the year.

Oxeye daisies can be a bit rampant but seedlings are easily pulled out from the soil if they stray too far. These beautiful daisies make lovely meadow-style arrangements at this time of year and if you cut them down after flowering, they will produce a second flush of flowers in the autumn.

The perennial wallflower Erysimum 'Bowles' Mauve' is a must for any cutting garden as it flowers practically year-round and is the best food source for bees. In the shady part of the border, I have some Tellima grandiflora which has thin spires of tiny green, fringed flowers, hence its common name of 'Fringe cups'. The flowers add some height to a flower arrangement while the fresh green leaves can be cut and used to soften the neck of a vase.

Nigella flower

Nigella (Love-in-a-mist) is another flower that I wouldn't be without and, like many biennials, it self-sows really well. Leave lots to go up to seed and you won't ever have to buy any more seed! It has fabulous looking seed pods that can be collected and used both fresh and dried in displays.

The final buds ripening in my garden are those of my climbing Rose 'Open Arms' which I cut throughout the summer and autumn. I find that it doesn't suffer from the dreaded black spot common in some roses. This year we have planted more climbing roses to scramble through the hedges on either side of the garden. Climbing roses are wonderful for repeat flowering all through the summer.

Workshop flowers
Cut flowers arranged during my first 'Grow your own flowers' workshop

May has also seen the very first pupil through the door for my 'Grow your own flowers' workshop. It was a lovely day and we had fun arranging tulips with foraged Cow Parsley and cuttings from the garden - Forget-me-nots, Euphorbia, Tellima foliage, Erysimum, Hawthorn and Primroses. It's not too late to take a workshop and get started on growing your own this summer!

Jam jar arrangement made by my student Caroline in my first 'Grow your own flowers' workshop
Jam jar arrangement made by my student Caroline during the workshop

Green foliage makes an ideal backdrop against which to display your flowers, mimicking how flowers would grow in the garden. It adds bulk to an arrangement, can tone down bright colours and is a useful framework for supporting your flower stems. I always add my foliage first and thread the flower stems among the foliage 'scaffold' when creating a display.

Herbs and annuals as fillers
Ammi majus and Lemon balm as fillers.

Evergreen foliage

Evergreen foliage is ideal, as there is something to pick all year, but it can be hard in a residential garden to find space to grow shrubs and trees. If you are picking foliage all the time, you may leave your shrubs looking a bit bare, so go gently. I have a large, established Viburnum tinus, which we inherited with the garden, which can take a fair amount of cutting. I love the dark green, glossy foliage but I tend to wait until it produces creamy white flowers in the Autumn before using it. It has a wonderful fragrance to the flowers making it a welcome addition to bring into the house in the dark months of Winter. Other good evergreens include Rosemary, Box and any clippings from hedging plants. Experiment with the existing shrubs that you do have. There is a useful article by My Garden School about the best shrubs for cutting.

Great foliage plants

Herbs provide some of my favourite foliage to use during the Summer. Lemon balm, Borage and Oregano will all keep producing new foliage if you cut them. Once they are looking tired in mid-summer, you can cut the foliage back to the base and they will sprout up again giving you new, fresh foliage to use.

Autumn cut flowers
Ammi and Panicum elegans 'Frosted Explosion' adding bulk to this Autumnal display.


These include plant material, other than foliage, which provide an interesting backdrop to your flowers. Plants to try include the unopened flower buds of annuals such as Helianthus 'Vanilla Ice', Scabious or Cosmos, which all look interesting in bud form. You can try green flowers like Dianthus barbatus 'Green Trick' with its fuzzy, lime-green pom poms, the tiny acid-green flowers of Alchemillla mollis, Euphorbia oblongata, Bupluerum, Fennel or Dill  or other annuals with tiny flowers such as Ammi majus or Ammi visigna. Some flowers, like Cosmos, come complete with their own foliage which you can leave on the stem (provided it is above the water line in the vase - if you leave on foliage below this, the water will quickly spoil, see Conditioning.)

Cow parsley makes great filler material
Cow parsley in May.

Foraged Wild Carrot or Cow parsley are excellent fillers and abundant in the hedgerows. I've grown the grass Panicum elegans 'Frosted Explosion' for the first time this year and I will definitely grow it again. It adds a lovely airy feel to displays. There are lots of interesting grasses you could try such as Briza maxima (quaking grass) and Agrostis nebulosa.

For further inspiration and pictures of all the plants mentioned in this post, visit the Homeflower Pinterest page.