What flowers are in season for your Ontario wedding? A month-by-month guide
Choosing wedding flowers is easier when you begin with the season rather than one exact variety. On an Ontario flower farm, spring starts with tulips and ranunculus, early summer brings peonies and sweet peas, and late summer rolls into dahlias and zinnias.
That changing rhythm is part of the beauty. Seasonal flowers feel connected to your date and place. Choose a colour palette and overall feeling, then let the strongest flowers in the field bring the movement and details.
A note about timing
The guide below reflects flowers typically grown on our Campbellford farm. Exact bloom dates can move earlier or later with the weather, and no single variety can be guaranteed. Think of each month as inspiration for the character of your flowers—not a fixed catalogue.
May wedding flowers: fresh, romantic and full of movement
May begins our outdoor wedding-flower season. The stems are graceful, the petals are soft and arrangements feel naturally airy. Specialty tulips are the stars: they may be ruffled, fringed, double-petalled or almost peony-like. Ranunculus and butterfly ranunculus add delicate layers, orlaya brings lacy texture, and cress adds a fresh green accent.
May suits romantic garden weddings and modern designs built around sculptural stems. Blush, cream, soft peach and fresh green feel natural, but tulips can also carry stronger colour. Because spring timing shifts with the weather, build your vision around softness and shape rather than one must-have variety.
Typically available: specialty tulips, ranunculus, butterfly ranunculus, orlaya and cress.
June wedding flowers: peony season and soft garden abundance
June is loved for peonies, and for good reason. Their full shape can give bouquets and table flowers an instantly lush, romantic look. Ontario peonies generally bloom from late May through June, but their window is short, so flexibility still matters. June also offers beautiful supporting flowers: iris for sculptural lines, sweet peas for delicate movement, foxglove and delphinium for height, and nigella, yarrow, agrostemma, bachelor’s buttons, calendula, phlox and dill flower for airy texture.
June works especially well for soft garden palettes: blush, ivory and lavender; pale blue with white and green; or peach with butter yellow. If peonies are central to your inspiration, share what you love about them—full, romantic and layered—so the design still succeeds if weather changes the harvest week.
Typically available: peonies, iris, ranunculus, agrostemma, bachelor’s buttons, sweet peas, nigella, yarrow, foxglove, delphinium, cosmos, calendula, phlox and dill flower.
July wedding flowers: colourful, relaxed and meadow-inspired
By July, the field begins to feel generous. Cosmos, zinnias, rudbeckia, calendula and marigolds bring cheerful colour; delphinium adds height; and sweet peas, nigella, yarrow, feverfew, phlox and dill flower soften the edges.
Amaranth and basket flower can add depth and personality. This mix makes July especially versatile for DIY flower buckets because there is a natural range of focal blooms, supporting flowers and fine texture.
A July palette can be quietly romantic or joyfully bright. Combine blush, apricot, pale yellow and white for softness, or choose coral, raspberry, orange and gold. Meadow-inspired arrangements need breathing room, so let stems sit at different heights rather than forcing every bloom into a perfect dome.
Typically available: agrostemma, bachelor’s buttons, calendula, rudbeckia, sweet peas, nigella, yarrow, feverfew, delphinium, cosmos, zinnias, amaranth, marigolds, basket flower, phlox and dill flower.
August wedding flowers: dahlias, depth and peak-summer colour
August brings the rich, textural flowers many couples picture when they imagine a local flower-farm wedding.
Dahlias begin to take centre stage, with lisianthus offering a softer, rose-like form. Cosmos and lace flower keep arrangements light, while zinnias, marigolds, rudbeckia and coneflower add confident colour. Amaranth, feverfew, phlox, feathertop grass and Japanese anemones create movement and contrast.
August welcomes saturated palettes: raspberry and wine, terracotta and apricot, or golden yellow with plum. It can also feel delicate; cream, blush and soft mauve stay light beside airy foliage. If you love dahlias, describe the scale and colour you want rather than relying on a named cultivar; the field will decide which varieties are strongest that week.
Typically available: dahlias, lisianthus, cosmos, zinnias, marigolds, lace flower, amaranth, feverfew, rudbeckia, feathertop grass, phlox, coneflower and Japanese anemones.
September wedding flowers: late-summer beauty with autumn depth
September sits beautifully between seasons. Dahlias, lisianthus, cosmos and zinnias can still provide the colour and movement of summer, while amaranth, rudbeckia, marigolds, feathertop grass and coneflower introduce richer texture. Phlox, lace flower, feverfew and Japanese anemones keep the mix from feeling heavy. The result can look romantic, natural and unmistakably tied to early fall.
You do not have to choose orange because your wedding is in September. Dusty rose, mauve, cream and burgundy feel seasonal without becoming themed. So do plum, peach and soft gold, or white and green warmed with caramel. One deeper note can anchor the lighter flowers.
Typically available: dahlias, lisianthus, cosmos, zinnias, marigolds, lace flower, amaranth, feverfew, rudbeckia, feathertop grass, phlox, coneflower and Japanese anemones.
October wedding flowers: textural, expressive and weather-led
October can be spectacular, but it asks for the most flexibility. Many late-season flowers—especially dahlias continue until frost, and one cold night can change availability. Focus on colour, texture and mood rather than a fixed recipe. Dahlias, lisianthus, cosmos, zinnias, marigolds, amaranth, rudbeckia and Japanese anemones create character; feathertop grass, coneflower, phlox, lace flower and feverfew add movement.
October palettes can lean warm with rust, ochre, burgundy and cream, or feel modern with plum, mauve, soft peach and brown-green foliage. Seed heads, grasses and naturally changing textures belong in the design; they make the flowers feel intentional and seasonal rather than like a summer arrangement placed in a fall setting.
Typically available before hard frost: dahlias, lisianthus, cosmos, zinnias, marigolds, lace flower, amaranth, feverfew, rudbeckia, feathertop grass, phlox, coneflower and Japanese anemones.
How to choose a wedding palette around seasonality
A seasonal palette gives you direction without boxing the farm into a promise the weather may not keep. Use these simple decisions to create a clear brief:
• Choose a feeling first. Words such as airy, romantic, joyful, meadow-like, refined or moody communicate more than a long list of flower names.
• Pick two or three anchor colours. Add one neutral and allow lighter or deeper shades of the same colours. The variation makes local flowers feel cohesive rather than overly matched.
• Mix flower shapes. Combine a focal bloom with airy filler, vertical stems and a little texture. Variety of form is what gives garden-style arrangements movement.
• Name your non-negotiables carefully. If one colour matters most, say so. If a certain flower is only inspiration, explain what you love about it so a seasonal alternative can create the same effect.
• Plan for substitution. Agree in advance that weather-led changes are acceptable within your palette and overall style. That flexibility protects the look of the whole design.
Frequently asked questions about seasonal Ontario wedding flowers
Can I guarantee one exact flower for my wedding?
Locally grown flowers are weather-dependent, so exact varieties are rarely guaranteed. Share your preferred colour, shape and mood. If a favourite matters, ask early and agree on a seasonal substitute.
When are peonies in season in Ontario?
Peonies typically bloom from late May through June in Ontario, depending on spring temperatures and location. Their season is brief, so confirm availability even for a June wedding.
When are dahlias in season in Ontario?
Dahlias are typically available from August into October. They continue until frost, so later October dates require more flexibility.
Are seasonal flowers only suited to rustic weddings?
Not at all. Farm-grown flowers can look meadow-like, refined, modern or romantic. Colour, spacing, vessels and the balance of flower shapes determine the style.
Can I use seasonal flowers for DIY wedding arrangements?
Yes. DIY buckets are well suited to centrepieces, bud vases, welcome tables and other arrangements where natural variation adds charm. If you prefer professional help with the most photographed pieces, you can combine DIY buckets with designed bouquets, boutonnieres, corsages or ready-to-display arrangements.
How early should I book my wedding flowers?
Book once your date, general palette and venue are settled. This gives the farm time to understand your needs and reserve space, while the final flower mix follows the season.
Plan flowers that feel like your wedding month
Seasonal wedding flowers are a snapshot of the farm at one moment—fresh, expressive and connected to your date. Start with the colours and feeling you love, then let the season bring the details.
DIY Flowers Co grows and designs wedding flowers in Campbellford, Ontario, serving Peterborough, Belleville, Prince Edward County, Kawartha Lakes, Kingston and surrounding areas.
Choose DIY flower buckets, professionally designed personal flowers, ready-to-display arrangements, or a mix that fits your plans. Ready to talk through your wedding month and palette? Book a consultation with DIY Flowers Co.
Plan Your Wedding Flowers with DIY Flowers Co.
Planning your wedding flowers doesn't have to be complicated or expensive. At DIY Flowers Co., you can combine farm-grown seasonal flower buckets with professionally arranged bouquets and arrangements to create flowers that suit your style and budget.
Explore our Wedding Flower Budget & Consultation Form to see how different combinations can work for your celebration.