September Flowers: Birth Flowers, Seasonal Picks & Bouquets

September marks the transition from late summer to early fall in Ontario, bringing a mix of bright blooms and warmer autumn colours. Flowers in season in September may include chrysanthemums, dahlias, asters, sunflowers and zinnias, depending on local growing conditions, weather and florist supply. Roses are also a popular option through florist collections, although they are not necessarily locally grown.

Whether you're celebrating a September birthday, anniversary or wedding, understanding the month's seasonal flowers can help you choose an arrangement that suits the recipient and occasion.

What Are the September Birth Flowers?

September has two commonly recognized birth flowers: asters and morning glories. Both have traditional associations with the month, although their suitability for cut-flower arrangements differs.

Asters — The September Birth Flower

Asters are known for their star-shaped blooms, often appearing in shades of purple, pink, blue and white. They are traditionally associated with love, wisdom and affection, making them a meaningful choice for September birthdays.

Certain asters bloom during late summer and early fall in Ontario. When suitable varieties are available through a florist, they can add delicate texture to mixed arrangements.

Purple asters pair especially well with white roses, dahlias and soft greenery.

Morning Glories — September's Second Birth Flower

Morning glories are recognized for their trumpet-shaped flowers, which often open in the morning and close later in the day. They are traditionally associated with affection and the passing of time.

Although morning glories are a symbolic September birth flower, they are primarily enjoyed as garden plants. Their delicate blooms are not routinely stocked for conventional cut-flower bouquets.

For a September birthday, an arrangement featuring asters or another available seasonal flower can be a more practical way to acknowledge the birth-flower tradition.

Flowers in Season in September in Ontario

September flowers reflect the changing seasons. Late-summer blooms may continue flowering while autumn varieties begin appearing in gardens and floral designs.

The following flowers are worth considering, although exact availability depends on the weather, growing region and florist's current supply.

Chrysanthemums

Chrysanthemums, often called mums, are strongly associated with early fall. Their layered blooms come in yellow, white, pink, orange, burgundy and other colours.

They work well in mixed autumn bouquets, compact arrangements and seasonal centrepieces. Some types are grown primarily for garden displays, while others are suitable as cut flowers.

Dahlias

Dahlias are among the distinctive flowers associated with late summer and September. Their layered petals and varied shapes make them a natural focal point in an arrangement.

In Ontario, locally grown dahlias may remain available through September, depending on growing conditions and the first frost.

For birthday celebrations, anniversaries or seasonal gifts, dahlias can be paired with roses, asters or complementary greenery. Explore the dahlia bouquet collection for arrangement ideas.

Asters

Asters add smaller, star-shaped blooms to seasonal designs. Purple and pink varieties can complement dahlias or chrysanthemums, while white asters offer contrast in mixed arrangements.

Their association with September birthdays makes them especially relevant to this month's flower guide. Availability and suitability for cut-flower use vary by variety.

Sunflowers

Sunflowers bring bright yellow and golden tones to September bouquets. Depending on the growing season and florist supply, they may continue appearing in Ontario arrangements during early fall.

They pair well with burgundy dahlias, orange flowers and greenery. Their cheerful appearance makes them suitable for birthdays, thank-you gifts and casual celebrations.

Roses

Roses remain a versatile choice for September arrangements. Red rose bouquets suit romantic occasions, while pink, cream, peach and mixed-colour roses can work for birthdays and everyday gifts.

Unlike flowers with a more limited local growing season, roses may be sourced through florist supply networks throughout the year.

Other Late-Summer and Early-Fall Flowers

Several additional flowers can add variety to September floral designs:

• Zinnias: Bright garden-style flowers that may continue blooming into September.
• Celosia: Distinctive textured blooms that add height or visual contrast.
• Marigolds: Orange and golden flowers that work with autumn-inspired colour palettes.
• Sedum: Clusters of small flowers that add texture to seasonal arrangements.
• Cosmos: Light, delicate blooms that may be available from local growers during favourable conditions.

These varieties are not necessarily stocked by every florist. For more general autumn colour and presentation ideas, explore Toy Florist's fall flower arrangements.

September Flower Arrangements

September flower arrangements can combine the brighter colours of late summer with the warmer tones associated with fall. Dahlias, chrysanthemums, asters, roses and greenery allow for different combinations of colour, shape and texture.

The presentation is just as important as the flowers themselves.

Wrapped bouquets are a flexible choice for birthdays, anniversaries and personal gifts. They allow the recipient to arrange the flowers in their own vase.

Vase arrangements offer a more ready-to-display presentation and may be convenient for home or office gifts when a container is included. Compare the available floral vase arrangements and check individual product details.

Fuller seasonal designs can include multiple flower varieties, textured foliage and warm autumn colours. These arrangements can work as larger gifts or decorative centrepieces.

For a softer September look, consider cream, blush and pale pink flowers. Burgundy, orange, yellow and gold create a stronger autumn-inspired palette.

September Birthday Flowers

A September birthday bouquet can reference the month's traditional birth flowers or simply reflect the recipient's favourite colours.

Asters are a meaningful option when available, while dahlias, roses and sunflowers can create different moods.

For someone who enjoys cheerful colours, yellow sunflowers with complementary mixed blooms may be suitable. Pink roses and cream flowers offer a gentler look, while burgundy dahlias can create a more dramatic arrangement.

The recipient's preferences matter more than following a fixed birth-flower tradition.

For additional celebration styles, explore Toy Florist's birthday flower arrangements.

September Anniversary Flowers

Roses, dahlias and lilies can all be considered for September anniversaries, depending on personal preferences and availability.

Roses remain a classic romantic choice, especially when selected in a colour meaningful to the couple. Dahlias add fullness and texture, while lilies may suit someone who enjoys their shape and fragrance.

A September anniversary bouquet does not need to use only traditional autumn colours. Blush, ivory and peach arrangements can feel just as appropriate as burgundy or deep red designs.

For a wider selection of styles, browse anniversary flower bouquets.

September Wedding Flowers

September weddings offer opportunities to work with late-summer flowers and early-autumn colour palettes. Dahlias, roses, chrysanthemums, hydrangeas and seasonal greenery may all be considered when planning floral designs.

For bridal bouquets, dahlias and roses can create a full, romantic arrangement. Cream and blush colours suit a softer look, while burgundy and peach offer more autumn-inspired contrast.

For reception tables, chrysanthemums, seasonal foliage and lower arrangements can provide colour without obstructing conversation.

Sunflowers can also suit casual outdoor celebrations or garden-inspired wedding designs.

Flower selection should be confirmed with the florist before finalizing an event design. Local growing conditions, supplier availability and venue requirements can affect the options.

Explore the wedding flowers and bridal bouquet collection for further inspiration.

How to Choose September Flowers in Toronto and the GTA

Choosing September flowers in Toronto, Vaughan, North York or elsewhere in the GTA begins with the recipient and the occasion.

Consider these factors before ordering:

• Recipient's preferences: Favourite flowers and colours are often more useful than traditional symbolism.
• Arrangement style: Wrapped bouquets work well as personal gifts, while vase arrangements can be easier to display.
• Seasonal availability: Ontario-grown flowers and imported varieties may have different supply patterns.
• Occasion: A birthday bouquet can be bright and playful, while an anniversary arrangement may use softer or more romantic colours.
• Delivery timing: Check the recipient's address, selected product and available delivery dates before placing an order.

Some arrangements may qualify for same-day flower delivery in eligible GTA areas, but delivery options depend on the product, location, order time and current availability.

Frequently Asked Questions About September Flowers

What flowers are in season in September in Ontario?

Dahlias, chrysanthemums, asters, sunflowers and zinnias are among the flowers associated with September in Ontario. Availability varies with weather, growing conditions and florist supply. Roses may also be offered through year-round floral supply networks.

What are the two September birth flowers?

Aster and morning glory are the two commonly recognized September birth flowers. Asters are sometimes suitable for cut-flower arrangements, while morning glories are primarily garden flowers and are not commonly sold in florist bouquets.

Are dahlias available in September?

Dahlias often bloom during September in Ontario and may remain available until frost affects outdoor production. Availability through a florist depends on current sourcing, growing conditions and the selected arrangement.

What flowers are suitable for a September birthday bouquet?

Asters, dahlias, roses, chrysanthemums and sunflowers can all suit a September birthday. Choose the combination based on the recipient's favourite colours, preferred style and current flower availability.

Celebrate September with Seasonal Flowers

September brings together the bright character of late summer and the changing colours of early fall. From traditional birth flowers such as asters to dahlias, chrysanthemums and roses, there are many ways to create a thoughtful arrangement.

Whether you're celebrating a birthday, anniversary, wedding or personal milestone, the right flowers are the ones that suit the recipient, occasion and season.

At Toy Florist, explore floral designs for delivery in Toronto and eligible GTA communities, and check the current selection for September-inspired arrangements.