Flower calendar · September
September flowers: the month of yellow flowers
September is the month of the biggest trend in the calendar: yellow flowers on the 21st. It also brings Amor y Amistad in Colombia and spring to the whole southern hemisphere.

- Big date
- September 21yellow flowers
- In Colombia
- Amor y Amistad3rd Saturday of September
- In season in Spain
- Dahlia and sunflowerchrysanthemums start
- In season in the Southern Cone
- Freesia and tulipspring arrives
Dates for giving flowers in September
| Date | What is celebrated and why | Flower | Color | Where |
|---|---|---|---|---|
| 3rd Saturday of September | Amor y Amistad (Love and Friendship Day) Colombia has celebrated its own Valentine’s Day in September since the 1960s. It is for partners and friends alike, secret Santa included. | Roses and sunflowers | Red | Colombia |
| every year | Yellow flowers In Floricienta, the 2004 Argentine series, the heroine dreams of someone giving her yellow flowers. In September 2021 TikTok revived the song to welcome spring in the southern hemisphere, and the trend hasn’t stopped since. | Sunflowers, tulips or yellow roses | Yellow | All of Latin America · it started in Argentina, Chile, Peru and Uruguay |
September 21 is yellow flowers day: in Floricienta, the 2004 Argentine series, the heroine dreamed of someone giving her yellow flowers, and in 2021 TikTok turned the song into a tradition to welcome spring in the southern hemisphere. Today it is one of the busiest weeks for flower shops across Latin America, and increasingly in Spain too. Social media also shares the chain of the 22nd, 23rd and 24th for cousins, mothers and best friends.
In Colombia, the third Saturday of the month is Amor y Amistad, its Valentine’s Day, with roses, sunflowers and secret friend. Other dates by country:
- September 11: Teachers’ Day in Argentina, in honor of Sarmiento.
- September 21: Spring Day and Students’ Day in Argentina.
- September 22: Teachers’ Day in Uruguay.
Flowers in season in September
| Month | Spain | Mexico and Central America | Argentina, Chile and Uruguay |
|---|---|---|---|
| September | dahlia, sunflower, rose, aster, chrysanthemum, hydrangea | dahlia, sunflower, cempasúchil (from late in the month), gerbera, rose | freesia, tulip, ranunculus, daffodil, lilac, sunflower (greenhouse) |
In Colombia, Ecuador and the Andes, the high-altitude climate lets growers produce roses, carnations, chrysanthemums, alstroemerias and hydrangeas all year round: that is why they are two of the world’s largest flower exporters. This table is a guide: the season changes with the area and the year, and greenhouses extend almost all of them.
In Spain summer says goodbye with dahlias, sunflowers, asters and a second bloom of roses; at the end of the month the first chrysanthemums appear. In Mexico dahlias and sunflowers carry on, and at the end of the month the cempasúchil fields begin. In Argentina, Chile and Uruguay spring arrives: fragrant freesias, tulips, ranunculus, daffodils and lilacs. The sunflowers for the 21st, however, still come from greenhouses.
What to give in September
- September 21: sunflowers (a single one is already a bouquet), tulips or yellow roses; or a mixed bouquet where yellow rules.
- Amor y Amistad: red roses for your partner; sunflowers or yellow flowers for friends.
- For your teacher in Argentina or Uruguay: a flower or a small bunch with a note.
- To welcome spring in the south: freesias or tulips.
Tips for the month
If you’re giving sunflowers on the 21st, order them three or four days ahead: on the day itself they sell out or go up in price. Find a tall, heavy vase, because the heads are very heavy, and change the water often: sunflowers drink a lot.
And right after comes October, with Boyfriend Day on October 3, the answer to yellow flowers: blue flowers or a Hot Wheels bouquet.
Remind me 3 days before
Download the reminder and open it with your phone’s calendar: it repeats every year and alerts you three days before, so you have time to order the bouquet.
Frequently asked questions
Which flowers are given on September 21?
Yellow flowers: sunflowers, tulips or yellow roses. It is the trend that was born with the Floricienta song and went viral on TikTok in 2021.
Which flowers are given on September 22, 23 and 24?
According to the viral chain, on the 22nd flowers for cousins or aunts, on the 23rd for mom or grandma and on the 24th for your best friend. It isn’t as established as the 21st.
When is Amor y Amistad in Colombia?
On the third Saturday of September. People give roses, sunflowers and small gifts to their partner and friends, secret friend game included.
Which flowers are in season in September?
In Spain, dahlias, sunflowers, second-bloom roses, asters and the first chrysanthemums. In Mexico, dahlias and the first cempasúchil. In the Southern Cone, freesias, tulips, ranunculus and lilacs.
Why do sunflowers sell out in September?
Because on September 21 everyone looks for them at once, and in the southern hemisphere it isn’t their natural season yet. Order several days ahead.




