Cosmos Kiiro
You’ll soon fall in love with this apricot-yellow shade.
Cosmos Kiiro blends easily into any bouquet with its colour.
Don’t be shy about cutting—it will reward you with new stems time and again.
1 bag ≈ 1.1 grams ≈ 150 seeds
Specifications
| Suitable as a cut flower | Yes |
| Attacts bees and butterflies | Yes |
| Height Plant | 120 cm |
| Planting time | April-May |
| Flowering time | August-October |
| Planting site | full sun |
| Type of product | Flower seeds |
| Plant depth seeds | 0,5 cm |
| Germination time | 1-2 weeks |
| Growing time to bloom | 10-12 weeks |
Tips
When to sow Cosmos:
- Indoor sowing: From March–April.
- Direct outdoor sowing: From April–May, once all risk of frost has passed.
Sowing method:
- Sowing depth: Sow seeds about 0.5–1 cm deep in well-draining soil.
- Spacing: Keep 30–40 cm between plants for enough room to grow and good air circulation.
- Germination temperature: Between 18–22°C, with germination in 10–21 days.
Location and soil:
- Light: Full sun is ideal for abundant flowering. Cosmos also tolerates light partial shade, though it will bloom less vigorously.
- Soil: Well-drained, moderately fertile soil. Overly rich soil may cause more leaf growth and fewer flowers.
- Fertilize: Cosmos usually flowers more abundantly in normal to slightly poor soil and stays sturdier. It’s best not to fertilize, or only very lightly. If you do feed it, choose a potassium-rich (for flowering) fertilizer later in the season, not a nitrogen-rich one.
Cosmos care:
- Watering: Water regularly, especially during dry periods, but avoid overly wet soil.
- Pinching: When the plant reaches 15–20 cm in height, pinch out the top growth tip to encourage bushier growth.
- Deadheading: Remove faded flowers regularly to prolong blooming and delay seed formation.
- Support: Since cosmos can grow quite tall (up to 1.5 metres), support the stems with mesh or bamboo sticks, especially in windy conditions.
Harvesting and use:
- Cut flowers: Cut blooms just as they begin to open for longest vase life.
- Combining: Pairs beautifully with other summer bloomers like zinnias, calendula, and dahlias for a colourful border.
- Low maintenance: Cosmos is a tough, low-maintenance plant with good drought tolerance.
How many seeds per square metre?
Each packet contains enough seeds for about 1 m² of flowers. This may vary by variety, so take the mature plant size into account. Tip: Don’t sow everything at once. Stagger your sowing to extend the bloom season and have a backup if the first sowing doesn’t go well. One tiny seed can grow into a full plant – give it enough space. Store your seeds in a cool, dry place – they’ll remain viable for 2 to 3 years.
Want more tips on sowing and caring for your flower seeds?
Read the full sowing & planting guide on our blog.
Grow your own happiness with our annual flowers – sow, care, harvest & enjoy!
Our annual flower seeds are of the highest quality – perfect as cut flowers and loved by professional growers. Thanks to their high germination rate, you’ll enjoy a high bloom success. Because these flowers complete their full life cycle – from seed to bloom – in just one season, they’re bursting with growth energy. The result? Months of flower joy! And the best part: for many varieties, the more you pick, the more flowers the plant produces.
Our seeds are untreated and uncoated, making them ideal for growing organic flowers.
When to sow Cosmos:
- Indoor sowing: From March–April.
- Direct outdoor sowing: From April–May, once all risk of frost has passed.
Sowing method:
- Sowing depth: Sow seeds about 0.5–1 cm deep in well-draining soil.
- Spacing: Keep 30–40 cm between plants for enough room to grow and good air circulation.
- Germination temperature: Between 18–22°C, with germination in 10–21 days.
Location and soil:
- Light: Full sun is ideal for abundant flowering. Cosmos also tolerates light partial shade, though it will bloom less vigorously.
- Soil: Well-drained, moderately fertile soil. Overly rich soil may cause more leaf growth and fewer flowers.
- Fertilize: Cosmos usually flowers more abundantly in normal to slightly poor soil and stays sturdier. It’s best not to fertilize, or only very lightly. If you do feed it, choose a potassium-rich (for flowering) fertilizer later in the season, not a nitrogen-rich one.
Cosmos care:
- Watering: Water regularly, especially during dry periods, but avoid overly wet soil.
- Pinching: When the plant reaches 15–20 cm in height, pinch out the top growth tip to encourage bushier growth.
- Deadheading: Remove faded flowers regularly to prolong blooming and delay seed formation.
- Support: Since cosmos can grow quite tall (up to 1.5 metres), support the stems with mesh or bamboo sticks, especially in windy conditions.
Harvesting and use:
- Cut flowers: Cut blooms just as they begin to open for longest vase life.
- Combining: Pairs beautifully with other summer bloomers like zinnias, calendula, and dahlias for a colourful border.
- Low maintenance: Cosmos is a tough, low-maintenance plant with good drought tolerance.
How many seeds per square metre?
Each packet contains enough seeds for about 1 m² of flowers. This may vary by variety, so take the mature plant size into account. Tip: Don’t sow everything at once. Stagger your sowing to extend the bloom season and have a backup if the first sowing doesn’t go well. One tiny seed can grow into a full plant – give it enough space. Store your seeds in a cool, dry place – they’ll remain viable for 2 to 3 years.
Want more tips on sowing and caring for your flower seeds?
Read the full sowing & planting guide on our blog.
Grow your own happiness with our annual flowers – sow, care, harvest & enjoy!
Our annual flower seeds are of the highest quality – perfect as cut flowers and loved by professional growers. Thanks to their high germination rate, you’ll enjoy a high bloom success. Because these flowers complete their full life cycle – from seed to bloom – in just one season, they’re bursting with growth energy. The result? Months of flower joy! And the best part: for many varieties, the more you pick, the more flowers the plant produces.
Our seeds are untreated and uncoated, making them ideal for growing organic flowers.
More beauties from our farm:
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