Cosmos, Rose Bon Bon ~ 45 seeds

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SKU
43059200
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Sun Preference
Full-Sun
Bloom or Harvest Time
Summer, Fall
  $3.39

Description

Cosmos bipinnatus
Annual
Summer/fall bloom
Frost tender

A bee & butterfly favorite

From the very best French breeders, florist-quality Rose Bon Bon offers you extra fancy blossoms densely packed with frilled petals in a rich romantic rose. This exceptionally beautiful and care-free new cosmos produces 3-inch flowers that bloom non-stop on long stems, making them perfect for cutting abundant bouquets all summer long. Butterflies love to visit these lovely blossoms as they sway above finely cut foliage.

Seed Starting Successfully

Start your garden from scratch with Gertens' wide variety of seed packets! Whether you're a seasoned gardener or just starting out, we have seeds for every skill level and garden size. From colorful flowers to delicious vegetables, our seeds are carefully selected for their quality and performance.

Seed Starting Successfully

Grow Your Best

When to Grow Veggies & Fruits

From Our Experts

Details

Cold Winters: May - June
Mild Winters: April - June  
Sun/Shade: Full sun 
Sow Seeds: 1 - 2 inches apart, 1/2 inch deep 
Days To Germinate: 7 - 10 days 
Mature Height: 3 - 4 feet  

TO PLANT DIRECTLY OUTDOORS
Sow seeds 1/2 inch deep, 1 to 2 inches apart in a sunny location in well-worked garden soil once danger of frost is past. Keep seed bed evenly moist; seedlings emerge in 7 to 10 days. Thin established seedlings to a final spacing of 8 inches apart, so plants have room to mature. Keep well weeded and watered while plants are young; mature cosmos can handle hot and dry conditions, but bloom longest if regularly watered.

TO START EARLY INDOORS
Sow seeds 1 inch apart in a container of seed starting mix, 4 to 6 weeks before last expected frost. Cover 1/2 inch deep, keep moist and provide a good light source until ready to go outside. Plant outdoors 8 inches apart once weather warms up, after gradually acclimating seedlings to outdoor conditions.

GROWING NOTES
These free-flowering, long blooming summer flowers produce reliably in all soil types to fill the garden with abundant blossoms. Sow several times through June for a succession of fresh flowers. Cutting stems of flowers regularly actually prolongs the blooming season. Stunning Rose Bon Bon makes beautiful and long-lasting bouquets and pairs easily with other garden flowers.

More Information

Brand Renee's Garden
Seed Packet Type Flowers
Sun Preference Full-Sun
Bloom or Harvest Time Summer, Fall
Plant Life Cycle Annual
Mature Height (Range) 37" - 48"
Spacing in Row 1-2", thin/transplant 8"
Planting Depth 1/2"
Days to Germination 7-10 days

Product Questions (12)

Starting times will vary depending on the vegetable you are growing. Each seed packet will have specific sowing instructions for that type of vegetable. Some plants, such as tomatoes and peppers, should be started indoors, 6-8 weeks before the last frost...
The process of bringing seeds outside is called hardening off. Hardening off is generally done sometime after the seedling has two full sets of normal leaves. In Minnesota, you want to begin hardening off seedlings in late April/early May.  To ...
If you have a southern facing window with all day sun, you may grow seedlings in a windowsill. Be sure to rotate the seedlings frequently to ensure the plants do not lean heavily towards the sun. For more even results, use a grow light, positioned roughly...
We recommend using either high intensity T5 fluorescent bulbs, or LED grow lights. Both setups will produce excellent results. T5s are the typical grow light, are economical and come in frequencies that are helpful for plant development. LED technology...
Grow lights should be kept roughly 4-5” above the top of seedling leaves. If you are using very powerful LEDs, you could even keep them 8-10” away.
Grow lights should be used to mimic a natural sunlight cycle for plants. We recommend using them 12 hours a day, from roughly 7am to 7pm.  
A variety of seedling trays exist for seed starting. If you are starting smaller seeds, a simple peat cell tray works great. However, the larger the seed, the larger the initial pot should be. If you are starting larger seeds indoors such as: sunflowers...
Do not start any type of fertilizer regime for young seedlings until they have at least two full sets of regular leaves. Start with a root stimulator, then after a month you may move on to a gentle, weak (half strength) water-based fertilizer. Remember...
Let the roots tell you when to transplant. When you begin to see the seedling’s root growing out of the bottom of their current pot, it is time to transplant up to something larger. We recommend using a 4” nursery pot to transplant most seedlings. In...
Gertens carries a wide variety of both spring and autumn planted bulbs. Spring planted bulbs, such as gladioli and dahlias, are best started indoors in early April, and planted outside once the soil temperatures are above 55 F. Autumn planted bulbs, ...
The big three tips are: 1) Staking and training 2) Feeding and watering and 3) Harvesting and enjoying. 1) Keeping plants trained and staked allows air circulation around crops and provides much-needed support for produce as it grows...
Gertens does carry an assortment of both perennials, as well as annual and perennial wildflower mixes. It is important to remember when growing perennials, that you will not get any flowers the first year of growth. It often takes a perennial 2-3 years...
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