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Astra Double Blue Balloon Flower

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Pre-Order for Spring of 2022 - Learn More

  • Partial Sun to Full Sun (At Least 5 Hours of Direct Sunlight)
  • Height 8 - 10 Inches
  • Width 6 - 8 Inches
  • Growing Zones 3-8

If the cute balloon buds that beg to be popped (don’t do it) do not get you, the double layer of petals on this medium blue unique late spring blooming perennial will. A lower growing variety than the P. grandiflorus, Astra Double Blue Balloon Flower will remain a petite 10 inches tall. Its faded denim double blue blooms with star shaped stamen complement the lightly gray/green foliage. Highly adaptable to a variety of garden soil conditions, you will find this an easy to care for part to full sun location perennial.

Native to meadows and hillsides in China, Korea, Japan and Siberia, Platycodon is a hardy perennial thriving in Zones 3 to 8. Northern gardeners will appreciate their cold hardiness and plant in full sun, but should mark the place where the plants will come up the following spring as they die back to the ground completely. They are deer resistant, and do really well in rock gardens and in the foreground of a garden bed. Mid South gardeners will appreciate their tolerance for the mid summer heat but should give some afternoon shade for best performance. Deep South gardeners will have to pass on this petite perennial as the hot humid temperatures will prove to be too much for it.

Astra Double Blue Balloon Flower Care

Tolerating all soil types except wet and soggy, Platycodon Double Blue Balloon Flower will grow in poor to fertile soil that is well drained. Preferring a light sandy loam that is reasonably fertile and stays consistently moist, it will grow in even rocky soils making it a great candidate for a rock garden. It will tolerate a wide variety of soil pH ranges as well. Water regularly to maintain a consistently moist soil. Mulch in areas with hot summer sun to help retain that moisture. Fertilization is not necessary if your soil is fertile, but for particularly poor soil, amend it with a well composted organic material or apply a controlled release fertilizer at time of planting. Plant in the spring when the danger of the last frost has passed, and do not plan on moving the plant as they tend to resent disturbance. Their fleshy fragile root systems are probably the reason behind this tendency.

Deadheading is encouraged to promote repeat blooming. Don’t remove the whole stem, just the spent flower. Pruning is encouraged if the plant is getting leggy, but you should not have to stake this miniature version of the P. grandiflorus. Hybrid varieties tend to not reseed themselves and rarely sow true to its parent plant should they do so.

Astra Double Blue Balloon Flower Spacing

Space your plants 6 to 8 inches apart. These are small plants, growing just 10 inches tall and spreading out just 8 inches. Watch for snails and slugs who seem to be fond of these plants and put a biologic control in place should they become a problem. As their bell shaped blooms burst open to greet you in the summer, you will enjoy seeing this dainty blue perennial in your garden this season.

Astra Double Blue Balloon Flower Information

USDA Hardiness Zones: 3-8
Plant Type: Perennial
Sunlight Exposure: Partial Sun to Full Sun
Mature Height: 8 - 10 Inches
Mature Width: 6 - 8 Inches
Plant Spacing: 6 - 8 Inches
Growth Habit: Mounded
Flower Color(s): Blue
Flower Shade: Periwinkle
Seasonal Interest: Mid Summer
Foliage Type: Herbaceous
Foliage Color(s): Green
Attracts: Bees
Resists: Deer
Features: Attracts Pollinators, Cut Flowers, Low Maintenance
Uses: Border Plant Container Cut Flower Mass Planting
Plant Brand: Proven Winners
Botanical/Scientific Name: Platycodon hybrid 'Astra Double Blue'

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Plant Addict Guarantee (Included On All Plant Orders)

Plant Addicts guarantees your plant(s) will arrive happy and healthy, but the plant(s) are being shipped through the mail and accidents happen. If the plant is dead, has dried out roots or the incorrect item was shipped just notify Plant Addicts within 3 days upon delivery. We may ask for pictures but will try to make it as easy as possible for you. Please note plant(s) with damaged branches or wilted leaves will not qualify for this guarantee. Plants are very resilient and will rebound quickly when cared for correctly.

For information on how to care for you new plant please check out our guide. Guide: How to Care for Your New Plant(s)

Plant Addicts Warranty - 1 Year (Extra Purchase Required)

We encourage all plant lovers to purchase the Plant Addicts Warranty whether you’re new or an expert. There are many variables outside our control and yours that can cause the demise of your plant(s). Examples would be hungry animals, drought, poor soil conditions, over watering, disease, insects & many other factors. The Plant Addicts Warranty is a 1 year warranty protecting you from all the unknowns and will replace your plant if it moves on to the plant afterlife.

The warranty is purchased on a per plant basis and must be purchased at the same time as the plant purchase. We will cover 100% of the price of the plant but the warranty does not cover shipping cost. Simply let us know if your plant has died within one year of receiving it and we’ll get you a new one shipped out. We may ask for photos for documentation purposes but again we’ll try to make it as easy as possible.

For more information, please go to our Shipping & Returns page at the bottom of the website.

Guide: How to Care for Your New Plant(s)

Planter Shipping

Standard Colors: 2-3 business days

Special Order Colors: 8 weeks - this is due to the planter being custom made with the color(s) of your choice

Please Note: On special orders there can not be any cancellations

Plant Shipping

Time of Order:

Summer Shipping

  • If there is extreme heat we’ll delay shipping.  
    • We’ll have to review what areas the plants are traveling through along with your location

Once your plant is shipped you’ll receive an email with tracking information. Depending on the above criteria we’ll ship your plant(s) towards beginning of the following week from your order. We put together this helpful guide of what to do when you receive your plants in the mail.

It is important to know that all of our plants are clearly labeled for which growing zones the plant can survive in. The plants are thoroughly trialed and tested in every growing zone before we state the plant can grow in a zone. Again, our #1 priority is to ship the plants to you healthy and ready to thrive in your location. So we will do everything in our power to do so.