Species balloon flower

balloon flower

Platycodon grandiflorus 'Sentimental Blue'

The balloon flower (Platycodon grandiflorus 'Sentimental Blue') is a beautiful, hardy perennial that produces blue, star-shaped flowers with a "balloon-like" effect. This low-maintenance plant thrives in full sun and well-drained soil. It grows well in containers or in tracked garden beds. The Sentimental Blue variety is noted for its unique and vibrant hue. Its beautiful, airy blossoms appear in late spring and last well into the summer. It's a great addition to any garden and landscaping.

Cycle:

Herbaceous Perennial

Watering:

Average

Propagation:

Division,Cutting,Seed Propagation,Layering Propagation

Hardiness Zone:

3 - 8

Flowers:

Blue Flowers

Sun:

Full sun,part shade

Leaf:

Yes

Leaf Color:

green

Growth Rate:

Low

Maintenance:

Low

Care Level:

Medium

watering

Balloon flower (Platycodon grandiflorus 'Sentimental Blue') should be watered regularly, but lightly. During the growing season (April-September) water when the top 2-3 inches of soil feel dry or up to once per week. Water at the base of the plant so the foliage isn't wet and to reduce the risk of fungal diseases. During the winter months, only water when the top inch of soil feels dry. Too much water can lead to root rot during winter - so don't over-water!

sunlight

Balloon Flower (Platycodon grandiflorus ‘Sentimental Blue’) requires full sun to flourish and flower in the summer. The plant should be placed in an area that receives 6-8 hours of direct sunlight per day, ideally from 10 am to 6 pm. Any less than this amount of sunlight may result in poor flowering and fewer blooms. Balloon flower is also particularly sensitive to hot afternoon sun, so it may be wise to provide some afternoon shade during the hottest months of the season.

pruning

Balloon Flower (Platycodon grandiflorus 'Sentimental Blue') should be pruned during the late spring or early summer, about 1 month after its last bloom. Pruning should involve removing dead or dying stems, as well as any that are obviously overgrown or crowding other stems. Pruning should only be done to maintain the natural shape of the plant, while also eliminating any damaged stems. When pruning, it is important to follow the natural shape of the plant. Trimming away large amounts of stems can result in much smaller blooming.

Season

Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Starts Flowering

The balloon flower typically starts flowering in late summer, usually in August or September.

Starts Flowering

The balloon flower typically starts flowering in late summer, usually in August or September.

Hardiness Map

FAQ

Is it easy to propagate balloon flowers from seeds?

Propagating balloon flowers from seeds is possible but it is not particularly easy. Because the seeds are rather small compared to the size of the flower, it can be hard to collect, sow, and properly cultivate them. Additionally, the seed does not experience a long shelf life, so it is important to sow them immediately after collection. The seeds also have a long germination time which can be a tricky process, and even then, balloon flowers may take up to 2 to 3 years to start blooming once planted.

Is it possible to grow balloon flowers indoors?

Yes, it is possible to grow balloon flowers indoors. Balloon flowers (Platycodon grandiflorus) are herbaceous perennials that can survive in a wide range of temperatures and light conditions, making them suitable for indoor cultivation. While best grown outdoors in zones 4 to 9, they can be grown in bright, indirect light indoors, usually near a south-facing window. Planting the flower in a small pot with well-draining potting soil and watering regularly (but not too often) will help the balloon flower thrive indoors.

Should I remove the faded flowers of balloon flowers?

Yes, you should remove the faded flowers of balloon flowers. Removing the faded flowers encourages the plant to produce more flowers, extends the blooming season, and helps to keep the plant healthy. If you are growing balloon flowers as a cut flower, you may want to consider removing the faded flowers as it may help to extend the season of the flower’s beauty. Additionally, removing faded flowers can help to prevent the spread of disease or pests.

Could balloon flowers survive in a cold climate?

Balloon flowers can survive in a cold climate, but they may not last as robustly as they would in a warmer climate. While they don't require a lot of care, they may need a little extra attention in a cold climate - like protecting them from the cold winter winds with burlap or lightweight row covers. They prefer a light soil, so adding mulch to their environment can also help them stay warm and happy in colder climates.

Is it possible to grow balloon flowers from cuttings?

Yes, it is possible to grow balloon flowers from cuttings. To do so, take a few cuttings from a healthy, mature plant and remove any leaves from the lower half of the cutting. Dip the cut end of the cutting into a rooting hormone and then insert it into a container filled with moist potting soil. Cover the container with plastic and keep it warm and moist. With a little bit of luck, the cutting will root in about six weeks and you can then transplant the newly rooted cuttings in their own containers.

Are balloon flowers annuals or perennials?

Balloon flowers (Platycodon grandiflorus) are perennials, meaning that they live for more than one growing season. They are hardy in U.S. Department of Agriculture plant hardiness zones 4 through 8. They are native to China and Japan and are part of the campanulaceae family.

Should I mulch around balloon flowers?

Yes, mulching around balloon flowers is a great way to keep the soil moist and provide additional nutrition. Mulch also helps keep weeds away and can help reduce disease problems. It will also help prevent the plant from drying out, especially in hot weather. Make sure to use organic mulches such as grass clippings or compost, and keep the mulch away from the crown of the plant.

Could balloon flowers be used in a rock garden?

Yes, balloon flowers can be used in a rock garden. These flowers are known for their rosette shaped foliage and star-shaped pink or blue flowers that make them perfect for rock gardens and other harsh growing environments. Plant them in clusters in sunny areas with good drainage to enjoy their blooming beauty, year after year. Low maintenance and drought tolerant, balloon flowers are perfect for bringing color and texture to your rock garden landscape.