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Balloon Flower

Platycodon grandiflorus 'Sentimental Blue'

Puffy balloon buds open on this variety to reveal deep indigo veins on blue star flowers.

Balloon Flowers are summer-blooming cousins to the more familiar Bellflowers. This forms an upright mound of green foliage, bearing inflated buds that pop open into star-shaped violet-blue blossoms. Nice addition to the border, or in mixed containers. Especially good for cutting. Because they come up very late in the spring, consider planting tulips or daffodils beside the clump to mark the location. Division is seldom necessary, and not always very successful because of the carrot-like root. Long-lived, but dislikes being moved once established. Deadhead individual flowers to prolong blooming. The dried stems and seedpods remain attractive through late autumn and into the winter.


Bloom Time:

Blooms summer

Mature Height:

6-12 Inches

Hardiness Zone:

3-9 Find your zone


Full Sun,Partial Shade

Features and Usage:

Greenhouse Growing Instructions:

Grow on at 60-65° F under long days with high light levels. Water moderately, allowing to dry some in between. Once actively growing feed at 100-150 ppm N with each watering. Pinch to increase branching habit, deadhead to re-bloom. Generally finishes in 6-8 weeks. Platycodon are late to break dormancy.
Plants Per Gallon: 1
Storage Temperature Prior to Planting: 38
Cooler Humidity Prior to Planting: Low

Transplanting Instructions:

Plant in well draining professional potting soil. Top of tap root needs to stick 1" above soil surface. Once planted, water lightly and apply a broad spectrum fungicide according to directions to avoid crown and root rot.

Homeowner Planting and Maintenance Tips:

Plant in well-drained soil in full sun to partial shade.

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We have done our best to describe this plant as accurately as possible, however, different climates
and growing conditions in different parts of the country will affect height, bloom time, and color.