Astra Semi-Double Lavender Balloon Flower
Platycodon grandiflorus 'Astra Semi-Double Lavender'
Astra Semi-Double Lavender Balloon Flower flowers
(Photo courtesy of NetPS Plant Finder)
Height: 12 inches
Spacing: 9 inches
Hardiness Zone: 3a
Balloon-like buds swell and open in the garden to large, semi-double, bell-shaped lavender flowers with clearly defined darker veins; an excellent bedding or container plant
Astra Semi-Double Lavender Balloon Flower has masses of beautiful lavender bell-shaped flowers with deep purple veins at the ends of the stems from early to late summer, which emerge from distinctive steel blue flower buds, and which are most effective when planted in groupings. The flowers are excellent for cutting. Its serrated pointy leaves remain dark green in color throughout the season. The fruit is not ornamentally significant.
Astra Semi-Double Lavender Balloon Flower is an herbaceous perennial with a mounded form. Its relatively fine texture sets it apart from other garden plants with less refined foliage.
This is a relatively low maintenance plant, and is best cleaned up in early spring before it resumes active growth for the season. It has no significant negative characteristics.
Astra Semi-Double Lavender Balloon Flower is recommended for the following landscape applications;
- Mass Planting
- Rock/Alpine Gardens
- Border Edging
- General Garden Use
- Container Planting
Planting & Growing
Astra Semi-Double Lavender Balloon Flower will grow to be about 12 inches tall at maturity, with a spread of 12 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 9 inches apart. Its foliage tends to remain dense right to the ground, not requiring facer plants in front. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 10 years.
This plant does best in full sun to partial shade. It prefers to grow in average to moist conditions, and shouldn't be allowed to dry out. It is not particular as to soil type or pH. It is somewhat tolerant of urban pollution. This is a selected variety of a species not originally from North America.
Astra Semi-Double Lavender Balloon Flower is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. It is often used as a 'filler' in the 'spiller-thriller-filler' container combination, providing a mass of flowers against which the thriller plants stand out. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.