How to Grow Blue Kazoo Spirea - Plant Care & Tips

By NorwichGardener Team / 2024

Blue kazoo spirea is a plant that is native to China. It is a deciduous shrub that can grow to be about 3 feet tall. The blue kazoo spirea has blue flowers that bloom in the summer.

How to Grow Blue Kazoo Spirea - Plant Care & Tips

Alternative name

Blue Kazoo Spirea
Kazoo Spirea
Spirea
False Spirea
Meadow Spirea

Basic info

Blue Kazoo Spirea is a deciduous shrub that grows to be about 3-4 feet tall.
It has dark blue flowers that bloom in late spring to early summer.
The leaves are ovate shaped and are dark green in color.
It is native to North America and can be found in the eastern parts of the United States and Canada.
It prefers to grow in moist soils and in full sun to partial shade.
It is a low-maintenance plant and is tolerant of Deer and rabbits.
It can be propagated by cuttings or divisions.
It is susceptible to powdery mildew, leaf spot, and rust.
It is a good plant for attracting bees and butterflies.
It can be used in mass plantings, as a hedge, or in a mixed shrub border.

Related plant:
Buddleja Davidii Nanho Blue

How to Grow

For blue kazoo spirea, first step is to find a plant that is suited for your climate. In general, blue kazoo spirea does best in full sun to partial shade and average to moist, well-drained soils.
The second step is to prepare the planting site. If you are planting in spring or summer, clear the area of all weeds and grasses. If you are planting in fall or winter, wait until the first frost to clear the site.
The third step is to dig a hole that is twice the width and depth of the blue kazoo spirea pot.
The fourth step is to remove the blue kazoo spirea from its pot and gently loosen the root ball.
The fifth step is to place the blue kazoo spirea in the hole.
The sixth step is to fill in the hole with soil and pack it gently around the root ball.
The seventh step is to water the plant deeply.
The eighth step is to apply a layer of mulch around the plant, but not touching the stem.
The ninth step is to fertilize the plant once a year in spring with a general purpose fertilizer.
The tenth and final step is to prune the plant as needed to maintain its shape.

Related plant:
Early Blue Hydrangea

Soil Requirement

About soil condition, the blue kazoo spirea is best in a slightly acidic to neutral soil, but it is tolerant of a wide range of soil conditions. It does best in full sun to partial shade, and it is heat and drought tolerant. It is a relatively low-maintenance plant, and it is easy to grow. It is a good choice for a garden or landscape.

Light requirement

Like the other Blue Kazoo Spirea, this plant prefers full sun to partial shade. It can tolerate some shade, but it will not flower as well in shady areas. Its a tough plant that is adaptable to many different types of soil, as long as the soil is well-drained. Once its established, its quite drought tolerant.

Good Temperature

The temperature condition for the blue kazoo spirea is it prefers warm weather and does not tolerate cold well. They grow best in USDA hardiness zones 6-9. In the southern part of their range they are semi-evergreen and may lose some leaves during a hard winter.

Humidity Aspect

Ideal humidity condition for this plant is around 40%. The plant can survive in lower humidity but it will not be as vibrant. If the humidity drops below 30%, the leaves will start to turn brown and fall off.

Fertilizer Requirement

Regarding fertilizer, usually the plant doesn't need much. If you determined that your plant is lacking nutrients, you can fertilize it with a slow-release fertilizer or compost. It's best to avoid using too much fertilizer, as it can damage the roots and cause the plant to grow too quickly.

About light

Pruning is an important part of keeping your blue kazoo spirea healthy and looking its best. blooms. Deadheading also helps to promote new growth and keep the plant tidy. You can prune your blue kazoo spirea in early spring, just as the new growth begins to appear. Simply cut back the stems to the desired height. You can also trim away any damaged or diseased stems at this time.

Plant Propagation

Propagation is best done in early spring by stem cuttings taken from young, vigorously growing plants. Take cuttings that are about 6 inches long and carefully remove the bottom leaves. Dip the cuttings in a rooting hormone and plant them in moist potting soil. Keep the soil moist and in a few weeks, the cuttings should take root. Once they have rooted, transplant them into individual pots and keep them well watered.

Plant Growth

Usually, the plant growth rate is fast, but will depend on the growing conditions. The plant is drought resistant and will tolerate some shade, though it prefers full sun. The soil should be well-drained and kept moist. Fertilize in early spring.

Common Problems

Common problems for this kind of plant are powdery mildew, rust, and leaf spot. These can all be controlled with the proper chemicals and treatment. If you see any of these problems on your plant, be sure to take care of them right away to prevent the spread.

Growing Tips

Do not forget to water your blue kazoo spirea regularly. The plant prefers moist soil, so make sure to water it frequently.
Fertilize your blue kazoo spirea every few weeks during the growing season.
Prune your blue kazoo spirea regularly to encourage new growth and keep the plant compact.
Keep an eye out for pests and diseases. If you notice any problems, treat them immediately.
Place your blue kazoo spirea in a sunny spot. The plant needs at least six hours of sunlight per day.
Make sure the soil around your blue kazoo spirea is well-drained. The plant does not like wet feet.
During the winter, protect your blue kazoo spirea from the cold. Bring it indoors or cover it with a frost blanket.
Take care when transplanting your