Annabelle Hydrangea (Hydrangea arborescens 'Annabelle') is a deciduous shrub that produces large round clusters of white flowers in the summer months.

It is a popular choice for gardens as it is low maintenance and can grow up to 5 feet tall and wide.

Pollination for Annabelle Hydrangeas occurs through insect pollination, particularly butterflies and bees. The flowers are rich in nectar, which attracts these insects. Once the insects land on the flower, they collect the pollen on their bodies and transfer it to the stigma of another flower while collecting more nectar. This process repeats, resulting in successful pollination and seed production.

It is important to note that Annabelle Hydrangeas have sterile flowers, meaning they do not produce viable seeds. Instead, they reproduce through vegetative propagation, where new plants are produced through the growth and rooting of stem cuttings.

Overall, Annabelle Hydrangeas rely on insects for pollination and do not produce viable seeds. However, they are still a popular and beautiful addition to any garden.

Annabelle Hydrangea (Hydrangea arborescens 'Annabelle') FAQ

General Information

• What is Annabelle Hydrangea? Annabelle Hydrangea is a deciduous shrub with large, showy, white blooms that appear in mid to late summer.
• What is the scientific name for Annabelle Hydrangea? The scientific name for Annabelle Hydrangea is Hydrangea arborescens 'Annabelle'.
• How large does Annabelle Hydrangea grow? Annabelle Hydrangea can grow up to 6 feet tall and wide.
• What is the hardiness zone for Annabelle Hydrangea? Annabelle Hydrangea is hardy in zones 3-9.

Care

• What kind of soil does Annabelle Hydrangea prefer? Annabelle Hydrangea prefers moist, well-draining soil that is rich in organic matter.
• Does Annabelle Hydrangea require full sun or partial shade? Annabelle Hydrangea prefers partial shade, especially in hot climates.
• How often should Annabelle Hydrangea be watered? Annabelle Hydrangea should be watered regularly, especially during hot, dry weather.
• When should I prune Annabelle Hydrangea? Annabelle Hydrangea can be pruned in late winter or early spring before new growth appears.
• Does Annabelle Hydrangea require fertilizer? Annabelle Hydrangea benefits from the addition of fertilizer in the spring and summer.

Problems

• What are some common diseases that affect Annabelle Hydrangea? Some common diseases that affect Annabelle Hydrangea include powdery mildew, leaf spot, and rust.
• What are some common pests that affect Annabelle Hydrangea? Some common pests that affect Annabelle Hydrangea include aphids, spider mites, and scale insects.
• What should I do if my Annabelle Hydrangea isn't blooming? If your Annabelle Hydrangea isn't blooming, it may be because it was pruned too late in the season or because it is getting too much shade.

Propagation

• How can I propagate Annabelle Hydrangea? Annabelle Hydrangea can be propagated by division in the fall or by softwood cuttings in the early summer.
• How long does it take for Annabelle Hydrangea to grow from a cutting? Annabelle Hydrangea can take several months to grow from a cutting.
• Do I need to use rooting hormone when propagating Annabelle Hydrangea? Using rooting hormone can increase the chances of success when propagating Annabelle Hydrangea from cuttings.

Planting Annabelle Hydrangea

Annabelle Hydrangea prefers partial shade to full sun and well-draining soil. Choose a location that receives morning sun and afternoon shade to provide the best growing conditions. Additionally, ensure the soil is consistently moist but not saturated. Before planting, amend soil with compost to improve soil structure and fertility. Plant hydrangeas in early spring or fall, spacing them about 3-5 feet apart.

Caring for Annabelle Hydrangea

Water your Annabelle Hydrangea regularly, especially during hot, dry weather. Mulch around the plant with compost or shredded leaves to retain moisture and suppress weed growth. Prune the plant in late winter or early spring, removing any dead or damaged wood. Additionally, you can trim the plant to keep its size manageable or shape it as desired. Fertilize the plant once a year in early spring with a balanced, slow-release fertilizer to encourage healthy growth and maximum blooms.