Hydrangea quercifolia · Hydrangeaceae

Oakleaf Hydrangea

⚠️ Not safe for petsPerennial life cycle with annual flowering.100 to 200 cm

LightPartial shade, tolerates full sun

WaterMedium, keep soil moist but not soggy

DifficultyMedium

ColdResistant to temperatures down to -15 degrees Celsius.

Partial shade, tolerates full sunMedium, keep soil moist but not soggyMediumResistant to temperatures down to -15 degrees Celsius.

Description & origin

The Oakleaf Hydrangea is a flowering shrub known for its large, oak-shaped leaves. Its stunning blooms make it a popular choice for gardens.

Size

Can reach up to 2 meters in height, depending on growing conditions.

Foliage

Leaves are large, lobed, and dark green, providing a good contrast to the flowers.

Flowering

Blooms in summer, featuring panicle-shaped inflorescences that start white and can change to pink or red.

Light

Prefers partial shade but can tolerate full sun in cooler climates.

Soil

Prefers rich, well-drained soils with a slightly acidic pH.

Watering

Requires regular watering, especially in hot months, keeping the soil moist but not soggy.

Temperature

Resistant to moderate temperatures but should be protected from severe frost.

Fertilising

Fertilize in spring with a balanced fertilizer to promote healthy growth.

Repotting

Transplant in fall or spring, ensuring the soil is well-prepared.

Pruning

Prune after flowering to maintain shape and encourage new growth.

Propagation

Can be propagated by cuttings or division in spring.

Fungal diseases

Can be susceptible to diseases like powdery mildew and root rot in overly moist conditions.

Pests

Can be attacked by aphids and scale insects, affecting the plant's health.

Leaf discoloration

Leaves may yellow if the soil lacks nutrients or if there is overwatering.

In the garden

Other uses

Used in floral arrangements due to its beauty.

Did you know…

This plant is known for its adaptability to various soil conditions. The flower colors change depending on the soil pH.