How much sun does Deutzia gracilis need?

It thrives in full sun to partial shade.

What kind of soil is best for this plant?

It prefers well-draining soil with average moisture.

When should I prune Deutzia gracilis?

Prune after flowering to maintain shape and encourage new blooms next season.

Is Deutzia gracilis deer resistant?

Generally, deer tend to avoid Deutzia.

Plant guide

Slender Deutzia.

Deutzia gracilis

Pronounced DOY-tsee-uh GRAH-sil-iss

Also known as Japanese snowflower, Slender deutzia, Slender pride of rochester, slender deutsia

The Slender Deutzia is a charming, deciduous shrub known for its graceful, arching branches adorned with abundant, small white flowers in late spring. It's a lovely addition to borders, foundations, or as a low hedge, offering delicate beauty and a pleasant fragrance. This plant is relatively easy to care for, making it a good choice for many gardeners.

At a glance

Care level: Easy
Plant type: Shrub
Light: Full sun to partial shade
Indoor light: bright-indirect
Water: Every 7 to 14 days
Mature size: 3-6 ft tall and wide
Growth rate: medium
Hardiness: USDA 5 to 8
Bloom time: Late spring to early summer

Care

Plant in well-draining soil and provide regular watering, especially when young. Prune after flowering to maintain shape and encourage future blooms. Watch for common pests like aphids or scale insects.

Watering: Water regularly, keeping the soil consistently moist but not waterlogged.
Feeding: Fertilize in early spring with a balanced, slow-release fertilizer.
Pruning: Prune lightly immediately after flowering to remove spent blooms and shape the plant.
Repotting: Repot container-grown plants when they become root-bound, typically every 1-2 years.
Soil: Well-draining, loamy soil
Soil pH: Slightly acidic to neutral (5.5-7.0)
Temperature: -23.3 to 26.7°C
Humidity: 40 to 60%

Safety

People: All parts of Deutzia gracilis are considered non-toxic to humans.
Pets: Non-toxic to cats and dogs.
Children: There are no specific safety concerns for children, but always supervise young children around plants.
Edibility: This plant is not intended for consumption.

How to identify it

Slender, arching branches
Abundant small white flowers
Lance-shaped leaves
Deciduous shrub habit
Fragrant bloom

Height: 0.91 to 1.83m
Spread: 0.91 to 1.83m
Leaves: Green, deciduous
Flowers: White, 1 to 2cm

Common problems

Aphids — Small, soft-bodied insects that feed on plant sap, often causing distorted growth.
Powdery Mildew — A fungal disease that appears as white, powdery spots on leaves and stems.
Leaf Spot — Fungal or bacterial infections causing spots on the foliage, which can lead to leaf drop.

Growing it

Propagation: Cuttings, Division
When to plant: Spring, Fall

Plant Deutzia gracilis with companions that enjoy similar well-drained soil and can tolerate its mid-spring to early summer flowering period.

Grows well with

Astilbe — Astilbes share similar moisture and light preferences and complement Deutzia's bloom time.
Hostas — Hostas provide attractive foliage contrast and thrive in the partial shade conditions Deutzia can tolerate.
Ferns — Many ferns prefer similar moist, shaded conditions, creating a lush woodland aesthetic.
Coral Bells — Coral Bells offer colorful foliage and do well in similar soil and light conditions, adding texture.

Keep away from

Scale Insects — Scale insects can infest Deutzia, weakening the plant and potentially spreading disease.
Spider Mites — In hot, dry conditions, spider mites can infest Deutzia, causing stippling and yellowing of leaves.

Similar species

Deutzia x rosca — This hybrid also produces abundant white flowers but may have a slightly different growth habit or bloom time.
Deutzia crenata — Similar in appearance with white flowers, but Deutzia crenata can be a larger shrub with more textured leaves.
Philadelphus (Mock Orange) — Mock Orange offers similar fragrant white flowers and often shares companion planting needs but can be more vigorous.

Science

Family: Hydrangeaceae
Genus: Deutzia
Order: Cornales
Class: Magnoliopsida
Native range: Japan
Conservation: Not of conservation concern.

In its native habitat, Deutzia gracilis typically grows in woodlands and along stream banks, preferring moist, well-drained conditions.

Value to wildlife: nectar source, pollen source
Pollinators: bees, butterflies, moths
Uses: ornamental

Through the year

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Flowering

Fruiting

Foliage

Ecological indicators

Salinity: 2/9
Soil reaction: 6/9
Light: 5/9
Temperature: 6/9
Moisture: 5/9
Nutrients: 5/9

Taxonomy resolved against GBIF.

Questions people ask

How much sun does Deutzia gracilis need?: It thrives in full sun to partial shade.
What kind of soil is best for this plant?: It prefers well-draining soil with average moisture.
When should I prune Deutzia gracilis?: Prune after flowering to maintain shape and encourage new blooms next season.
Is Deutzia gracilis deer resistant?: Generally, deer tend to avoid Deutzia.

Where the name comes from

The genus name 'Deutzia' honors Johann van der Deutz, an 18th-century Dutch mayor of Amsterdam. The species name 'gracilis' is Latin for 'slender', referring to its graceful habit.

Good to know

Deutzia gracilis is commonly known as Slender Deutzia or Korean Hydrangea.
It produces abundant white flowers in late spring to early summer.
The flowers are often fragrant.

Is your slender deutzia looking unwell?

This page is a general guide. Pocket Botanist diagnoses problems from a photo of your actual plant, works out watering for your light and conditions, and reminds you when care is due.

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This guide was generated with AI and checked against GBIF taxonomy. It is general information, not horticultural or veterinary advice. Read about how we build these guides.