Species smooth hydrangea
Smooth Hydrangea arborescens 'Hayes Starburst' - white or cream floral fireworks on an upright plant

smooth hydrangea

Hydrangea arborescens 'Hayes Starburst'

Smooth hydrangea (Hydrangea arborescens 'Hayes Starburst') is an eye-catching, low-maintenance shrub that will bring abundant beauty to any garden. This hydrangea variety grows to about 4-5 feet tall, with large, white blossoms that look like a starburst when in full bloom. It is a deciduous shrub that looks great year-round, with attractive dark green foliage and red-tinted stems in the winter. This versatile shrub can do well in sun or shade, and requires minimal pruning. It is drought and salt tolerant, making it a great addition for a variety of landscaping projects, either as a standalone specimen or planted in groups for a show-stopping display.

Cycle:

Perennial

Watering:

Average

Propagation:

Cutting,Layering Propagation,Division,Grafting Propagation

Hardiness Zone:

4 - 8

Flowers:

White to greenish-white Flowers

Sun:

Part shade

Leaf:

Yes

Leaf Color:

green

Growth Rate:

Low

Maintenance:

Low

Drought Tolerant:

Yes

Salt Tolerant:

Yes

Care Level:

Medium

watering

Smooth hydrangea (Hydrangea arborescens 'Hayes Starburst') plants should be watered on a regular basis, but the exact amount and schedule will depend upon the location and environmental conditions. Water the plants deeply every week or deeper and less frequent when the temperature is above 80°F. If the soil is dry, water the plants more often. During the summer months, the plants need 1–2 inches of water per week, and during the winter, 1 inch of water every 2 weeks is enough. You can also mulch around the plant to help conserve moisture. Make sure the soil is very wet when applying the fertilizer and then allow the soil to dry again before you water.

sunlight

Smooth hydrangea (Hydrangea arborescens 'Hayes Starburst') should receive full sun for at least 6 to 8 hours each day for optimal growth. This will help to produce high-quality blooms. It can also tolerate some shade and partial shade, although growth and flowers will be reduced in these conditions. It does best in an area with full sun in the morning and partial shade in the afternoon.

pruning

Smooth hydrangea (Hydrangea arborescens 'Hayes Starburst') should be pruned once per year, preferably in late winter or early spring before new growth appears. This will help encourage a thicker, bushier growth for the upcoming season. Pruning is best done by removing any dead or diseased stems, cutting back the stems to a pair of healthy buds, and thinning the branches down to an even height. Be sure to use sharp, clean pruning tools to avoid damaging the stems and make the cuts at a 45 degree angle. You can also remove up to 1-third of the oldest stems down to the ground for renewal.

Season

Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Starts Flowering

Hydrangea arborescens 'Hayes Starburst' typically starts flowering in late spring, usually in May or June.

Starts Flowering

Hydrangea arborescens 'Hayes Starburst' typically starts flowering in late spring, usually in May or June.

Hardiness Map