Species panicle hydrangea
Panicle hydrangea paniculata 'Kolmakilima' MOONROCK featuring brownish clusters of flowers resembling moonlit rocks with green leaves atop brown stems

panicle hydrangea

Hydrangea paniculata 'Kolmakilima' MOONROCK

Also Known As - P.G. Hydrangea
Panicle hydrangea (Hydrangea paniculata 'Kolmakilima' MOONROCK) is a deciduous shrub with large clusters of creamy white flowers in the summer. This variety has larger flower heads than the normal panicle hydrangea. The flowers turn a shade of pink as they age. Its bold foliage forms a dense, upright oval shape. The stems are strong and flower heads typically stay upright even during strong winds or heavy rains. It makes a great addition to any garden with its lush display of blooms. It likes full sun and prefers moist, rich soil in a sheltered position. Panicle hydrangea is perfect for cut flower arrangements.

Cycle:

Perennial

Watering:

Average

Propagation:

Cutting,Layering Propagation,Division,Grafting Propagation

Hardiness Zone:

4

Flowers:

White Flowers In Summer

Sun:

Filtered shade, Full sun

Soil:

Well-drained

Fruits:

Fruits In Autumn Ready In Fall

Leaf:

Yes

Leaf Color:

green

Growth Rate:

High

Maintenance:

Moderate

Care Level:

Medium

watering

Panicle Hydrangeas should be watered regularly especially during their establishment period. During the growing season (May through August) water plants deeply about once a week, or more often in hot, dry conditions. The soil should be moistened to the depth of 12- 18 inches. During the autumn and winter months, water need is much lower; if no rainfall is received, water the hydrangeas at least once a month. Allow the root and soil to completely dry out between waterings.

sunlight

Panicle hydrangeas need around 6 to 8 hours of direct sunlight per day, which is usually provided in its native, cold-temperate regions. The best time of day to ensure the plant gets adequate sunlight is from after 10 a.m. to before 4 p.m.. Any sunlight before or after that period should be filtered through a window or shade plant to reduce the intensity and protect the plants from sunscald. Partial shade is also beneficial for this species as they can tolerate some light shade as well.

pruning

For panicle hydrangea (Hydrangea paniculata 'Kolmakilima' MOONROCK), pruning should be done in the early spring season (March-April). Pruning should be done moderately to retain its shape and reduce the size a little, to keep the shrubs neat and tidy. To prune, you should cut back the previous year’s flowerheads once the chances of frost have passed. Do not cut back too much as it may delay the flowering. Additionally, you can deadhead the spent blooms in autumn and trim lightly to encourage new flower development.

Season

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

Hydrangea paniculata 'Kolmakilima' MOONROCK typically starts flowering in late June or early July.

Harvest Fruit

The best time to start harvesting the fruits from Hydrangea paniculata 'Kolmakilima' MOONROCK is in July and August.

Hardiness Map