Tuff Stuff - Mountain Hydrangea - Hydrangea serrata

pH:

B (5.6 - 6.2)

EC (2:1 Extraction Method):

B,C (0.6 - 2)

Fertilization:

Medium,High (150 - 300 ppm)

Light Requirements:

High

Water Categories:

Moderate to Moist

Rooting Out Temperature:

B (65 - 72º Fahrenheit)

Growing On Temperature:

A (60 - 65º Fahrenheit)

Holding Temperature:

A (40 - 50º Fahrenheit)

Planting and Timing Information:

Spring to Fall Finish, 1ppp

Starting Materials:

Liners

Finishing Times:

6" and Gallon Pot : 2.25": 8-10 weeks; Quick Turn: 4-6 weeks

Finishing Times:

10-12" and Two Gallon Pot : 2.25": 12-16 weeks

Finishing Times:

18" and Three Gallon Pot : 2.25": 16-20 weeks; Quick Turn: 12-16 Weeks

Over Wintering Temperature:

35 to 50 degrees

Pinching and Growth Regulators:

B-9 is effective at controlling height and darkening foliage color. Pruning soon after potting will produce a finished product that doesn't open up when it flowers.

Pest and Disease Management:

Aphids, leaf spot, mildew

Grower Tips:

We wanted a hydrangea with improved bud and stem hardiness in addition to the ability to flower on new wood. This plant delivers on both accounts. Its attractive, reddish-pink lacecap flowers create a mass of color in early summer, and it continues to produce new flowers right up until frost. The semi-double to double florets begin with creamy coloration in the center before maturing to an intense pink.

Prefers moist, well-drained soil. Supplemental water may be needed in very hot weather. Pruning is typically not needed, but it may be pruned to shape immediately after its first bloom in early summer. Fertilize in spring with a controlled release fertilizer.

Spring Outdoor Finish:

Vernalization:

Cold Required