Hydrangea macrophylla is a species of Hydrangea

Hydrangea

Hydrangea is a genus of about 70 to 75 species of flowering plants native to southern and eastern Asia and North and South America. By far the greatest species diversity is in eastern Asia, notably China, Japan, and Korea...

native to Japan

Japan

Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

. Common names include Bigleaf Hydrangea, French Hydrangea, Lacecap Hydrangea, Mophead Hydrangea, Penny Mac and Hortensia. It is widely cultivated in many parts of the world in many climates.

Hydrangea macrophylla blossoms can be either pink, blue, or purple shades, depending on a pH

PH

In chemistry, pH is a measure of the acidity or basicity of an aqueous solution. Pure water is said to be neutral, with a pH close to 7.0 at . Solutions with a pH less than 7 are said to be acidic and solutions with a pH greater than 7 are basic or alkaline...

-dependent mobilization and uptake of soil aluminium into the plants.

Landscaping

In climates where hydrangea flowers, place in a mixed shrub border or at the back of a flower bed. Its rich foliage and large size make it a wonderful background for white or light colored flowers, even tall growing perennials and annuals. In warm climates H. macrophylla is good for adding a splash of springtime color to shady areas and woodland gardens. Minimal pruning is recommended for most prolific flowering. Flowers are easily air dried and are long lasting.

Cultivars

Some popular Hydrangea cultivars include:

• 'All Summer Beauty'
• 'Alpengluhen'
• 'Ami Pasquier'
• 'Bailmer' (marketed as Endless Summer; perpetual bloomer)
• 'Beaute Vendomoise' (giant lacecap)
• 'Blaumeise' (Swiss "Teller" lacecap)
• 'Blue Bonnet'
• 'Blue Wave'
• 'Forever Pink'
• 'Generale Vicomtesse de Vibraye'
• 'Hamburg'
• 'Lilicana' (pink-to-purple lacecap)
• 'Marechal Foch'
• 'Nikko Blue' (perpetual bloomer)
• 'Pia' (dwarf)
• 'Penny Mac' (perpetual bloomer)
• 'Soeur Therese' (white mophead)
• 'Taube' (Swiss "Teller" lacecap)
• 'Veitchii'

• Hydrangeae macrophylla var. thunbergii

Chemistry

Phyllodulcin

Phyllodulcin

Phyllodulcin is an dihydroisocoumarin found in Hydrangea macrophylla and Hydrangea serrata....

, hydrangenol

Hydrangenol

Hydrangenol is an dihydroisocoumarin. It can found in Hydrangea macrophylla, as well as its 8-O-glucoside. -hydrangenol 4'-O-glucoside and -hydrangenol 4'-O-glucosidecan be found in Hydrangeae Dulcis Folium, the processed leaves of H. macrophylla var. thunbergii....

, and their 8-O-glucosides, and Thunberginols A

Thunberginol A

Thunberginol A is an isocoumarin found in Hydrangea macrophylla and in its processed leaves form ....

 and F

Thunberginol F

Thunberginol F is a benzofuran found in Hydrangea macrophylla....

 can be found in H. macrophylla. Thunberginol B

Thunberginol B

Thunberginol B is an isocoumarin found in Hydrangeae Dulcis Folium, the processed leaves of Hydrangea macrophylla var. thunbergii....

, the dihydroisocoumarins thunberginol C

Thunberginol C

Thunberginol C is an dihydroisocoumarin found in Hydrangeae Dulcis Folium, the processed leaves of Hydrangea macrophylla var. thunbergii....

, D

Thunberginol D

Thunberginol D is an dihydroisocoumarin found in Hydrangeae Dulcis Folium, the processed leaves of Hydrangea macrophylla var. thunbergii....

 and E

Thunberginol E

Thunberginol E is an dihydroisocoumarin found in Hydrangeae Dulcis Folium, the processed leaves of Hydrangea macrophylla var. thunbergii....

, the dihydroisocoumarin glycosides thunberginol G

Thunberginol G

Thunberginol G is an dihydroisocoumarin found in Hydrangeae Dulcis Folium, the processed leaves of Hydrangea macrophylla var. thunbergii....

 3'-O-glucoside and (-)-hydrangenol

Hydrangenol

Hydrangenol is an dihydroisocoumarin. It can found in Hydrangea macrophylla, as well as its 8-O-glucoside. -hydrangenol 4'-O-glucoside and -hydrangenol 4'-O-glucosidecan be found in Hydrangeae Dulcis Folium, the processed leaves of H. macrophylla var. thunbergii....

4'-O-glucoside can be found in Hydrangeae Dulcis Folium, the processed leaves of H. macrophylla var. thunbergii.

External links

• - Splendor In The Grass
• Hydrangeas- Their Pruning and Care(Heronswood Nursery)
• http://www.HydrangeasHydrangeas.com/mopheads.html - All About Hydrangeas: Information on Hydrangea macrophylla.
• http://www.floridata.com/ref/h/hydran_m.cfm
• http://hgic.clemson.edu/factsheets/HGIC1067.htm
• Hydrangea Thoughts I - Informative but non-scholarly essay on Hydrangea (Culture, History and Etymology).