|Endless Summer Hydrangeas photo from the Endless Summer site|
I've spoken with a few gardeners here in the northern regions who are dismayed with the flowering of their Endless Summer Hydrangeas. (see http://shirley-agardenerslife.blogspot.com/2010/09/fertilizer-friday-flaunt-stages-of-pink.html) The unique quality of this hydrangea of blooming on new and old wood appealed to many in the harsher regions. Zones 3, 4 and 5 sometimes find it more difficult to grow certain species of hydrangea, especially those with colourful blossoms. When Endless Summer was introduced a few years ago we thought we found the one plant that offered what we sought! Blue in acidic soil and pink mophead blooms in alkaline, these gorgeous plants flew out the nursery doors.
|photo from Endless Summer site|
Endless Summer require at least six hours of direct sunlight to flower well. They need to be mulched heavily after the first hard autumn frost. Growers of this hydrangea have a few more pieces of advice to offer: Don't cut back your hydrangea in the fall or early spring, wait for new growth. Don't remove the mulch until the end of May and then do so a bit at a time. Late spring frosts can damage new growth and flower buds, much like apples and plums. Don't overwater! Yes, hydrangeas do require more water than most plants but overwatering actually prevents this plant from forming flower buds. The growers tell us that it is normal for this hydrangea to wilt a bit in the heat of the day and perk up in the evening as the temperature drops. And of course, fertilize!
For more tips see http://www.mahoneysgarden.com/blog/solutions-your-underblooming-endless-summer-hydrangeas.
|my Endless Summer 2009|
I recently moved my underperforming Endless Summer to the south side of my house. The soil warms faster there in the spring and this area receives full sun for at least six hours a day. I'll let you know how it goes.