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Magnolia Grandiflora Gallisoniensis

AJQ
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AJQ Proficient

AJQ

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Posted

I got a Magnolia Grandiflora Gallisoniensis a couple of years ago. It seems to be growing steadily but so far it has not flowered yet.

Any thoughts as to why? As it is a reasonably sized tree.( Mature)

Other Magnolias around here burst into life every spring even the ones that are considerably smaller than ours.

Regards Andy.

Bangor, Norin Iron Zone 9a Min temp normally around -3 Degrees C, rarely -6C. Only 2 x -2.0C so far, verging on 9b this year. No snow or Frost this Winter. Several just subzero's this year, lets hope it stays this way. Normally around 5C to 10C + in winter, with lots of wind & rain. Summers usually better, 20C to 25 C occasionally 25C to 28C, also quite humid being a coastal town

Bilbo Proficient

Bilbo

Posted
Posted

Andy; for some reason most UK specimens seem to be grown against house walls even in Southern England where surely our temperatures (nor yours) require that.

I spose its cos they look good so planted and maybe - just maybe -  the extra heat helps induce flowering.

Est. eventual height - 30' plus.

I dont know how long yours has been in the ground but if its been over about 5 years a little Sulphate of Potash and a hot summer or two might do the trick.

For the record the best Mag I have ever was at the R.H.S Wisley Garden in Surrey.

It was a Campbelli (possibly even a hybrid with mollicosma or something).

It was just before you crossed the small wooden bridge to Battleston Hill (famous for Rhodos of all kinds) and it was a joy every Spring.

Sadly it fell a few years back in the Great Storm.

Regardez

Juan

Juan

AJQ Proficient

AJQ

Posted
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Posted

Thanks for the info Jon, It has been in the ground for 2 years now. How often should I give it a does of potash?

Hopefully we will have another hot summer like last year that may well kick it in to action. I'm just a bit puzzled though, as to why other smaller ones in Belfast seem to flower every year. As do the ones available in the local garden centers

Regards Andy.

Bangor, Norin Iron Zone 9a Min temp normally around -3 Degrees C, rarely -6C. Only 2 x -2.0C so far, verging on 9b this year. No snow or Frost this Winter. Several just subzero's this year, lets hope it stays this way. Normally around 5C to 10C + in winter, with lots of wind & rain. Summers usually better, 20C to 25 C occasionally 25C to 28C, also quite humid being a coastal town

Dave-Vero Grand Master

Dave-Vero

Posted
Posted

As you know, the coastal southeastern US, where Magnolia grandiflora is native, has steamy hot summers.  The tree seems happy in Portland, Oregon, which typically has summer daytime temperatures around 80 degrees F.  

A famous magnolia in Brooklyn, New York City, was (and I think still is) against a south-facing wall.  

I don't think soil fertility should be much of an issue, though drainage might be.

Fla. climate center: 100-119 days>85 F
USDA 1990 hardiness zone 9B
Current USDA hardiness zone 10a
4 km inland from Indian River; 27º N (equivalent to Brisbane)

Central Orlando's urban heat island may be warmer than us

Kelern Enthusiast

Kelern

Posted
Posted

Andy,

The best cultivar here in western Brittany, a similar climate to yours, is "Maryland". A cross between M. grandiflora and virginiana. An earlier and very prolific bloomer, it also grows faster with a slightly paler evergreen foliage. Galissoniensis, an old cultivar from the Estate "La Galissonière" near Nantes in south Brittany, needs more heat to bloom well here. Others cv. that would do well in Ireland are "François Treyve", "Victoria", "Evelyn".

Regards, Yves

Z9b, Crozon peninsula, Brittany, the far west region of France

Kris Grand Master

Kris

Posted
Posted

Dear Friends _ Do any one have some stills of this please !

iam a secreat admirer of this tree too !  :)

Love,

Kris  :)

love conquers all..

43278.gif

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