morning glory

I have grown some morning glory from seed - initially good plants but now they have grown a couple of feet and come to a standstill and the top leaves are turning white - I'd be grateful for any advice. Seems strange as the sweet peas I grew from seed are flowering and they are the difficult ones - or so I understand! Dodo

Mine did this too - but before they had got into the ground - about the 3rd or 4th set of true leaves (about 4 weeks ago).  I'd put them into the ground like that wondering if the roots needed some freedom, but they just did nothing 

I had been having problems with magnesium deficency in potatos and tomatos (also grown in the same compost), so decided that a squirt of the epsom salts mixture and a handful of fish blood and bone wouldn't do any harm whilst I was doing everything else.

After about 10 days, the morning glory had burst into action and grown away properly - I now have a good 8 - 10 inches of nice green growth on them 

I'm no professional gardener by any standard - but this did seem to do the trick for mine, perhaps its worth a try?!

I have grown some morning glory from seed - initially good plants but now they have grown a couple of feet and come to a standstill and the top leaves are turning white - I'd be grateful for any advice. Seems strange as the sweet peas I grew from seed are flowering and they are the difficult ones - or so I understand! Dodo

 
  Its a pity that its cousin, the white morning glory ie Bindweed, doesnt share in the reluctance to grow.