Id be worried if your delphiniums aren't showing, I'm in the south east and mine are already around 2ft tall. As @B3 says, it might be they are being eaten? Or maybe they died over winter. Not sure about Lupins, I gave up on them as they got munched everytime I tried to grow them!
Where are my delphiniums? is a commonly asked question at this time of year. It is probably the tiny black slugs that eat them under the soil. As @Fairygirl says an opportunity to grow something new. Sometimes we have to move on no point trying the same thing over and over a waste of money, also avoids future disappointment.
RETIRED GARDENER, LIVES IN SOUTH NOTTS, SOIL CLAY.
'Tis sweet to visit the still wood,where springs. The first flower of the plain. Longfellow.
Yeah my lupins are a good foot tall, in the past I've lost them I think due to excessive wet. Delphiniums either got chomped or didn't hold up as my border is quite exposed, they are very nice though so may give them a shot elsewhere.
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I am in the North and Lupins are about 2 foot tall and Delphiniums 1 foot.
Sorry to say, you have probably lost them.
for the fag ends of the aristocracy.
S.Yorkshire/Derbyshire border
Plenty of easier plants to grow
Unfortunately, I think you've had it with those @sarahlouisehot, so maybe worth looking for something to replace them.
I live in west central Scotland - not where that photo is...
As @Fairygirl says an opportunity to grow something new. Sometimes we have to move on no point trying the same thing over and over a waste of money, also avoids future disappointment.
'Tis sweet to visit the still wood,where springs. The first flower of the plain. Longfellow.