Terminal Honeysuckle

How about a scented rose planted with a Clematis that flowers at a different time? That would give a long flowering period for you.

My suggestion would be a Hydrangea Petiolaris self clinging climber with lovely masses of large white lacecap flowers in May and June. Dark green leaves turn a lovely buttery yellow in the autum. Well drained moist soil and light shade so a west facing wall should work. Takes a while to take off but a lovely sight up a wall. I blue tac the wall either side of a branch to make the clinging branches take the direction I want which was to fan out wide across the wall. Cost about £15.

Why replace it with somethings which are just as prone to mildew as your honeysuckle? Roses and Clematis are just as bad. The spores can only lie dormant on living things so they are not in the brickwork. It has been a bad year for fungus on almost everything. Our honeysuckles which rarely suffer from anything until late in the season when they are pruned back to remove the damaged portions, have been attacked this year.
Not sure if Rose Clear is a systemic fungicide, but that is what you need. Also dryness at the roots is another factor. If the house wall stops rainwater getting to the roots, then a big plant is going to need a lot of water putting on it.

My honeysuckle has mildew some years but I don't spray it. It's the older leaves that are affected first and I remove these as necessary before they drop. It has never progressed along to the newest leaves and it flowers beautifully. Next year, I'm going to take Owdboggy's advice and water it well in spring. Perhaps a good mulch might also help.
This year, mildew has affected so many of my plants. I used to think it was in the soil but Monty Don said this is not the case. It's strange that some plants need more water to prevent mildew but it seems that the dampness this summer has caused it in plants previously free of it.
Perhaps OB can explain?

It is a peculiar habit us gardeners have of planting honeysuckle at the foot of a wall. They hate it! They don't like the dryness at their roots and the lime in the mortar and if it is a west facing wall, the dryness problem is excerbated by sunshine stressing the plant further. I would improve the soil greatly with garden compost or council green waste and plant something like a euonymus which will climb upwards, although not strictly a climber.

Thanks for your prompt replies. It's certainly given me plenty to think about. Owdboggy - Roseclear is a systemic fungicide, I am told. What living things would the spores lie dormant on? - our dog isn't showing any signs of mildew :-). When the first attack of mildew happened, it was in the Spring and I didn't realise what it was soon enough, but all parts of the plant were attacked, especially the growing shoots, and it was awful to see how quickly the plant collapsed.

Mildew is a constant threat which pops up regularly, but not just on honeysuckle, it can occur on lots of plants, Bernard. Dryness at the roots does increase the likelihood of an attack, and we've had some pretty dry weather this year. I'd give the honeysuckle another chance next year, but this time feed with growmore in the spring and again in June, keep it watered during dry spells. And spray at the first sign of attack.

Louloubelle has said it all.
I have just been digging out a really big patch of Rudbeckia (over 10 feet tall it was!) and the soil underneath it is dust dry. We have had nearly 2 inches of rain in the last fortnight. I would say that not one drop of it has reached the soil under that plant.
Walls really do most plants no favours at all.
I perhaps should have said that Mildew needs to rest on PLANT material, rather than just lving things. Mildewed dog would be very sad sight!