Plants that root in water or supermarket seeds

I haven't found a thread on this here - maybe I've missed it.
Anyway.... on the site that shan't be named ( spit on the ground and run backwards round a toadstool), I had a similar thread sans supermarket seeds.
I really enjoyed seeing and trying put the suggestions with varying success.

I would appreciate any suggestions. At the moment, I can't offer much beyond the obvious.

 

Penstemon, Salvia greggii, Weigela, Philadelphus, Fuchsia all rooted in water for our neighbour.

 

Being a lazy gardener, I like the idea of most of those. I have them so they're worth trying.
Not keen on philadelphus (sp) covered in blackfly and smells like after you've cleaned the filters in your car. Aureus OK though.

 

Persicaria "Red Dragon". I rooted some in jars of water on the windowsill in June and now I have 4 pots full of it (the kind of size you'd be charged maybe £10 or £15 for in a garden centre) ready to give to my friend tomorrow.

 

I'm sure I remember someone bringing a thread about rooting cuttings in water with them from the other place.

 

mints and elder seems to root well in water just keep replacing it

aroids and passionfruits also do well

 

Salvias. Especially the shrubby ones. I always do them in water now and have a constant supply for giving away / replacing any that perish over winter etc.

 

I've had rose cuttings root in water but they take a long time and it doesn't always work.

 

Anything with a stem with growth nodules (for leaves or branches) is worth a try. The ripeness of the cuttings perhaps matters so I take cuttings from early spring to autumn and just see what happens.

Rosemary, lavender, all trailers I've tried (e.g., Vinca, Ivy...), Geraniums (hardy and -non), Viburnum, Currants, Weigela have all rooted in a glass of water- eventually.

Rosemary apparently only roots in water when picked to be ornamental vase filler green for small flowers, try to root it on purpose and it will fail

My lazier than lazy rooting method before moving house was a large raised planter filled with leftover compost after toms etc, I just poked a hole with finger and plopped any cutting in and checked them in the spring. Some had rooted, some not but there was absolutely nothing for me to do. My kind of stuff

Regarding supermarket finds, some fruit seeds make great houseplants. Avocado is gorgeous until it starts pushing the ceiling up and has to go- but even the stems make perfect gnawing sticks for pets or plant supports or BBQ lighters.

Mango is lovely and ah so promising until one day before it's first birthday it suddenly kicks the bucket without any obvious reason.

Lychee is a slow grower but doable (and the seeds look lovely ). Citrus fruit are a gamble but worth a try. Papaya is my brickwall , I haven't ever been able to even germinate the seeds even though they are said to be "very easy". Sadly, the family dislikes eating Papaya so I can't repeat the experiment very often.

Dragonfruit seeds germinate very easily and shoot up to become the ugliest, spiniest, trailing and upright cactus. You have been warned. It doesn't have amicable tendencies.

Tomato and in particular, pepper and chilli seeds from SM fruit usually germinate and grow well, but as they allegedly can spread viruses and disease, it's important to draw the curtains before sowing the seed Ditto potatoes (and there I'd be careful and if any professional grower is nearby, best stick to bought seed tatties.)

 

@Thanks @Selleri . So much information! I'm going to have to read your post a couple of times and take notes.
I tried a supermarket spud once and it did, indeed, get blight so I never bothered again.