Newbie here seeking advice!

Hi all, my very first post here on your forum as I seem to have run into some trouble!
Firstly a quick introduction, I'm Georgia and live in Pembrokeshire, Wales. The weather is awful here so all planting has been done inside so far.
I have only been novice gardening roughly two months, and have gone absolutely mad; I currently have:
Veggie's: Tomatoes (Determinate and indeterminate ((Moneymaker and minibell)) )
Potatoes
Carrots (Scarlette and Amsterdam )
Flowers:
Sunflowers
Forget Me Nots
Aster ostrich feather
Freesia
Crocosmia
Herbs: Cress, basil, corriander, parsley and chives.
Everything was going well, I have LED grow lights and the tomatoes, sunflowers, asters and forget me nots are under them whilst everything else listed above are in windows/ in the mini greenhouse outside.
Until last night! My lovely sunflowers, currently 6 inches tall, began to wither and look VERY awful, woke up this morning and they're even worse.
I may have over watered them when I went to work yesterday morning, can one over watering completely kill them off?
I started them off in small propergator cells, then they got quite tall so I transplanted them into bigger pots (yoghurt pots with drainage holes lol) and was going to transplant them into final large proper plant pots when they were very large but now this has happened!
Should I just plant a seed in a giant plant pot and be done with it?
It was all going so well!
Thanks for your time and any help,
Georgia

 

Welcome to GC Georgia
The gang will be along soon with plenty help and advice
It is not just gardening but good fun

 

Hi,

Its rather difficult to say whats caused that wilt, best to carefully take one out of the pot and see what the roots are like.
If its overwatered then they will likely be dark coloured/black or even none to be seen if they have rotted away,
A healthly plant has fine white roots.


Its always a difficult balance watering seedlings, even for experienced gardeners, and we all have such failures every year, but using the right compost with plenty of horticultural sand and or perlite / vermiculite will give an easy draining medium that helps avoids waterlogging.

Not sure whats in your pots, but it does look more like a heavier soil than peat based ?

You might be able to save the existing plants, but often such a problem /check will set them back one way or another, so do sow some more now, they will soon catch up partic with this nice warmer weather.

 

@Georgia Watchorn to GC...lovely to have you with us and there's many members who grow there own who can give you excellent advice...i can't sorry as i don't do it but if you click on this link on the forum it takes you to many discussions on different things which are grown plus you could add your own discussion there also

https://gardenerscorner.co.uk/forums/edible-gardening.103/

 

Welcome to the forums Georgia. Sometimes you need to be cruel to be kind. Sunflowers don`t need to be molly coddled really, and are not keen on being over watered either. Stick a few seeds in a patch of soil, water them in - and turn your back on them - they will do fine

 

Hi, thanks so much for your reply, I am currently using multipurpose compost (Jack's Magic All Purpose Compost). Just checked the roots and they're a nice healthy white, perhaps I really did over water them!
I've planted a seed in a pot-large- outside and will leave it to it's own devices and water a lot less frequently, trial and error and see how things go
Thanks for the tip on the roots never knew about the black roots

 

Welcome to Gardeners Corner

My sunflowers totally wilted in the greenhouse

Just gave them a good soak, they've picked up and i'm planting them out

 

They look to me like they have suddenly been introduced to sunlight,.
I came home the other day and the new growth on a avocado plant was looking similar, it was not down to overwatering, it was down to me moving it from a shady position to a very sunny one.
The sun is pretty strong now, especially through glass.

 

It looks like nutrient burn/scorched by the sun as zigs says, do you own a cat

 

All of my dwarf sunflowers died as well

 

I think a friendly is needed

 

Oh all right then ......but they`re only sunflowers - have another go

 

Welcome to Gardeners Corner Georgia.

I would remove all the plants from under the grow lights as they could possibly be too hot for them now. Grow lights are generally used through the winter months into early Spring as there isn't enough natural light to help them grow. On the other hand if seedlings are grown without enough light they tend to grow (leggy) to tall and collapse.

 

Welcome to Gardeners Corner. Your led lights will not overheat your plants I have many of them and as long as you keep the plants from totally butting the lights you're okay.

At this point you've got nothing to lose so put them in bigger pots and don't overwater.

 

Tetters you get worse ....cruel that's the word needed