Yellowing alliums

Hi all,

My overwintered onions have gone yellow on the tips of some leaves and appear to have been eaten by something, now the garlic next to them have also started to go yellow on the tips why is this?

Totty

I agree. Probably short of nitrogen.

Adding nitrogen fertiliser should give a quick fix within days.

Once the soil warms there will be more nitrogen available naturally in the soil and it will put its self right anyway.

Yer pays yer money and yer takes yer choice.

What feeds are nitrogen rich ?

I had this problem last year.

Growmore is a quick fix for nitrogen.

Sorry, had a thought, some of "Bloodmeal, Hoof & Horn, Prilled Urea, Nitro Chalk, Nitrate of Soda" might be slow-release - I'm not sure which, but those that are would not be suitable as they will take too long to have an effect.

Sorry, had a thought, some of "Bloodmeal, Hoof & Horn, Prilled Urea, Nitro Chalk, Nitrate of Soda" might be slow-release - I'm not sure which, but those that are would not be suitable as they will take too long to have an effect.

From my o level chemistry days - all nitrates are soluble so you could stick them into water and leave for a while. The resulting mix should give a nitrogen boost.

Sorry Jay typed this while you were doing the same thing.

I also have yellowing tips to some garlic leaves.
As I know there's plenty of nitrogen in the soil could it just be Winter damage? The new leaves are ok.

Here the locals apply copper-sulphate on the grounds it keeps fungal problems at bay and keeps leaves green. I don't use it anything like as much, but on checking I did discover that leaves like sulphur because it helps the chlorophyll. My garlic and onions have just started to go a little yellow after some heavy downpours of rain, so I've given them a little dusting, just in case it works.