Topic: Why are pumpkin leaves turning yellow? Photo

[Squash64]

Some of the leaves on my pumpkins (either Atlantic giant or Sumo) have turned yellow.  Anybody know why? Does it matter?  Apart from this, the plants look healthy enough and are growing well.

[Digeroo]

I have a red kuri with a touch of the same, growing ok but only one small fruit.

[flossy]

  Is it caused by a magnesiam defficiency,  can only think of that when I see yellow leaves,

  would give them a bit of a feed ?     ::)

[Sparkly]

I thought mg deficiency was more spotted yellow patches. Perhaps it is nitrogen deficiency. They are hungry plants. Give them a feed. The older leaves do start to yellow off anyway.

[Squash64]

I thought mg deficiency was more spotted yellow patches. Perhaps it is nitrogen deficiency. They are hungry plants. Give them a feed. The older leaves do start to yellow off anyway.

Would something like Maxicrop be alright?

[SMP1704]

I read that high potash feeds prevent plants taking up magnesium, so check the % for maxicrop - I can't remember if it is a balanced feed or not.

[davyw1]

Pumpkins i know very little about but my thought s would be at this time of the season the pumkin is taking all the feed it can get and leaving the leaves witout.

[saddad]

I gave you my opinion at the weekend... I just think it's a bit of natural variegation as the plants look really healthy... not the washed out yellow of old starved foliage...  :-\

[thifasmom]

have to agree with saddad, the plants do look very healthy. it looks like natural variegation to me too (quite pretty :))

[tim_n]

I'm in essex, my pumpkins are now all orange and the leaves have all dropped off and died back.

Could be the variety, could be the climate we've got down here.  Even sweetcorn is almost ready and the beans are just finishing.  Can't remember when I planted, think I blogged about it on my blog www.waark.com but don't have time to check now (just thought I'd add my 2c)

[Squash64]

Thanks everyone for the replies, and the PMs.
As some of you have said, as the plants do look healthy it might be just a natural varigation so I am just going to leave them alone and see what happens. 

[Suzanne]

I'm in essex, my pumpkins are now all orange and the leaves have all dropped off and died back.

Could be the variety, could be the climate we've got down here.  Even sweetcorn is almost ready and the beans are just finishing.  Can't remember when I planted, think I blogged about it on my blog www.waark.com but don't have time to check now (just thought I'd add my 2c)

Sopme of mine also doing the same tim. The squash on these plants look to be mature, and the vines dying back - a bit early would expect this in another 4 weeks or so. But then almost everything seems to be racing ahead of schedule this year except the tomatoes.  :)