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Sainte-Catherine-de-Hatley, Quebec, Canada

I have some field pumpkins in pots (1000ml) they have about 5 leaves now and I noticed interveinial chlorosis I gave mg fertilizer and it became total chlorosis but I am giving regular nitrogen. What is happening?

3/3/2026 9:12:19 PM

Grittyville, WA

There are a lot of potential pitfalls when the roots are restricted. If the ph gets off, thats one way to cause issues. Post a pic of the leaves? Is it the older or newer leaves? But, growing a small pot its a futile game of whack a mole. As soon as you correct one problem, another may show up.

3/3/2026 10:37:57 PM

Grittyville, WA

Other nutrients can cause chlorosis. Off the top of my head, zinc, manganese, iron, sulfer, and even calcium can cause various un-green colors. Welcome to the deep end of the pumpkin pool.

3/3/2026 10:42:31 PM

Bethlehem CT

I would try hitting them with a general micronutrient blend, that will likely straighten it out. It is good to find this out now. I would consider using a different seed starting blend in the future.

3/4/2026 6:07:03 AM

I, of all people, have to ask what 'mg' fertilizer is.
In fact, what ferts and what amounts/frequency would be cool to hear. No problem if you don't want to disclose this.
eg

[Last edit: 03/05/26 7:11:31 PM]

3/4/2026 9:13:12 PM

question on size of root area there growing in. is this in a way growing a chicken in area size of a egg

3/5/2026 12:48:46 PM

Hadley Ny

I agree with Don. Are you starting your plants in these containers or are you growing them in there for the season? 5 leaves on a starter on a field kin should be in the ground. You are already growing a plant in a quart container which is not big enough for the existing plant.

3/5/2026 2:08:27 PM

Eugene,OR

What is the soil temp?

3/5/2026 4:13:47 PM

Upa Creek, MO

1000ml is way too small to grow in. That's roughly 1/4 gallon and I find plants get rootbound fast in much bigger containers.

3/5/2026 6:18:13 PM

New England

Wait, chickens dont grow in eggs? Crap I knew that was a myth, every time I crack one I don't find a chicken :-(

3/5/2026 9:55:07 PM