Question
does fertilizer makes violas grow better.

Answer
Depends.

If the Soil is good Soil, adding 'fertilizer' that has nutrients ALREADY in the Soil can make Violas grow WORSE.

You read that right.

WORSE!

How's that?

Take Potassium.  Even i you THINK your Violas show symptoms of Potassium deficiency, you can't just run out and buy Potassium Fertilizer.  'Plant Food' is serious stuff.  Giving your plants too much Potassium is sort of like giving them too much HEAT!

Why?

Because excess Potassium, like excess Heat, does BAD THINGS to Violas and other plants.

Because unlike Nitrogen, which waters out or evaporates, Potassium STICKS to Soil.  And Potassium STAYS there until someone uses it.

If that someone happens to be your Violas, and they already have plenty of Potassium, bad things start to happen.  The most common of these bad things is Magnesium or Calcium deficiency.  Potassium molecules have very big egos.  Actually, they are your basic bullies.  They will just take ALL the spaces in the plant that need Magnesium and Calcium.  There is NO space left for the Mg or the Ca.  And you get a shortage.

Hard to believe.  But true.  Basic biochemistry.

So, you see, Fertilizer can make Violas grow better.  Or it can make Violas grow worse.  It depends on the Soil the Violas have.

Any followups?  You should have at least one.  Thanks for writing.

THE LONG ISLAND GARDENER