Serious Input Needed .....PLZ

gardenlady48(z5 IL)April 27, 2009

Greetings~

I am considering replacing my 2 NB hydrangeas and in there spot place 2 large pots with big leaf hydranges so that I could moniter the blue color. Especially after reading a thread comment by gardengal. The question is: Should I choose to do so.....how often would I need to ammend the pots to retain a blue flower head.....AND.....can they grow to a decent size in a pot.....say 3-4'?

Any experience with this issue along with comments will be grately appreciated.

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luis_pr

A little goes a long way. While I prefer to add garden sulphur myself (that nursery is closer) to my hydrangeas, I am amending to keep the pH in check and not to turn the blooms blue. Since some potting soils will not have trace amounts of aluminum, you may do better with aluminum sulphate. Foe example, you could add 2 tablespoons of a/s to a gallon of water (always check the label directions though). And yes, some mopheads will even grow to an indecent size in pots if you let them.

You will need to add amendments to the pot regularly, (i.e., forever) if you wish to keep getting new blooms in blue.

    Bookmark   April 28, 2009 at 7:10PM
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