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Potting on - what is this?

Hello; new to gardening (but the house I have bought has a beautiful established garden).

I've bought some bareroot Argyranthemum Grandaisy and the instructions are to "pot on into 9cm pots". I'm not sure what that means?

Looking what the previous owner left me I've got 9cm (diameter) round and 9cm square pots.  I've got John Innes no1 and no3 compost.  I'm guessing I should use the round pots and the no1 compost?

It then says keep them frost free; it's getting below 0C most nights at the moment so do I need to put the plants into the shed? 

Posts

  • K67K67 Leicestershire Posts: 2,507
    edited April 2021
    Square or round doesnt matter. I don't find all John Innes great for potting on and usually add sone multi purpose compost as well.
    They aren't frost hardy so put them outside inn the morning when it's warmed up a bit and bring then in at night.
    If the roots start poking out the pot repot into a slightly larger one before planting out finally in the garden when any chance of frost has passed usually last week,in May or even early June in you are further north.

  • Thanks - should they go in the sun? Got various options from full to part sun where I could put them during the day.
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