potting up dahlias

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michaelangelo Brainerd, MN May 24, 2010

After potting up small 4-pack dahlias from the nursey to 22 oz plastic cups (with large holes in the bottom) barely a week ago, quite a few seem ready for another pot-up. The plastic pots I have abailable (I don't want to have to buy anything more) are 8" diameter at the top (7" high) and 10" diameter at the top (9" high).

I want to put 2, 3 or even four plants to a pot for maximum (allowable) crowding and color. What size pot do you guys think I should use? Do they prefer the pot to be smaller (their roots to be somewhat "crowded" as I understand some plants need)?

I gave them 1/2 diluted dose of 10-50-10 when I potted them last week. Would you feed them again on this second pot up.

These are small Dahlias ("Hello Gorgeous Mix" about 2-3" classic flower and also Harliquin mix, about the same size flower).

Hope I can get some advice on this oon so I can get moving. I'm bored and it's raining :-)

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funtomatoes Douglasville, GA May 24, 2010

I have only grown dahlias in the ground, but they took up a lot more room than the size pots you have. I did grow harliquin mix one year, (loved it).
does the label have instructions on spacing? If so, that is what I would do.
Happy Gardening!

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flowAjen central, NJ(Zone 6b) May 27, 2010

They get really tall, I had 1 in a 10" pot(diameter at top) and had to tranplant it to a bigger one

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