When should I transplant?

i should wait till the clones make a really good root mass in the pots ,or you could pot them up in to a bigger pots let them make a root mass in the bigger pots them pot in to the 40gal pots,mac,

 

Wait until the roots come out of all sides in your current pot. Your plant being 1-2 feet tall would also be a good idea.

 

I'd put them into their final pots now. I've read about transplanting into successively larger pots but that doesn't happen in nature and they do just fine. If they were recently transplanted into those pots you might wait until they grow enough roots to hold the soil together.

 

hi 'Cactus Ed ,,in a away i agree with what you have said ,which if the op had been a grower before would be ok ..but i think he is a a new grower ,and a lot of new growers tend to over water the plant if its a larger container ,,( or under water it ) ,,so myself i'd pot the plant up jut one more time just to get a bigger root ball ,before the final potting up ,,,mac

 

yea that would be ok ..weeds a fast grower so that will be ok get a good root ball in that pot then in to the 40gal container ,,your goin to get a Big plant them ,best of luck ,,mac.
ps like the tattoos mate ,,,mac.

 

id wait till the root start to go around the bottom of the pots or till you see roots coming out of the bottoms of the pots ..mac..

 

yea it'll grow ok in the 30gal pot .just be careful you dont over water or under water the plant ..i taken it there are holes in the bottom of the 30 and 40 gal pots ,luck with ya grow ,,mac,,

 

IMO the less you transplant the better off youll be.

 

If you have a place with partial shade you can put them there for a couple of days before full sunlight. If not you can slowly let them get accustomed to full sun over about 3 days. I put out a couple about the same size as yours the other day from T5s into full sun but in a spot that only gets full sun a few hours a day and after 3 days I put them in their final spot and they've done fine. You can google hardening off for other opinions about how to go about it.