Rockwool cube sizes for germing

Smok3yMcChok3y

Well-Known Member
I've been using the 1.5x1.5 cubes to pop seeds in for a while but I've noticed when my ladies get top heavy they like to sort of roll around pivoting on the smaller cube. Does anyone use the bigger cube for starting their seedling? Would that really even make a difference? I run rdwc with net pot lids full of hydroton with the cube. I always end up having to rig up some stalk strings and tugging em around until they stay upright. I'll likely start running a screen and some more training for support on the next run especially with this mango since it likes to stretch 2 or 3 times height but im curious how everyone else gets em going
 

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Airwalker16

Well-Known Member
Ditch the rock wool altogether.
Just germ your seed, let the taproot get really long, and put it right into your net pot with hydroton. As long as you can have any amount (1/4”) of that root popping out the bottom, exposed to the humidity of the RDWC, youre golden. Just keep the nutes low. 150-250 ppm.
 

Smok3yMcChok3y

Well-Known Member
Ditch the rock wool altogether.
Just germ your seed, let the taproot get really long, and put it right into your net pot with hydroton. As long as you can have any amount (1/4”) of that root popping out the bottom, exposed to the humidity of the RDWC, youre golden. Just keep the nutes low. 150-250 ppm.
Ya I'm a bit of a gorilla in the garden and certainly wouldn't trust the wife fat thumbing all my babies haha. I'll stick with some sort of rooting substrate. I usually pop em in a towel. And when they split go straight to the cube. I have only ever lost 4 of the 100 or so I've run to rot so I don't dislike the rockwool just the weird top heavy pivoting. I'd also be concerned it would be worse without some sort of anchor. The pebbles are too losses fitting and the root mass hangs below the pot so it's not like it'll provide much stability. I dunno. I'll play around a it. Cheers for the ideas though.

Edit: also with the 6 Inc bucket lids that's a good bit of hydroton to wiggle a tiny little seed around in. Just feels wrong to me hahah
 

GBAUTO

Well-Known Member
What I've used for the past 3 years is a Grodan Delta6.5 4x4x2.5 cube in a 6" netlid w/hydroton. I start them in Rapidrooters and transplant to the cube once root mass has formed in the RR. Works every time and provides a very stable base. 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upload_2018-1-19_17-56-49.jpeg
 
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