When to stop using cal. Mag

[Smokesteve]

Hi guys do you all have a rule for when to stop using cal mag in flowering?

 

[abadtrip]

When I cut the plant down.

 

[DoctorJohnson]

LOL, yeah.

If you need cal/mag, you probably need to keep giving it as long as growth is going on. I cut back on it once pretty late in flowering thinking I could coast to the finish but a calcium deficiency showed up fast (but then my water has almost no mineral content at all).

 

[Weed Pharma]

I stop during week #5 of flower.

 

[abadtrip]

My water is 5 ppm out the tap so i need cal mag

 

[Chefbjy]

Gh feed chart stops calmag in last 2weeks. Or 11weeks into the feed chart.

 

[oldjarhead100]

good answer abadtrip