Carmen, that was a great question and thank you Gee for your answer. Will add Geoflora spikes on the next grow. Any thoughts on which one to use as a spike? They have veg 5.3.4 and bloom 3.5.5 npk's
OK maybe I should toss out a bit of a warning. Be careful if your topdressing or ammendment mix, whatever you are planning to use as spikes, be careful if it contains blood meal.
Rev's mix only has 1 cup per 20 gallons and it's mainly for cooking in tubs to get the process going, so it's relatively low dose, but if your spike material contains bloodmeal, you need to know how much, or experiment with spike amounts, as it may burn hot or possibly cause "The Claw" on a set or 2 of leaves.
The Gaia Powerbloom contains none and Rev's is relatively low dose, so either is pretty safe.
So
@Gidorah you likely could use Geoflora safely but definitely use the bloom formula. Check it's ingredients for bloodmeal. Make sure there isn't too much, but I doubt there is. Most flower blends are bloodmeal-less.
You can easily topdress your veg period so use the spikes to enhance flower.
All the babies I just planted in 10gals were spiked with flower mix.
The ammendments cooked in, or things like Geoflora, and EWC, will veg them just fine. It may veg a bit slower than having veg spikes, but they will flower much better.
I don't know much about using geoflora, but with Gaia I figure how much I need to topdress a 10gal pot over 4 weeks, then divide that amount by 4 , and use that much divided into 4 spikes. That equates to 4 tbsp per spike.
10gals x 6 tbsp/gal, so 60 tbsp per month, divided by 4= 15 tbsp. So 15 tbsp divided by 4 spikes equals 3.75 tbsp per spike. I round it up to 4.
It's not really that much more than topdressing alone, but it grows more roots than top dressing alone.
I also topdress 16 tbsp every week in flower.
You only get 1 shot at uppotting, and adding spikes to a pot only takes 5 minutes one time, so it's worth it.