I am not at all convinced that it is a necessary amendment. Most soils contain an adequate amount of silica, the uptake of which is dependent on plant species. And silica availability is also determined by an appropriate soil pH.

The Dyna Gro product was intended for hydroponics and container culture, neither of which offer plants easy access to silica.

Generally, the stiffening or strengtening of woody stems is age dependent and so somewhat related to pruning. The less hard one prunes annually, the less floppy, gangly new growth is produced. But plants that produce unnaturally large flowerheads - like Phantom - maybe inclined to droop or flop after a storm or heavy rain just by their nature, regardless of pruning methods.

This plant is grown in a container.

Pffft...not just hydroponics, but cannabis...where those huge buds, on forced and pushed cutting grown plants, will flop to the ground at every opportunity. Dyno Gro makes quite a large boast which has not been borne out by reality (ask me how I know?)

Age related...and also sun-ripened wood with a decent uptake of potassium (tomatoes, for example).

If in a container, then it might make some sense.

I very much like Dyna Gro fertilizer products for anything grown in a container but have never had any need for the Pro Tekt. And they are all far too expensive to use for general inground gardening purposes nor are they very necessary, either.

C'mon, Camp....explain how you know :-) Growing a little ganja out at the allotment? LOL!!

It's legal here, so I let the professional cannabis growers deal with all the intricacies of bringing pot to market. They've got it down to a science!!

Grief no - it would be nicked in a heartbeat...but in my spare room, in a gro-tent...Anyway, my main point is that Dyno-Grow and similar are perfectly reasonable fertilisers...but the addition of a brightly coloured ganga leaf anywhere in the advertising, means a 1000% increase in price (given a direct comparison with a similar generic fertiliser without the hydroponics (and $$$$ market). Plus the entire marijuana industry is beset by hyperbole and mad claims of gigantic yields and so on.

My first experience with a "super" fertilizer was decades ago with a local manufacturer of hydroponic ferts intended for the home cannabis grower. Of course that was never part of the advertising as that was long before any concept of legalization (although growing for the commercial market is still restricted and highly regulated). But the stuff was truly amazing - I had magnificent tomatoes and gorgeous, lush houseplants - and yes, about the 3 times the cost of any similar product by weight.

Oh, we have always had a flourishing hydroponics industry where images of cannabis leaves were definitely out and proud on the packaging. Usually brightly coloured and faintly sci-fi themed - lots of psychedic double helix entwined, distinctively palmate leaves. But in a decade of 'homegrown', I am a soil purist, growing in large tubs of John Innes 3, with a bit of potting compost and perlite and have found plain old seaweed based Maxicrop as effective as Bloom, Plagron, Dyno-Gro et al. Obvs use growlights though.

Heaps more 'organic' than I am anywhere else in the garden. Apart from sunlight, obviously.