I'm sure that would do just fine. If you could slip some re-bar into the hole in the first type, I would go with that.

However, I don't know if you'll need that. If you pound re-bar into the ground like 6-12 inches (the deeper you go, the steadier the trellis) and then slip electric conduit over that, then you've got yourself a trellis waiting to be strung up.

Well, would you train a squash plant with 4 or 5 three-pound squash on it up the typical conduit support usually used for tomatoes and the like? (not a rhetorical question)

Plantslayer - I've put alot of thought into what you're wanting to do, and the second one (Dekblock, from Lowes)isn't an option.
However, the first one has possibilities....I've got to go to Lowes today anyway, and i'll get the stock numbers of the hardware needed....

EG

plantslayer - This should work ok......

Using the block in the first picture, mount a 4x4 post on top of it. To do this, there are several options.

1. Mount one of these (item #97361 - Lowes) with a piece of all thread rod, washers, nuts....And fasten the post to the bracket with deck screws...

2. Drill a hole so this can be screwed into the end of the post (item #137397 - Lowes), then screw a piece of all thread rod into that. Insert the other end of the rod thru the block, then put a nut,washer, and lock washer on it.

A 2x4 connected between two of these posts (one at the top, the other toward the bottom), will make it pretty dadgum sturdy. Hope this helps!

EG

So I have both 1/2 and 3/4 conduit for trellises. You do not need these blocks for support.

My conduit is held by 24" SCH40 PVC buried in the soil, protruding ~1.5in above grade, with 5/8 rebar as additional support; 3/4 for the 1/2 in and 1 1/4 for the 3/4. Way cheaper than these blocks. And I have a lot of wind. A lot.

Dan

Thanks for the info EG. I think they also make brackets with a metal rod coming out of the bottom specifically made to be mounted on the first kind of block...

Being a cheapskate and not having my own drill (sad, isn't it?), I was considering just buying a large piece of 5/8" rebar, cutting it into pieces of the proper size, and simply sticking that into the hole in the block and several inches into the ground, then tying some kind of fencing onto the rebar with wire or ties of some kind. I figure that with the block there, the rebar would be stable and not slip in the soil. However, I am not sure how to keep the fencing attached sturdily. I guess rebar has ridges on it, so maybe just some wire would work. I can buy 20' of the 5/8 rebar for around $15.50

Of course, the wooden post attached to a bracket is a much more sturdy construction!

plantslayer - the bracket that you're talking about, indeed has a rod protruding from the bottom - and is bent on the end. This is for submerging into wet concrete, so that the post can be mounted to the bracket after the concrete has set up.

Of course, the wooden post attached to a bracket is a much more sturdy construction!

Would you expect anything less from EG, who builds all kinds of crazy, heavy duty things? Ha!

EG