There you go!

Now you've got a spike. And now that oyu have one you can compare them and see the spike looks quite different from the root. And now to answer your original question:
Quote:
Originally Posted by garyorchids My question is will the spikes naturally grow straight up, will they grow towards the light or will they need training with sticks and tend to grow towards the light. |
Your spikes will probably arch toward the light. If they are strong enough to hold themselves up you can just let them go or you can stake them (gently) if you wish.