He is not too young, i have gotten beardies as young as 2 weeks nibbling on veggies. There are a few tricks to getting a beardie to accept veggies:
1. The best method is to, of course, have him exposed to veggies since day one. It is a bit late for this though, lol.
2. Have you tried wiggling the veggies? Dangling a green or strip of carrot in front of the beardie sometimes intices a feeding response, especially if your beardie is used to being hand fed. If he is not used to being hand fed start by hand feeding him worms and pinkie mice until he is comfrotable and then try the veggies.
3. Sometimes putting a dish of veggies int he tank and then putting mealies into it works well. The worms move around and the beardie will attack them, and hopefully will get a few bites of veggies too and realize they aren't so bad.
4. Some beardies are attracted to certain colors. Red and orange seem to be a favorite in many lizards. Try roses or other edible flowers (www.beautifuldragons.org for a full list of edible plants), also try carrots or purple cabbage. Although these are not good staple veggies, they are sometimes a good way to get them started.
5. Withold food for a day or two and then try giving veggies, a hungry beardie is more likely to eat veggies than one that is full or knows crickets are right around the corner.
6. Above all, don't give up. It is extremely important to the health of your beardie that he eats veggies, especially as he gets older. Constant acess to veggies gets them used to them over time and contantly trying to intice them to feed almost always results in a happy veggie eater!
Hope this helps!
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