A temporary fence isn't that hard. You could get a piece of PVC pipe and hammer it into the ground, and use that as a pole to support plastic chicken-wire type stuff. The pipes are a few dollars, and a roll of the wire can be found at Wal-Mart for like, seven bucks.

If you're not up for that, you might consider getting a 4' x 8' piece of deck lattice and tying or leaning it up. The super-cheap ones are less than $10 at a hardware store.

My black lab loves sticks! Last winter, he decided that my rose bushes in containers make perfect snacks. In desperation, I purchased a roll of plastic covered wire fencing for $32 from Home Depot. The wire is stiff enough so that it doesn't really need any support poles to hold it up. It's a pretty long piece of fencing. I simply unroll it around my 24 rosebushes placed in a double row. My dog quickly lost interest and searched elsewhere for his sticks. The fencing is about a yard in height so that I can easily reach over the top to tend to my roses. I purchased another roll of fencing this year, cut it in sections, and fastened the separate rolls around newly planted trees. I'm also using it to build compost bins to store leaves and kitchen scraps. It has many uses; so for a small investment you wouldn't be wasting money. And you'll definitely save your tomatoes and garlic from puppy demolition.

I've been lucky. Each time our puppy started tugging on my plants or digging I've had the water hose in my hand and squirted her with it. Didn't take her long to get the message to leave things along and to quit digging. I also cleaned out a 2 liter coke bottle, removed the label and put some puppy kiblets in it and tightened the cap real good. This is an outside toy only and she loves tossing it in the air and it keeps her busy and out of trouble.
Forgot how active a 11 wks pup is, hope one of these will help you. Good luck

Sounds as if the pup is left outside alone? What bred is the dog?
If this is so then you'll have a very hard time keeping him/her from chewing on plants without putting up a fence either around the plants or making a pen for the pup.
If you choice to pen the pup up please make sure it's in shade and has a place to get out of the rain. It will need lot's of attention an unattended dog makes for an unhappy dog.

My two dogs stay with me all the time. If I go outside they go outside if I come in they come in. Lacy the younger dog knows my moves and if I start to head outside and she's in the bedroom she'll come running to go out with me. If I'm outside and the older dog doesn't want to come out he stay's with DH. The only time the dog's are alone is if we go somewhere and it's not for very long half a day at the most. Both dog's know when it's time for DH to get home and they both start listening for him to come threw the garage door and when they here it both jump up and wait for him at the kitchen door, then as soon as he comes in they both welcome him home like he's been gone for a week LOL.
Fact is I can't get to him for the dog's till they get their welcome in then I get to kiss him and ask how his day was.

Dog's live in packs and you are the leader or should be the leader, they need the social life.

You can leave it in a dog crate inside to help the pup get use to what is acceptable behavior, Do not close the pup in the crate just teach it to stay in the crate and in time the crate will be it's safety place to go.
I don't remember where I learned about potty training a pup but this is what I'd learn. Put a collar and leash on the pup and keep him/her with you at all times while your up. Take the pup outside every hour. After a meal or drinking take him/her out within 30 minutes. This way the pup is with you and you can know when he/she needs to go outside. It does not take all that long, depends on the dog though some take longer to train.

Maybe someone knows of a good book to help train a pup or you can go to petsmart training class.

All that said any animal you have needs love, care, training and lot's of patience.

Thanks so much for all the helpful idea. I just realized I said she was a puppy! She is not a puppy anymore even though she is 3 years old she still acts like a puppy sometimes.

She is a 13 pound terrier/poodle mix. She is normally very well behaved in the yard. We only leave her outside for 10 mins in the morning and 15 mins late at night to do her business. She is kennel trained and knows our schedules well. When we leave for work, she is in her cage waiting for us to lock her up. She also leash trained and understands basic commands and almost always obeys those commands.

Its just recently that she started doing this and getting more daring. She stays away from Oleander. I caught her playing in there and now she stays away from it and makes a wide track around the plant/bed.

Its just the garlic and the tomatoes she goes after. She just loves to eat them.

Maybe there is something nutritional in those things that she needs. Mince up some garlic and tomatoes into her dog food and see if that helps. Wild animals have an inate sense of what they need nutritionally. Domesticated animals have not completely lost that sense.

Interestingly, people follow wild gorillas and chimpanzees around and note what they eat when they are sick in order to discover new plant derived drugs.

We think she is being naughty. Maybe she is just being smarter than we think :-)

Have you thought about giving her her own tomato plant? I know that may sound silly, but right now I would give anything to have my little helper back in my garden digging up grubs and eating some of my tomatoes. We lost her to cancer on Wednesday and the garden is just not the same without her. She used to wait until I went inside and would go straight for my mother's memorial garden and just dig dig dig in the second tier....don't know what was so tasty on that level of the garden, but she loved it. I just caught her a few nights ago and just let her dig to her hearts content...the plants can be replanted....
Last year we planted her her own tomato plant that she would not get in trouble for picking..just cherry tomatoes....she lived for those summer tomatoes and then would bark at the door to come back in and wash the dirty nosed tomato smeared face down with a big lap of water, leaving all her dirt and seeds behind to sink to the bottom in the water bowl.
BTW, garlic can be dangerous for dogs...it can cause red blood cells to break down if too much is ingested.
Erin & Angel Socki

So sorry about dog passing away, Ladybugfruit, but what a great story of your friendship, and a great idea!

Yes, not too much garlic. Here's list of things dangerous for dogs to eat.

Here is a link that might be useful: Dangerous foods for dogs

Yes I know about the garlic. we planted over 30 cloves and I lost maybe 12 of them. Now she can't get to them.

Sorry about your dog. I do not know what I would do I lost my dog.

no help but i feel your pain i have a 10 month old airedale and she is a challenge!!!! i have a doggie dog and she is free to come and go with my other 2 dogs she sleeps all day and roams the yard at nite i never know what new headache i will wake up to but every day is a new day around here since we got her and do you know how big a hole she can make with one swipe on she hoof oops i mean paw LOL

Liquid Fence is the best stuff I have EVER used! You can purchase it at your local nursery or online. www.liquidfence.com It will keep everything out of your garden. It is the only thing that has helped with my rabbits and the neighbors dogs. Good Luck!

Happy Gardening - Kara