So Lucky was having some stool problems. His pathetic little grunts would wake me up at 3:00 in the morning, and I felt so bad for him as he struggled to do his business. He's only two years old. There has to be a solution for this.I decided to grow wheat grass to see if it would help with his problem. Now, I have a brown thumb. When I try to kill a plant, it grows. When I try to grow a plant, it dies. I decided that I needed a kit to get started, so I ordered this.First strike against it....no instruction manual. Hmm. Now, I did order a three-pack of growing kits, so I'm not completely stupid. I figured that I should combine one of each of the packets from the growing kit. So far so good. I put them into the little planter, which I hope I've assembled correctly. I should have been good to go, right?A few days go by, and nothing happens. Hmm. These are plants. Perhaps they need water?That seemed to do the trick.Now, I purchased this for my cats. I specifically purchased it for Lucky, but I figured both cats would make liberal use of it. It turns out, only one cat is getting any use out of it at all, and it's the wrong cat.You see, Azrael has made it her personal mission in life to stand guard over this thing to make sure that none of the grass seeds ever poke out of the green screen. I'm not even remotely kidding. It has been about a week, now, and I rarely see her move from standing over top of this. When a sprout does threaten to reach the screen, she finds a way to pull it out. She'll then eat the green stalk and leave the rest behind.That's when Lucky enters the picture because he loves batting the remaining roots and seed around. He even went so far as to leave one on my pillow yesterday, and I'm pretty sure that the noise I made when I first saw it could be classified as a scream.On the one hand, Azrael's insistence on making sure that the little blades of grass don't go *is* keeping her from eating all of my shoe laces, and that's a huge bonus. A single pair of shoe laces costs about the same as this planter, and she goes through two pairs a week. Essentially, this is a good investment if you take that into consideration alone. However, if I want this to see any benefits on Lucky's digestive health, there is a good chance that I'll need to buy another.UPDATE: If you are going to buy this, do not, I repeat, do not buy the seed kits that the company also offers.One afternoon, I came home from work with a weird smelling house. It wasn't strong, but it was definitely unpleasant. It smelled like someone had some really bad halitosis. I checked my kitties, and their breath was not compromised. So I waited it out.I woke up the next morning to find that the smell had become unbearable, and I had no idea where it was coming from. I tore apart my kitchen looking for it to no avail. It was only later in the day, when I checked the water level on the planter, that I realized that the smell was the growing medium that they include with the seed kits.The stench was horrible. I cannot over emphasize that enough. It is one of the worst smelling things I have ever had the misfortune of experiencing. I almost threw the entire thing away because I didn't want to deal with cleaning it. Instead, I brought it outside and sprayed it off with a hose using a liberal quantity of my car soap. That smell was stuck in my nose for the rest of the day, and my hands still had that smell even after I washed them.I'm leaving a four-star review for the planter because it does what it is supposed to do. I will not leave such a pleasant review for the seed packs.UPDATE:I have a couple of additional comments here that might make the experience of owning this planter more pleasant to would be buyers.First and foremost, you do not need a whole packet of seeds. In my second attempt at growing, I used Mircacle Grow soil that you can usually find at Ace, Home Depot, or even Costco. I used a half of a packet of seeds, and they still came in extremely thick. For my next round, I'm going to try a quarter packet to see how it goes.The grass really took off. On Saturday, I noticed a few shoots peeking through the grate. On Sunday, I noticed that Azrael had apparently gotten bored with attacking the shoots, because about a dozen of them had grown past the grate into bona fide blades of grass. On Monday, I had a large tuft of grass about four inches high, and by Tuesday, they had grown so large that they couldn't support their own weight anymore. A week has passed since then, and they are still very healthy looking. Except for the fact that they won't stand up.A deeper planter might resolve that issue, but my goal here isn't necessarily to have something that is aesthetically pleasing. My goal is to provide my cats with a little bit of grass to munch on to help with their digestive health.So far, I don't see my cats eating the plant anymore. However, I know they are because they are leaving blades of grass all over the house.I'd say that this is a win overall. There are just a couple of minor gripes, but I'm satisfied with my purchase.My cat loves it but she wishes it would last longer. Once the appropriate size his reached my cat only has about a week, maybe two, to enjoy her indoor grass.The seeds sprouted so quickly. It's very nice and so simple. I just spray water on the grass, not too much water. The kids haven't eaten it but they are curious about it.I received this product 5 days ago. The package comes with zero instructions and honestly zero information that I believe would be helpful to those that purchase this product. I shouldn't say zero instructions the package has a drawing for each step. You will likely have results if you just follow the drawing. But you will also have mold. I followed the instructions from the company website. You get a large portion of seeds and vermiculite. Vermiculite is a perfect medium when starting seedlings and will promote root growth. Vermiculite can be mixed into potting soil to increase water RETENTION. Vermiculite retains water. The biggest design flaw with this product is the seeds sit on top of a water retaining substance with no drainage or air flow in a plastic container on a rubber mat. Seed starter mold farm is a more appropriate name. However, I am giving it 3 stars because the seeds sprouted within a day. It seems sturdy. Having a little understanding and experience with soil and indoor plants I made some adjustments. So I hope this helps people that purchase the product with no experience. Your paper towel really only needs to be damp. The seeds will retain water. The vermiculite will retain water. When you add the seeds to the top of the vermiculite do not water. The seeds have already retained the moisture. Water sinks. So even if the top looks/feels dry I guarantee it's not dry at the bottom. Because of the design flaws I listed waterings honestly could be using a spray bottle in the same room as the seedlings lol. I just adopted my first cat so I am no expert whether you can feed them mold but I do have an understanding of indoor plants.The kit comes with seeds and substrate, which looks like Vermiculite. The rubber foot takes a little while to unfold & lay flat. Once settled this thing is very stable. The rubber foot creates a great deal of friction so I'm confident my 2-year-old tomcat won't knock it over. I put it on a table a few inches from a south-facing window, watered it daily, and had grass in about a week.I’m ordering a second one of these planters. My cat tells me that it is agonizing to wait for grass to grow between plantings so I need to be able to grow a new one before the old grass is finished. This is the best and simplest way to grow cat grass I’ve found. As others have said, the seedlings will push up the green grid (Mother Nature is strong). However, the grid keeps my cat from pulling the grass up root and all which is his favorite thing to do. I use clear packing tape on four sides to hold it down. It would be nice if the planter had some kind of latch.This is just seeds. In the picture it showed it in a planter so I assumed it came with the planter. Usually when I buy a cat grass kit it always has the “pot” to grow the grass in. I had to order after I received this item the planter which makes this a bit pricey compared to what I normally would pay at Pet Smart.Unfortunately there are several complaints about this item, all of which are completely unnecessary as the customers clearly have no idea how to sprout seeds.If it rots, starts to smell, you find mould growing, or hardly anything grows it is ENTIRELY your own fault and is either down to far too much watering or burying the seeds.Simply add the vermiculite or compost, if you're doing further batches, sprinkle water on it till it starts to come out of the bottom of the container. Tamp it flat, empty the loose water out.Sprinkle a few seeds, enough to give an even covering, (don't dump a ton in there) onto the surface and gently tamp down, ensuring all the seeds contact the surface.Done. Leave to one side. It will start to sprout in 2 days or so, then put in a bright airy position, but not in direct sunlight.Ensure the growing medium does not dry out, spray with water or water from below by adding a little to the dish underneath occasionally.Easy.