Baby bunnies start nibbling on solid food at around 2 to 3 weeks old, right about when their eyes open (typically around day 10). At first, they’re just experimenting. They still rely on their mother’s milk as their primary nutrition until they’re fully weaned at about 6 weeks of age for domestic rabbits.
The First Three Weeks: Milk Only
Newborn rabbits are entirely dependent on their mother’s milk, and the feeding schedule looks nothing like what most people expect. Mother rabbits nurse their litters only about once or twice a day, for roughly three minutes per session. This isn’t neglect. Rabbit milk is extraordinarily rich in fat and protein, so a single brief feeding delivers enough calories to sustain the kits for a full 24 hours. Most nursing happens at night, with about 43% of feedings occurring in the first two hours after dusk. If you’re watching a nest during the day and never see the mother feed, that’s completely normal.
During these first weeks, the kits’ digestive systems are still developing. Their guts lack the bacterial communities needed to break down plant material, so solid food would do more harm than good at this stage.
Weeks 2 to 3: Building Gut Bacteria
Before baby bunnies can digest solid food properly, they need to populate their intestines with the right microbes. This happens naturally around 2.5 to 3 weeks old, when kits start nibbling on their mother’s cecotropes. These are special soft droppings that rabbits produce (distinct from their regular hard pellets) packed with beneficial bacteria, vitamins, and nutrients. By eating these, the kits essentially receive a starter culture for their digestive system.
This step is critical. Without healthy gut flora, a young rabbit’s ability to ferment and absorb nutrients from hay and pellets is severely compromised. If you’re raising orphaned kits, this is the stage where you’d want to source a fresh cecotrope from a healthy adult rabbit and mix it into their formula to replicate what the mother would naturally provide.
What to Offer First
Once their eyes are open and they’re showing interest in solid food, you can start placing small amounts of alfalfa hay and plain alfalfa pellets in their space. Alfalfa is the go-to first food for baby rabbits because it’s a legume hay, higher in calcium and protein than grass hays like timothy. Growing kits need that extra nutritional density.
At this early stage, the kits will mostly just mouth and taste the hay. That’s fine. They’re learning what food is while still getting most of their calories from milk. By about 4 weeks old, the balance shifts noticeably: milk intake drops and solid food becomes a bigger part of their diet. At this point, offer unlimited alfalfa hay and a small measured amount of pellets, roughly 25 to 30 grams per 450 grams of body weight. The emphasis should be on hay over pellets, since the long fibers in hay promote healthy digestion and proper tooth wear.
Fresh water should also be available once kits start eating solids. A shallow dish or a water bottle with a low-mounted spout works well for small rabbits.
Weaning Timeline
Domestic rabbits are typically weaned at around 6 weeks old. By this point, they’re eating hay and pellets independently and no longer need milk. Wild species follow a different schedule: cottontail rabbits wean much earlier, at 3 to 4 weeks, while jackrabbits take longer, around 7 to 9 weeks.
For domestic rabbits, the transition from milk to solids should be gradual rather than abrupt. A sudden switch stresses the digestive system at a time when the immune system is still immature. Research on weaning rabbits shows that the combination of diet change, separation from the mother, and an underdeveloped immune system creates a window of vulnerability. Digestive problems most commonly appear between 5 and 8 weeks old, typically one to two weeks after weaning. Signs of trouble include bloating, diarrhea, low body weight, and a distended belly.
When to Introduce Vegetables and Greens
Fresh vegetables come later than most people assume. For domestic rabbits, the general recommendation is to wait until around 6 months of age before introducing leafy greens and other vegetables. Start with one new vegetable at a time, in small amounts, over the course of several weeks. Parsley, dill, and endive are commonly recommended as first greens because they’re gentle on the digestive system.
If any new food causes soft stool or diarrhea, remove it from the diet. A young rabbit’s gut is still maturing well past the weaning period, and overloading it with unfamiliar foods can trigger serious digestive upset.
Wild baby rabbits follow a slightly different path. They can be introduced to greens like carrot tops, dandelion greens, and Italian parsley as soon as their eyes open, since their adult diet will consist entirely of wild plants.
Switching From Alfalfa to Timothy Hay
Alfalfa hay is perfect for growing rabbits, but it’s too rich in calcium and calories for adults. Between 3 and 6 months of age, you should gradually transition your rabbit from alfalfa to timothy hay (or another grass hay like orchard grass or oat hay). This mirrors what happens naturally as a rabbit’s growth slows and its nutritional needs shift. A slow transition, mixing increasing amounts of timothy into the alfalfa over a few weeks, gives the gut bacteria time to adjust without causing digestive problems.