The phrase "a patch full of" is correct and usable in written English.
It can be used to describe an area or space that is densely populated with something, often in a literal or figurative sense.
Example: "We stumbled upon a patch full of wildflowers during our hike in the mountains."
Alternatives: "a spot teeming with" or "an area brimming with".
And a veg patch, full of beans and peas, salad and onions, shallots and garlic, sweetcorn and potatoes, kohlrabi and jerusalem artichokes, courgettes and cabbages, pumpkins, radishes, chard, chives, rosemary, parsley and thyme.
We walked out past the veggie patch, full of asparagus and collard greens ("I use something from here in every meal") to a small wooden outbuilding.
If Adam and Eve had stayed on in Eden they would soon have started remarking that Cain's patch was full of weeds and that Abel was getting a bit above himself with his fan-trained apple trees.
A bunch of females (two Jettas full) had a patch of skin exposed to an hour of 900MHz radiation from GSM phones.
In addition to the restaurant, owners chef Sam Leach and FOH partner Beccy Massey have a patch of land – "around 10 full-size allotments" – where they grow the produce that ends up on the plate in front of you.
Tolkien fan Maddie Chambers decided to construct her very own, handmade version of Bag End — complete with a darling little vegetable patch and a hobbit hole full of handmade furniture.
Sprinkle them over a patch of well-drained soil in full sun, rake over, water in well and you are all set.
Not long ago, back in August, Weird Willy had provided a full afternoon of entertainment in a patch of sunlight beneath the dining-room table.
These tourists' heads would explode like a bomb full of nicotine patches if they knew that Sarah Jessica Parker herself lives around the corner.
But a patch of about nine square feet in full sun could produce a fall harvest for the holiday table.
