Posted: 22/03/2015 at 16:04
Hello Jennie and welcome, always ask the question you will get an answer from the good people on this board.
Right children love things they can pick and eat so start your 4year old off with strawberries, peas, baby carrots. All can be planted by children along the edges of your boxes. I did that with my grand children, still do they love it. Buy your strawberry plants from a garden centre or nursery, you will get some fruit this year that way though more the next two years. Peas they pick from the bush and eat from the pod and why not they planted them. A small carrot variety will be quick growing and so sweet straight from the ground washed.
For your self divide the boxes into sections and plant rows of seed or plants, salad stuff such as lettuce or cut and come again salad crops can be sown on a fortnightly gap to give you greens for all summer and even into winter. Keep a diary and rotate your crops on a yearly basis, that means do not grow the same crop in the same place year on year, I used a four year cycle as one crop can feed the soil for the next years crop.
One tip be mean with your planting, a glut you cannot use or give away is heartbreaking, little and often and more interesting. Good luck, get some seed down, yes you will lose some though what grows will make up for it, eternal optimists us gardeners.