Some fruit trees just take a little longer to start producing than others, citrus tends to be a bit slower than some of the summer stone fruits, for example. One tip is to shop at a good nursery and speak to the nurseryman about which varieties are better locally suited & which will bear fruit sooner. Often you can buy trees that are a year or two older but they cost a little more.

Re veggies, we have found zucchinis to be very prolific - so much that we've had far too many in past years, and have cut back to only having one or two bushes each summer. Pumpkins are also good if you have space and get them into the ground early in spring, smaller varieties like butternut and jap are good if winter arrives early, the big ones may not get ripe before the frosts. Another excellent crop if you have the room is potatoes, they grow bazillions of potatoes and you can start harvesting early for little new potatoes and also leave some in for bigger potatoes later in the season. Good value too in that you can replant some of them for the following years so the crop keeps renewing itself, kwim.