Choosing crops to grow in school can be difficult; so many need harvesting during the summer holidays. In this respect garlic is ideal as it is traditionally harvested in mid summer. Although garlic is usually planted a little earlier than this it is not too late if you missed the boat earlier in the season. If your garden centre has sold out garlic bulbs can still be purchased online. The ground outside will be too wet and cold now, but you can plant it in pots so that it can start growing and be ready for planting out once the ground is a little warmer (and drier).
Garlic is planted a little deeper than onion sets; their tops should be just under the surface of the compost. But only just; if they are too deep they might rot. Once planted and labelled you need to find a place to keep it. Indoors will be too warm. If you have a school greenhouse or polytunnel you’re in luck as that would be perfect. A cold frame would also provide enough protection for these hardy plants. Failing that find a sheltered spot against the school wall which will be significantly warmer than in a more exposed location. If you are worried about them you could always splash out on some horticultural fleece (or a bit of polythene at a push).
If you follow these simple steps now you could be harvesting garlic to make garlic bread, and pizza with your class before the end of the year!
Another crop that you could be planting in pots now is broad beans. These have the advantage of being ready for harvesting even sooner than garlic. They have the disadvantage that not many children enjoy eating broad beans; however, they may enjoy flogging them to parents! Another advantage of broad beans is that they are a member of the legume family. These fix nitrogen in the soil and so improve the soil fertility for future crops.