I have recently moved to the country and this is my first year of veggie gardening on this property. Last fall I built 2 raised beds and got a bit carried away planting porcelain garlic. So until I create more space, my main option is to plant something that does not need much space amongst garlic plants and that won't interfere w garlic harvest sometime around mid July.
I have some snap pea seeds but read that garlic and legumes aren't a good combination. Radishes? Lettuce? Other?
We're apparently in zone 8a (on Canada's west coast) and have had a cool wet spring so far, but warming up now.
All the onion family are good for use as planting companions or as we call it plant / insect deterrents, I grow a row of onions beside my carrots as it helps detract the smell of the carrots that attracts the carrot root fly.
I grow it beside Roses, it helps keep greenfly and other bud eating insects at bay, you can also crush it and mix it in a gallon of water to water your Roses and this helps keep other insects at bay.
salad plants are nibbled less if garlic or onion plants are close.
at the end of the season, you still have the garlic to eat or store when the season for picking is there.
Some folks use Tagettes also as a deterrent for there veg, my dad used to sow a border of these plants around each veg bed and they were attacked by greenfly but they left the veg alone, so all the old methods still work today. My Dad when Planting Roses used to throw in the bottom of hole the old fat from the roasting trays, then in went the rose bushes, fill the hole with the soil and feed, then plant a couple of cloves of garlic, he never had any form of diseased Roses either on the leaves or flowers, he reckoned the fat was taken up by the roots and made the foliage have a coating to prevent insects chewing them and the Garlic oils was also taken up by the roots and was therefore in the foliage, true or false it worked, he won prizes for his Roses.
There are lots of other plants that should protect each other and also some that should not be grown together, so a book will throw more light on the subject if you can get to your local library.
Good luck, WeeNel.