Here is more from Bob Flowerdew book "Good Companions" A guide to gardening with plants that help each other. Awesome numbers that looked at this article before.
Brassica ( plants in the cabbage family)
The members of the cabbage family need rich soil and plenty of lime. They benefit from herbs such as chamomile, dill, peppermint, rosemary and sage which be all be planted in the orders around the vegetables beds. Brassicas do well with peas, celery, potatoes, onions and dwarf beans. A good trip can be made if the peas are grown up the middle of the bed and flanked with potatoes plants and brassica. If the potatoes are wide spaced to get large tubers, they can be alternated with the brassicas. As the peas and potatoes are cleared the brassicas grow away, taking up the breakdown products as the old roots decay.
One of the hardier brassicas, they have the family tendencies, differing mainly in a greater tolerance for runner beans and a likening for really firm soil. They can be planted into an onion bed as it matures and will benefit from the onions' root residues and packed soil.
The commonest brassicas, these are terminal buds and to get them to swell without opening is a marvel of controlling nature. Constant unchecked growth in rich, moist conditions is required and can be aided and protected by strong herbs. Grow dill, mints', rosemary, sage, thyme, hyssop and chamomile nearby in the borders cabbages will also be happy growing in among a bed of onions or garlic. As these all et along with beets and chards, you can make a useful trip. Alternatively board beans, cabbages and the beets can be interpolated. Peas, potatoes and cabbages will make another successful threesome.
Plagued by the carrot root fly, numerous herbs and strong smelling remedies, mostly from onions, leeks and salsify, have been used with some success. Carrots' general health is better near chives, celery, lettuce, radish and tomatoes. They promote growth in peas but dislike anise and dill, although the latter discourage the foot fly. If left to flower, carrots attract hover flies and beneficial wasps.
Celery does well in the shade of beans and tomatoes and benefits brassicas by deterring cabbage white butterflies. It grows best of all with leeks. If left to flower, the celery and leeks will attract many beneficial insects, especially predatory wasps. More later about companion planting. Till next time, this is Becky Litterer from Becky's Greenhouse, Dougherty, Iowa
Hi! My name is Becky and I am a Master Gardener. I own Becky's Greenhouse in Dougherty, Iowa.