Companion Planting Guide

Companion planting involves grouping plants together so that they can help each other to grow better. Growing certain plants together will also help deter insect pests ruining your carefully tended plants before you get the chance to enjoy them.

Companion planting also works in a physical way. Spatial interaction of plants occurs in most gardens naturally. For example, tall-growing, sun-loving plants may share space with lower-growing, shade tolerant plants.



  • Nasturtium attracts caterpillars, aphids and whitefly, so planting it alongside or around vegetables such as lettuces, cabbages, beans and tomatoes will protect them. The adults will lay the eggs on the nasturtium leaves instead. The nasturtium can be pulled while the eggs are at a junior stage to rid the garden of this cycle.
  • Plant marigolds close to crops that suffer from aphids and greenfly. Marigolds emit a scent that repels aphids and attracts hoverflies, which are a predator of aphids.
  • Foxgloves have a growth-stimulating effect on all the plants near it. It is also said to protect the garden from disease and strengthen tender plants.
  • Certain flowers are grown near edible crops in order to attract insects for pollination. Capsicums and eggplants, which have smaller flowers, benefit from having flowers nearby to ensure they get pollinated. Bee friendly plants include: calendula, marigolds, sunflowers, poppies, clover, nasturtiums, Queen Anne’s Lace, echinacea, borage and purple tansy.
  • Borage is a great companion for your strawberries.

Plant flowers in Tui Flower Mix, high quality planting mix containing potassium to enhance flower production and Acadian seaweed to promote strong root development, prevent root disorders and encourage plant vigour. Feed with Tui NovaTec Premium fertiliser – a slow release fertiliser providing a sustained release of easy-to-absorb nitrogen, to keep your flowers blooming.


  • Sage is a great herb to plant around celery crops, as it helps to keep aphids away.
  • Hyssop deters white cabbage butterfly from brassicas such as broccoli, cabbages and Brussels sprouts.
  • Basil improves the flavour of tomatoes when planted alongside. Basil can also be planted alongside capsicums.
  • Plant dill and rosemary next to broccoli.

Plant herbs in Tui Herb Mix a free draining planting mix, rich in nitrogen to promote green, leafy growth and continuous harvesting. Feed your herbs with Tui NovaTec Premium fertiliser.


  • Grow carrots and leeks together. Both have strong scents that drive away each other’s pests.
  • Garlic planted among roses will help deter aphids.
  • Asparagus, basil, carrots, celery and parsley are ideal companion plants for tomatoes to help each other grow. Tomatoes are also compatible with chives and onion.
  • Sweetcorn does well planted with potatoes, peas, beans and squash.

Plant vegetables in Tui Vegetable Mix, a high quality natural-based planting mix containing the right blend of nutrients to provide your veges with the best possible start and sustained growth throughout the season. Fertilise every four weeks during key growth periods with Tui Vegetable Food, a rich formulation of fertilisers including dolomite, blood and bone and sheep manure dust designed to encourage healthy vegetable growth.


Use plants to encourage good bugs which in turn eat the bad bugs. Plant a mixture of flowers and herbs among vegetables and fruit trees to encourage a healthy diversity of insects to move into the garden.

  • Make sure companions are planted at the same time as your edible crops in order to prevent insects from taking over the vegetable patch.

View a companion planting table here.

Excerpts taken with permission from The Tui NZ Vegetable Garden by Sally Cameron and The Tui NZ Vegetable Garden 3rd Ed. by Rachel Vogan. Published by Penguin Books. Copyright © Penguin Books 2009 & 2012

When should I plant
  • Jan
  • Feb
  • Mar
  • Apr
  • May
  • Jun
  • Jul
  • Aug
  • Sep
  • Oct
  • Nov
  • Dec
  • Harvest in 60-85 days

Post a comment

Companion Planting Guide Comments

  • liked your guide on companion planting last season so i am using it this season to the max

    gavin northover

    • That's wonderful to hear Gavin. Thanks for your feedback and happy spring gardening!

      Tui Team

  • Thank you for the info on companion planting. Will give it a go in my vege patch. 👌🏽


  • Thanks for this useful and easy to follow companion planting guide. I'm going to try to more of this type of planting this season (:

    Cath Walker

    • Thanks for your feedback Cath! :)

      Tui Team

  • I am a beginner gardener and would like to start a veggie garden would like to know where to start, how to start and when to start


    • Hi Raewyn, thanks for getting in touch. It's fantastic to hear you are interested in starting your own vege garden and discovering the joy of 'growing your own'. We can definitely help with that. Spring is the ideal time to start a vege patch as the soil warms and there are loads of vege options to choose from. Soil preparation, planting crops at the right time of year, and growing what you like to eat are key considerations. Then once your veges are planted, watering and feeding is important. To get you started we have a helpful guide here: Beginner's Guide to Vegetable Gardening which is a great place to start, along with our handy Planting Calendar which tells you when to plant crops in your region of New Zealand. We also have a large range of crop specific guides to help you get growing. Feel free to touch base with any specific garden questions you have. Enjoy and happy gardening ^Tui Team

      Tui Team

  • fantastic guide, so excited to my new found knowledge to action

    Charisse Huntley

  • Planting Guide was very helpful. Will follow the guide carefully. Cheers

    Sue Truman