Avoid putting these plant frenemies together!
Tomato & corn
Both tomatoes and corn are susceptible to the same pests—particularly the nasty corn earworm (also known as tomato fruit worm). When planted together, they can become an all you can eat buffet for these munching critters.
Carrot & dill
Carrots and dill might seem like a cute pairing, but dill can stunt carrot growth and may even attract the dreaded carrot rust fly.
Broccoli & strawberry
Broccoli and strawberries are both nutrient hogs. They compete fiercely for the same nutrients and could easily stunt each other’s growth.
Onion & peas
Onions and other alliums can inhibit the growth of peas and beans. It’s like they’re saying, 'This is my turf'
Cucumber & sage
Sage might be great with chicken, but not with cucumbers. It’s thought that the strong aroma of sage can inhibit cucumber growth.
Potato & pumpkin
Potatoes and pumpkins are both sprawling plants that can quickly crowd each other out. Plus, they’re prone to the same blight diseases.
Roses & alliums
Despite both being adored for their beauty, roses and alliums (like onions, garlic, and ornamental varieties) don’t quite make the best neighbours. Alliums can hinder the growth of roses, and the strong smell might overpower the sweet fragrance of your rose bushes.
Daffodils & tulips
While they’re both classic spring blooms, daffodils secrete a toxin that can inhibit the growth of tulips and other flowers.
Hydrangeas & sunflowers
Sunflowers, with their deep roots, are fierce competitors for water. Hydrangeas are also water lovers and will struggle to flourish when sunflowers are hogging all the moisture. In fact, any flower that needs a plentiful supply of water should be kept away from sunflowers.
Peonies & irises
Peonies and irises can both be prima donnas. They compete for the same nutrients and space and can easily crowd each other out.
Sweet peas & narcissus
Narcissus bulbs (including daffodils) produce a chemical that can inhibit the growth of sweet peas.
Camellias & azaleas
While both are acid-loving plants, camellias and azaleas often suffer from competition due to similar growth habits and nutrient requirements. This can result in nutrient deficiencies and stunted growth.
In Perth’s Mediterranean climate, the dry summers and sandy soils can pose unique challenges for plant pairings. Here’s what to keep in mind:
Water requirements
With summer water restrictions in place, choose drought-tolerant companions. Make sure you’re pairing plants with similar water needs. For instance, rosemary and lavender both love the sun and need little water, while leafy greens like lettuce and spinach thrive in a well-irrigated spot.
Sun exposure
Some flowers wilt in Perth’s harsh midday sun. Keep delicate blooms like fuchsias and begonias in shady corners, and reserve sunny spots for sun-worshipping geraniums and gazanias.
Soil considerations
The sandy soil of Perth can drain water quickly, so mix compost into your beds for moisture retention. Also, ensure plants with similar pH requirements are grouped together.
Soil salinity
The sandy soil of Perth can have higher salinity levels, so make sure you’re not mixing plants sensitive to salty conditions with those that can tolerate it. Tomatoes, for instance, don’t do well in saline soils, while asparagus thrives.
