Yes, you can grow tomatoes and cucumbers together in your garden without any major problems. Both crops need full sun and regular water, which makes them good bed partners. Just give them proper spacing and vertical support so they don't crowd each other as they grow.
I've grown both crops in the same raised bed for three seasons now with great results. The key was putting up a tall trellis down the middle of my bed. My cucumbers climb up one side while my tomatoes grow on the other. This keeps their leaves from tangling and lets me water and harvest both crops with ease.
Growing tomatoes near cucumbers works well because neither plant sends harmful chemicals into the soil. They don't compete for the same nutrients in the same way that some other plant pairs do. Both like similar growing conditions with 6 to 8 hours of sun and 1 to 2 inches of water each week during hot weather.
Watch out for pests that attack both crops. Aphids love tomatoes and cucumbers alike. If you spot these small bugs on one plant, check the other right away. Tomato cucumber companion planting means your pest problems can spread fast when both hosts grow close together. Keep your eyes open and treat problems early before they get out of hand.
Space your plants 24 to 36 inches apart to give roots room to spread and leaves room to breathe. Crowded plants stay damp longer after rain or watering. This damp air between leaves leads to fungal diseases that can wipe out both crops. Good spacing and vertical growth keeps air moving through your plants.
Train your cucumbers up a trellis or fence instead of letting them sprawl on the ground. Ground-grown cucumber vines will creep into your tomato space and tangle around stems. You'll have trouble finding ripe fruit buried under all those leaves. Vertical cucumbers take up less room and stay cleaner too.
Water both crops at soil level using drip lines or a soaker hose. Wet leaves invite disease, and both tomatoes and cucumbers catch fungal problems when their foliage stays damp. Morning watering works best because any splash on leaves dries before evening. Your plants will stay healthier with this simple watering trick.
I also add a thick layer of straw mulch between my plants to keep soil from splashing up during rain. Soil splash spreads disease spores onto lower leaves. The mulch keeps the ground covered and helps hold moisture between waterings. You'll spend less time with the hose when you mulch well.
Rotate your tomato and cucumber beds to new spots each year. Both crops leave behind disease spores in the soil that build up over time. Moving to fresh ground each season breaks this cycle. Plan your garden so these two crops return to the same bed only once every three to four years for the best results.
Read the full article: 10 Best Vegetable Garden Layout Ideas
