Inonna Magazine

Authentic and opinionated magazine

Top Tags

How Much Sun Do Tomatoes Need for the Best Harvest?

Jul 10, 2024

The tomato is a sun-loving plant that needs lots of sunlight to grow and ripen the fruit we want. But how much sunlight do tomatoes really need to grow properly? The short answer is: the more sun, the better the tomato. But the amount they need is absolutely minimal, and the time of day can vary. Here’s what you need to know to make sure your tomatoes get enough light so they can produce enough ripe fruit for you this summer.

Do tomatoes need lots of sunlight?

Whether the tomato you choose is a small cherry or grape tomato, a bolognese tomato, or a large sliced tomato, home-grown tomatoes have a rich flavor that is better than anything you can buy at the grocery store. This wonderful taste is thanks to good soil, plenty of water, and yes, plenty of sunlight. While you can make improvements to less than ideal soil and water tomato plants throughout the season, increasing sunlight is often not possible with tomatoes that are already planted, so it’s important to make sure your plants get enough sunlight where you want to grow them.

For a garden, full sun means 6 or more hours of direct sunlight a day.

How much sun a tomato plant needs

Tomatoes need at least eight hours of direct sunlight a day to harvest. For best growth, store tomatoes in an area that receives direct sunlight from dawn to dusk. Sunlight not only promotes tomato growth, but also helps prevent bacterial and fungal diseases.

There is one exception: tomatoes grown in the tropics. Tomatoes in USDA Zones 9 and 10 grow best under six hours of sun; The intensity of sunlight in these areas means that it must be restricted for optimal growth.

The quality of sunlight is just as important as the amount of time a plant receives it. High-quality sunlight should be bright direct light for tomatoes. Sunlight does not penetrate trees or awnings; They hit the leaves directly.

Direct sunlight is most valuable between 10 a.m. and 4 p.m. The goal is to get tomato plants full sunlight during these prime times. As the sun moves across the sky, be aware of nearby plants and buildings that can cast shadows on the tomatoes.

Hot sun dries out soil quickly, so add a 2-inch layer of mulch around tomatoes to help these water-loving plants thrive while absorbing lots of sunlight. Chopped bark mulch, grass clippings, straw, or chopped tomato root leaves will help regulate soil temperature and conserve water.

How can you tell if a tomato is not getting enough sunlight

Tomato plants that don’t get enough sun grow differently than those that do. Look for these signs:

Slender, weak stems. Tomato stems can be overgrown because they have access to the available light.
Sparse leaves. Those long, weak stems won’t have many leaves on them because the plant doesn’t have the resources to grow new leaves.
The economy is growing slowly. Without enough sunlight to promote growth, tomato plants don’t grow much.
There is hardly any fruit. Tomatoes that get less than eight hours of sunlight don’t produce much fruit.

The 12 Best tomato cages of 2024

Let the tomatoes make the most of the sun

If there is little sunlight in your landscape due to trees or nearby buildings, you can still maximize the light by growing your own tomatoes with these tips.
Look at the sun.

Analyze the available light your garden gets. Record light patterns for each hour of the day on a simple landscape sketch. Yes, it’s time-consuming, but it allows you to see exactly the light coming into your growing space. There may be more light in you than you realize.

Look for the sunniest spot.

Identify Spaces that receive at least eight hours of direct sunlight. These 8 hours can be divided into long hours in the morning and several hours in the late afternoon. However, make sure to get at least four hours of direct sunlight between 10 a.m. and 4 p.m., as this is when the sun’s rays are most valuable to tomato plants. After mapping out the light patterns in your yard, make a plan to plant your tomatoes in the sunniest spots.

Use a pot.

Even leafy gardens, for example, often have some sunlight in the driveway or in the corner of the yard. Take advantage of this abundant sunlight by setting up a raised bed or placing a large tomato plant container in the growing space.