How Much Sun Do Tomatoes Need? The Age Old Question - Plant Something Long Island - Live Better - Grow Better (2024)

Used in a wide variety of salads and in many other recipes, tomatoes stand among the most popular vegetables on Earth. They are succulent and delicious, relatively easy to grow both indoors and in the garden and are rich in vitamins and antioxidants.

Despite their popularity, many newbies wonder how much sun do tomatoes need to grow and ripe well. For this reason, we decided to answer this frequent question. Stay tuned to find out the answer.

How Much Sun Do They Need?

To put it plain simple: plenty. Tomato plants need at least six hours of full sun exposure daily, but if you want to achieve the best results, increase the yield and grow sweeter fruits, you might aim to give your tomato plants at least eight hours of sun per day.

The reason why tomatoes need so much sun is simple: the plants transform sunlight into energy, the energy they then use to grow strong, to bloom and to produce their fruits.

However, when I say that tomatoes need a lot of sun I’m referring to the tomato plants.

Tomato fruits don’t really need sun to ripen, they actually mature faster in the absence of the sunlight. So, here comes the tricky part. If moving your tomatoes in shade is easy if you grow them in pots, you will not be able to move the tomatoes planted in your garden.

Therefore, you might want to ensure a partial sun exposure throughout the day and plant your tomatoes in a spot with partial shade.

As if all this hassle was not enough, you might now want to determine if you want to expose your tomatoes to morning sunlight or to afternoon sunlight. Don’t worry, the answer is below.

Morning Or Afternoon Sun: Which Is Better?

Depending on where you live, you might want to expose your tomatoes to morning sunlight, to afternoon sunlight, or to a combination of the two.

Morning sunlight provides high-intensity light without excessive heat, therefore you should consider morning exposure if you live in a region with a hot climate.

Afternoon sunlight doesn’t provide the same light intensity but is generally warmer than the morning sunlight, therefore more suitable for your tomatoes if you live in a rather cold region.

And there is the noon sunlight, typically bright as the morning one and hotter than the afternoon one. The noon sunlight should be completely avoided if you live in a temperate or hot region. If there is no shade in your garden, you might consider building some sort of protection to cover your tomatoes during the hot noon hours.

If you live in temperate or cold regions, the best sun exposure would be a combination of morning and afternoon sunlight, but try to avoid the hot afternoon sun if you live in a hot region.

Final Thoughts

Now, how much sun do tomatoes need is no longer a mystery. All you have to do is to find the right spot in your garden and plant your tomatoes.

If in doubt, leave a comment with your questions below.

How Much Sun Do Tomatoes Need? The Age Old Question - Plant Something Long Island - Live Better - Grow Better (2024)

FAQs

How Much Sun Do Tomatoes Need? The Age Old Question - Plant Something Long Island - Live Better - Grow Better? ›

Sunlight is one of the most important requirements for a good vegetable garden. Tomatoes require a great deal of sunlight (8 hours), especially for setting fruit, and for this reason, the garden should be in an open area away from shade-producing trees and buildings.

Which is better for tomatoes, morning or afternoon sun? ›

Too much bright direct sunlight on plants can raise temperatures too high for ripening and lead to cracking and sunscald. It can also create problems caused by high humidity or dry soil. Do tomatoes prefer morning or afternoon sun? Tomatoes need both morning and afternoon sun and at least six hours of sun a day.

How much sun do tomatoes really need? ›

Tomatoes require full sun to grow properly, which means at least 6-8 hours of direct sunlight. While a tomato plant may survive in shade, it is unlikely to grow very big or give you many (if any) fruits.

Can tomato plants have too much sun? ›

Tomatoes need plenty of sunlight to produce fruit, typically around six to eight hours a day. Too much sun and heat can cause tomatoes to get sunscald. “Sunscald happens when the tomatoes are hit with the direct waves of the sun without any protection, similar to sunburn on us humans,” says Key.

Should you water tomatoes every day? ›

Water correctly: Do not overwater. The first week tomato plants are in the ground, they need water every day, but back off watering after the first week, slowly weaning the plants down to 1 to 1.5 inches of water per week.

What is the best fertilizer for tomatoes? ›

Look for a fertilizer that has a high middle number, which represents phosphorus, in the N-P-K analysis. Commonly available fertilizer analysis that are great for tomato seedlings include 8-32-16 and 12-24-12. Mix the fertilizer with water according to package directions.

Is morning or afternoon sun better for a garden? ›

Sunlight reaches its highest intensity between 10 a.m. and 4 p.m. Morning sun is the least intense. A few hours of morning sun isn't as intense as a few hours of mid-day and afternoon sun, realizing the hot afternoon sun can burn the leaves of some plants, even those of certain sun-loving varieties.

What is the secret to growing tomatoes? ›

Be careful not to plant tomatoes in the ground too soon. Your soil temperature must be consistently over 60 to 65 degrees Fahrenheit (15 to 18°C). Warm the soil with black plastic a couple of weeks prior and protect seedlings from the cold with sheets or row covers. Tomatoes LOVE sunshine!

What makes tomatoes grow bigger? ›

Tomatoes need plenty of room to grow. Commercially, most growers use a two-foot spacing within rows. If you want really large fruit, give them even more room. One of the most common errors by novice gardeners is planting tomato plants too close together.

Are tomatoes better in pots or ground? ›

Garden soil from planting beds tends to be too heavy for containers — it will over-compact — and may contain disease organisms. Tomatoes are susceptible to diseases (such as blight) and pests (like nematodes) that can hang out in soil, and one advantage of growing in pots is that doing so can reduce outbreaks.

Is it better to plant tomatoes in the morning or Evening? ›

4. Choose a cloudy day, or the cool of evening. To alleviate seedlings from shock, transplant on a cloudy day, or if it's not in the forecast, plan toward the end of the day, when air and soil temperatures cool and the sun is won't scorch the young plants.

Do cucumbers like morning or afternoon sun? ›

Cucumbers need lots of sun, at least eight hours a day. Morning sun is best because it dries the dew from the leaves which helps prevents mildew. Always rotate where you grow your cucumbers from year to year to avoid soil borne diseases and overwintering insects.

Is it bad to water tomato plants in the sun? ›

Also, when the plants dry out, the uptake of calcium is interrupted, which causes blossom end rot, the ugly blackened patch on the bottom of the tomato that ruins its looks. So, it's best to water them in the morning before the sun hits them.

Are coffee grounds good fertilizer for tomatoes? ›

Coffee grounds are packed with nutrients that tomato plants love, like nitrogen, potassium, and phosphorus. They help improve soil structure and promote microbial activity, which can lead to healthier, more robust tomato plants. Plus, they may even help deter certain pests.

Do peppers like morning or afternoon sun? ›

Morning sun is your pepper plant's best friend. Aim for a spot that catches those early rays but ducks out of the harsh afternoon light. Think east-facing windows or a garden spot that gets shade post-noon.

When should I water my tomatoes morning or evening? ›

TOMATO WATERING TIPS

Water in the morning to the keep the soil moist through the heat of the day. Always water at the base of the plant — watering from above invites disease. Check tomatoes growing in pots often since they dry out quickly. Be consistent — fluctuations in water supply lead to cracking and blossom end ...

How often should I water tomatoes in hot weather? ›

Tomatoes growing in pots have high water needs. The relatively small soil volume in the container limits the amount of water available to plants. During the heat of summer, container-grown tomatoes often need to be watered daily. Hot, windy conditions might require twice daily watering.

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