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Iris flowers are popular amongst gardening lovers because they come with unique drooping petals, countless varieties, and a wealth of color hues. But, if it’s your first time growing Irises, you’re probably wondering where they lie on the sun exposure spectrum. Do Irises need full sun, partial sun, or complete shade? Yes, Irises grow best in full sun, which translates to six to eight hours of sunlight per day. In addition to that, these flowers can handle only three to four hours of direct sun, but these conditions aren’t optimal. Have more questions about Irises and their relationship with the sun? This article dives deeper into this topic, so stick around to learn everything about these pretty flowers! Do Irises Grow in Partial Shade? A lot of people will tell you that, no, Iris flowers don’t do well if you plant them in a protected part of your garden. However, that’s not entirely true; the climate where you live is the factor that determines the perfect spot for keeping your Irises. Let’s be more specific. In states where the weather conditions are moderate or cold, Irises will need all the sun that they could get. If your house is located somewhere that fits this description, your Irises shouldn’t sit in a shaded section of your yard. On the other hand, people who reside in extremely hot regions should keep their Iris flowers in the shade and have them exposed to sunlight for only three or four hours. You should also know that, while most Iris varieties are sun lovers, some just don’t mind the shade. For example, Japanese, Siberian, and bearded Irises require full sun, while crested Irises prefer partial shade. The bottom line is that you need to take a minute to consider your climate and the exact type of Irises that you have before deciding whether or not it’s a good idea to grow them in the shade. Can Irises Tolerate Full Shade? Unfortunately, most Iris species like bright sunlight, and even those who can grow in the shade only handle partial shade. In other words, the maximum amount of time Irises could stay in the shade is three to four hours per day. However, there’s a curious variety of Irises that we were surprised to find out about, boasting an endurance for growing in complete shade. This is the stinking Iris, coral Iris, or Gladwin; whichever name you like! This lovely flower is pretty versatile because it thrives in full and partial sun as well as in the shade. Therefore, it might be a great choice for that part of your flower garden that sits in the shadow of trees or your house itself. How Much Sunlight Do Irises Need? Even though Irises love the sun, receiving too much sunlight, especially if it’s a harsh, high noon sun, can damage delicate petals and leaves. For this reason, their six to eight hours of the sun should be of the softer kind. But how can you manage that? Easy. All you’ll have to do is make sure only the gentle morning sun reaches your flowers. When things get intense in the afternoon, your Irises should be protected from the stronger sun rays in the shade. A good way to do that is to plant your Irises in a flower bed that gets sun from the east and, at the same time, receives some shade from the west. Can I Grow Irises Indoors? Yes, but you’ll need to choose the location where you’ll keep your potted Irises carefully. That spot needs to be sunny, receiving direct sunlight for at least six hours. If you have a windowsill that falls into that category, then everything should go according to plan! Remember that said window shouldn’t have any kind of shade on it, not even light, tulle curtains. Another thing to know is that Irises can handle partial shade if they’re being exposed to bright, direct sunlight. If not, then you shouldn’t combine indirect sun and shade. How Can I Tell If My Irises Are Getting Too Much Sun? It’s pretty simple to tell if your Irises are receiving more sunlight than they need; their leaves will turn brown and look withered. Of course, this can also be a symptom of insufficient water, so you should monitor your flowers closely to see which is the case. To make sure you aren’t overexposing your Irises to the sun, it’s a good idea to have the light reach them for about four hours in the morning. Then, give them a break by keeping them in the filtered sun during noon. Afterward, you can expose them to more sunlight in the late afternoon. How Can I Tell If My Irises Aren’t Getting Enough Sun? If your flowers need more sunlight, they’ll definitely let you know through some subtle clues. You’ll just need to keep a close eye on your Irises to see if they’re receiving proper sun exposure. If they’re not, you’ll notice: Brown leaves and dying, unhealthy petals Spots on the leaves Dead leaves Wilting flower stems It’s important to keep in mind that not getting a sufficient amount of sunlight increases the chances of your Irises catching different sorts of diseases, especially of the fungal variety. Therefore, if you see any of these signs on your plants, you should make adjustments so that they can get more sun. Final Thoughts - Do Irises Need Full Sun To Grow As a beginner to the gardening world, or just the brand-new territory of Iris-growing, it’s only normal to ask, “how much sunlight do Irises need?” Now that you’ve read our article, you know the in-depth answer to this question. Sure, Irises require full sun to grow, but they can deal with partial sun exposure if the climate is too hot. Some varieties thrive in the shade, too, namely the coral Iris. Once you give your flowers all their sun, soil, and water needs, they’re sure to grow into breathtaking blooms and fill your garden with pretty colors! Frequently Asked Questions Where is the best place to plant irises? You must plant irises in a place that receives half a day sunlight. But, during extreme hot weather give them a shade to propagate well. Also, make sure to plant them on raised beds or in slopes. https://youtu.be/vx-VMETm4g0 Can irises grow in shade? Bearded, Siberian and Japanese irises grow well in places that receive partial or full sun. However, the crested iris require partial shade to grow well. Crested Irises are mostly cultivated in eastern United States and have 4-6 inches of leaves. The flowers on this are pale blue or violet and their crests are white or yellow. Do irises need lots of water? Irises don't need too much of water. On the other hand, overwatering can make them rot. Make sure to water them consistently during hot summer. Do irises spread? Bearded Irises do have rhizomes that help them to spread. But, unlike other rhizomes plants, irises spread slowly. When irises rhizomes growth spreads, they become susceptible to pests and even stop them from blooming. Make sure to divide and transplant your irises to get more blooms.