So, the overall theme linked with the primary pigments present inside native plant leaves may provide a very basic solution to your question: blue-wavelength light is often absorbed rather than reflected. As a result, there aren't many real blue-colored summer or fall leaves. There are, of course, exceptions. For example, some species of hibiscus and rose have red flowers and green leaves in summer.
The fact that most blue colors come from chemicals found within cells should not be mistaken for meaning that you can't find blue materials outside of cells. For example, there are several types of minerals that will color water blue. When sunlight hits these minerals they will absorb certain wavelengths of light and re-emit them as longer wavelengths, which we cannot see. These longer wavelengths are what give water its blue color.
Furthermore, when you look at a leaf you're not just seeing chemicals inside the cell walls but also getting information about the health of the plant. Blue colored leaves may indicate that the plant is healthy and growing well but it could also be a sign of illness. If a plant has symptoms of disease such as yellowing leaves, drop in growth rate, or death of the plant then it's best to take action before it's too late.
In conclusion, the reason why leaves are usually brown or gray in winter and green in summer is because green light is absorbed instead of reflected.
There are purple and maroon leaves, and each of these hues contain a blue component, thus blue pigment is present someplace. However, leaves are never blue. There are blue pigments found in nature, such as blue flowers. Anthocyanins are responsible for the purple. They are also responsible for the color of red wine and blackberries.
The best way to understand how colors are formed is to look at examples. Below are two plants: one has green leaves, the other has red ones. You can see that both have leaves, but the color of their leaves is different.
Now, let's say that both plants grow in the same place, and they produce the same amount of sunlight. Still, some genes must make some differences in how their proteins are constructed, which then causes them to use different chemicals when making their leaves color.
These chemicals are called enzymes, and they are the key to understanding why things are colored the way they are. Enzymes change the shape of molecules, allowing them to pass through tiny holes (or gaps) in cell membranes. Some enzymes are specific to certain molecules or groups of molecules. For example, there are enzymes that can break down proteins, while others can't. Others still can combine proteins together into new structures. Enzymes can be found everywhere in nature, including inside many people.
Plants with Blue Leaves Some of our most beautiful conifers have blue to bluish-green leaves. The dwarf Alberta blue spruce is a typical example of a colorful evergreen. The extremely blue-needled foliage is likewise provided by French Blue Scotch pine and Ice Blue juniper. Other conifer species with blue leaves include the Chilean blue firs, Douglas fir, and noble fir. Within the flowering plant kingdom, many members of the borage family have their leaves colored an intense blue. These plants include cornflower blue, Indian paintbrush, and Pacific blue viteagrass.
Leaves can also take on a bright shade of green or bronze. Plants with green-blue leaves include the Himalayan balsam, Indian banyan, and Chinese tallow tree. Those with bronze-leaved branches include Brazilian pepper and Spanish chestnut.
Finally, there are plants with leaves that are completely black. The seeds of the coffee bush are covered in soft brown hairs which give them their attractive appearance. When the sun hits these seeds at the right angle, it reflects back up into space, helping to keep them pollinated.
In conclusion, yes, there are plants with blue leaves!
Why is blue so rarely seen in flowers? "Because there is no actual blue pigment in plants, plants do not have a direct technique of producing blue color," Lee explained. "Blue is much more unusual in foliage than it is in flowers," he adds. "Plants adapt or adjust the red anthocyanin pigments to produce blue blooms," Lee explained. "Anthocyanins give flower petals and fruit a pink or red color, but if the concentration is right, then under the right conditions, they can also produce blue."
There are several reasons why blue flowers are rare. One reason is that people like to see flowers that are attractive and make them feel good when they look at them. Blue flowers usually don't attract as many insects for pollination because they're not as colorful as other colors. Also, because they don't use red pigments to create blue flowers, most plants don't need nutrients in their soil to grow blue flowers; instead, they need nutrients so they can grow healthy green leaves and red or orange fruits/seeds.
Here are some plants that have blue flowers: Strelitzia reginae, Tradescantia ohiensis, Vinca rosea. These plants are called monochromes because they only have one color - blue. Monochromes are rare because they don't provide any advantage for insect predators to eat when they're blue.
Part of the explanation is that there isn't a true blue color or pigment in nature, therefore plants and animals must use light tricks to seem blue. This means that if there were many more red wavelengths of light available than blue, then life would be driven by red colors instead.
Another reason why you don't see much blue is because it's hard for your eye to distinguish colors that are close together on the color spectrum. For example, humans can only differentiate between red and orange colors, not between orange and yellow or yellow and green. So when looking at objects that are brown or grey, they appear bluish because they blend several colors together.
Finally, most things in nature are colored black or white because these colors do not reflect energy back into space. When light hits an object, it is reflected away from the source of light in almost exactly the same direction as when it arrived. Black objects cannot reflect this incoming light, so they look dark in comparison. White objects can reflect all wavelengths of light equally well, so they appear bright in comparison.
Your eyes are sensitive to certain wavelengths of light and less sensitive to others. Because blue has both long and short wavelengths, it falls in the middle where your eye is not as sensitive. That's why you rarely see blue objects in nature!