They can't get the proper nutrients and sand is not water retentive.
pot, basin, shells, stones, marbles,plants
Usually cactus grow fairly well, so to aloe-vera plants.
Soil with rocks or gravel or sand are usually not suitable for plant growth.
because the sand is not capable for plants to grow.first the sand has a little percent of nutrient for plants,the sand is weak to carry the plants root,only the coconut tree will grow on the sand or other plants only
Sand.
There is nothing in sand that will make plants grow.
Not all plants grow in sand. Plants produce food from a combination of elements in their environment, including sunlight, water, and nutrients in the soil (or sand, I suppose).
Same thing as other cows do. See related question below for more.
Plants can not grow in sand alone.If you provide the necessary nutrients and water, as in Hydroponic gardening, then you can grow healthy plants in sand or gravel. But that is not 'sand alone'.Likewise, plants will grow well in sand that has organic material and other soil enrichers mixed into it. Again, that is not 'sand alone'.Plants can grow in just about any medium, as long as they have water and nutrients. Unfortunately, sand doesn't hold onto water and it contains no organic material, so there is nothing for plants to use for nourishment.As you can see at a beach or in a sand desert, some plant species have evolved to handle conditions close to 'sand alone', usually by sending roots down far enough to find water, or by growing very fast whenever there is a rain, or by absorbing the rainwater quickly and storing it for future use. However, even these plants can only survive where there are some nutrients mixed in the sand. Pure sand will not do.(Please note: this question concerns growing in 'sand alone', not 'sandy soil' or 'in a desert'.)
Sand dunes appear on the ground, not on plants.
Plants, such as trees and bushes, can stabilize a sand dune and slow or limited its growth and movement.
Sand provides horrible nutrients, and bad anchoring for plants roots, therefore limiting the plants height. water is the answer