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Houseplant leaves often turn brown and crispy in winter due to dry indoor air. Keep leaves lush with a humidifier. Check for pests. Pests can sometimes invade houseplant collections and cause ...
These are carotenoids and they provide colorations of yellow, brown, orange, and the many hues in between. The carotenoids occur, along with the chlorophyll pigments, in tiny structures called plastids, within the cells of leaves. Sometimes, they are in such abundance in the leaf that they give a plant a yellow-green color, even during the summer.
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Many plants drop lots of leaves when they come inside due to lower light levels. You can try to help ease their transition by placing plants in the shade for about a week or two before bringing ...
Other plants are semi-evergreen and lose their leaves before the next growing season, retaining some during winter or dry periods. [11] Like a number of other deciduous plants, Forsythia flowers during the leafless season. Many deciduous plants flower during the period when they are leafless, as this increases the effectiveness of pollination.
Marcescent leaves of pin oak (Quercus palustris) complete development of their abscission layer in the spring. [8] The base of the petiole remains alive over the winter. Many other trees may have marcescent leaves in seasons where an early freeze kills the leaves before the abscission layer develops or completes development.
A plant will abscise a part either to discard a member that is no longer necessary, such as a leaf during autumn, or a flower following fertilisation, or for the purposes of reproduction. Most deciduous plants drop their leaves by abscission before winter, whereas evergreen plants continuously abscise their leaves. Another form of abscission is ...
While these plants are relatively low maintenance, it’s not unusual for peace lily leaves to turn yellow here and there due to stress, pests, or other issues. This guide explains the most common ...