gram. 1  the basic unit of mass in the metric system, equal to 0.03527 ounce (0.0022046 pound or 15.4321 grains): now defined in the SI system as 0.001 of the mass of the standard international kilogram (a platinum-iridium cylinder kept in France): one pound equals 453.5924 grams: abbrev. g.
1 Light: Hibiscus are full-sun plants. Lack of sunlight can cause overall yellowing of the leaves. On the other hand, if the plant is getting sunburned, the leaves can get yellow or white splotches.  Insect Infestation: Spider mites and aphids are two major pests of hibiscus that can cause leaf damage and discoloration.
1 Any pruning of tropical hibiscus affects bloom. 2  Hibiscus bloom on old wood, meaning that removing wood during winter will limit the following season's bloom. 3  Spring pruning, after new growth is under way, however, delays bloom on the affected branches.imit winter pruning of tropical hibiscus to emergencies. Hibiscus plants flower all summer long on city porches and suburban landscapes, but when autumnâs warm breezes turn chilly, those planters and pots come indoors to spend the winter away from daytime chills and frosty nights.