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Pines have four types of leaf: Seed leaves on seedlings are borne in a whorl of 4–24. Juvenile leaves, which follow immediately on seedlings and young plants, are 2–6 centimetres (3 ⁄ 4 – 2 + 1 ⁄ 4 inches) long, single, green or often blue-green, and arranged spirally on the shoot. These are produced for six months to five years ...
Apply a layer of pine straw or leaves in late fall to moderate soil temperatures and conserve moisture. Winter winds can be particularly hard on broadleaf evergreen plants, causing plants to lose ...
Quercus palustris, also called pin oak, [4] swamp oak, or Spanish oak, [5] is a tree in the red oak section (Quercus sect. Lobatae) of the genus Quercus. Pin oak is one of the most commonly used landscaping oaks in its native range due to its ease of transplant, relatively fast growth, and pollution tolerance.
Pines with one fibrovascular bundle per leaf, (the former subgenera Strobus and Ducampopinus) were known as haploxylon pines, while pines with two fibrovascular bundles per leaf, (subgenus Pinus) were called diploxylon pines. Diploxylon pines tend to have harder timber and a larger amount of resin than the haploxylon pines.
The hardest hardwoods are much harder than any softwood, [4] but in both groups there is enormous variation with the range of wood hardness of the two groups overlapping. For example, balsa wood, which is a hardwood, is softer than most softwoods, whereas the longleaf pine, Douglas fir, and yew softwoods are much harder than several hardwoods.
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 ...
Evergreen and deciduous species vary in a range of morphological and physiological characters. Generally, broad-leaved evergreen species have thicker leaves than deciduous species, with a larger volume of parenchyma and air spaces per unit leaf area. [4] They have larger leaf biomass per unit leaf area, and hence a lower specific leaf area ...
A mixture of equal parts coarse sand, finely shredded pine bark, and oak leaf mold also works well. Repot cryptomeria every two to three years into larger containers and fresh soil.