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Various citrus trees can be grown from seed indoors fairly easily and make a beautiful houseplant. It can take as long as 10-15 years for a lemon tree to produce fruit, but in the meantime the ...
The Royal Botanic Gardens in Sydney have published information on how to grow Wollemi pines from seed which has been harvested from helicopters from the forest trees. The majority of seeds that fall from the cone are not viable so need to be sorted to retain the plump and dark ones. These can then be sown on top of seed raising mix and watered.
The cones thus grow over a two-year (26-month) cycle, so that newer green and older, seed-bearing or open brown cones are on the tree at the same time. Open cone with empty pine nuts. The seed cones open to 6–9 cm (2 + 1 ⁄ 4 – 3 + 1 ⁄ 2 in) broad when mature, holding the seeds on the scales after opening.
Christmas tree cultivation is an agricultural, forestry, and horticultural occupation which involves growing pine, spruce, and fir trees specifically for use as Christmas trees. The first Christmas tree farm was established in 1901, but most consumers continued to obtain their trees from forests until the 1930s and 1940s.
Many pine trees turn yellow this time of year because of normal “needle drop” on the inside branches
In some cases, they will drop their seeds, but in most Pinus serotina, they will persist and hold their seeds. The color of the seed cones and seed scales is red-brown in color. The foliar sheaths measure 0.4 to 0.8 with long bases. The seeds are ovule in shape, being 0.2 and 0.24 in length, and have an angled tip colored a pale brown. [10]
Pinus pinaster, the maritime pine [2] [3] or cluster pine, [2] is a pine native to the south Atlantic Europe region and parts of the western Mediterranean. It is a hard, fast growing pine bearing small seeds with large wings.
Pinus gerardiana, commonly known as the chilghoza pine or neja, is a pine species native to parts of central and southern Asia, including the western Himalayas. The International Union for Conservation of Nature (IUCN) listed it as near threatened in 2011.