100 Fresh black bamboo seed

 With jet black culms and feathery green leaves, this is perhaps our most sought after bamboo. Under ideal conditions Black Bamboo will grow to 35 feet in height with culms over 2 inches in diameter, but 25 feet is its average height in most climates. There has been at least one instance where Black Bamboo has been measured at over 45 feet, but this appears to be very rare. In most residential gardens here in Portland, Oregon, we usually find Black Bamboo to reach a plateau of about 25 to 30 feet in height.
    New culms emerge green every spring and gradually turn black in one to three years. There is always a contrast of light and dark culms balanced by slender, dark green leaves. This bamboo is initially slow to spread, through when mature, it can be quite vigorous. If planted in poor soil it tends to grow in a tight cluster, producing mostly thin, weepy culms. P. nigra

should be given a generous layer of rich topsoil, composed of compost or aged manure and mulch, and space to grow unimpeded. It makes an outstanding specimen, if well cared for, and can be the focal point of any garden. It can also be shaped to form a dense hedge for privacy. 
   

Gremantion

Pour seed-starting compost into a bucket or large bowl. Drizzle a small amount of water onto the compost while stirring it by hand. Keep adding water and stirring the seed-starting compost until it feels moderately moist throughout.

Fill 3-inch square pots with the moistened seed-starting compost. Press the compost into the pot to remove any trapped air.

Place two black bamboo seeds on the surface of the seed-starting compost. Cover the seeds with a 1/16-inch-thick layer of compost.

Spritz each pot with a water-filled spray bottle to settle the seed-starting compost around the black bamboo seeds. Spray the compost until the top 1/4-inch feels saturated.

  • Place a propagation mat near a large window with very bright, filtered light. Set the temperature to 68 degrees Fahrenheit. Set the pots atop the propagation mat.

  • Moisten the seed-starting compost with the spray bottle whenever it feels dry on the surface. Spray it until the top 1/4-inch becomes saturated. Do not let the seed-starting compost dry out.

  • Watch for sprouting two weeks after sowing the black bamboo seeds. Be patient, since many black bamboo seeds take up to two months to sprout.

    If you have any questions feel free to ask