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How to Grow Blackberries from Seeds

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Blackberries (Rubus spp.), which grow best in U.S. Department of Agriculture plant hardiness zones 5 through 10, are commonly propagated through cuttings or division. This method gives an exact copy of the berry bush. It is possible to grow blackberry shrubs by planting seeds, but the seedlings vary in features. The best time to plant young blackberry seedlings outside is in September, but the germination process begins six months earlier.

Harvest the blackberry fruit. Use fresh berries to gather the seeds, not dried fruit. The germination rate drops when the seeds dry out. Place the fruit in a blender, pulsing on low until the seeds and fruit separate. Strain the berries out of the juice, and pick the seeds out of the pulp with tweezers.

Examine each of the seeds for scratches or nicks. Scratch any seed without damage with a sharp knife. Scarification helps break the strong seed dormancy surrounding the embryo.

Place the blackberry seeds in a resealable plastic bag along with a handful of damp peat moss. Seal the bag, and place in a refrigerator with temperatures around 33 to 35 degrees Fahrenheit. Keep the seeds chilled for 12 to 16 weeks.

Fill seed trays with seed starter soil, and spread the blackberry seeds on top of the soil. Lightly cover the seeds with soil, and place in a warm area. Blackberry seed germination does not require bright light since the seeds are covered with soil. Mist the soil with water in a spray bottle whenever the soil begins to dry out. Once seedlings begin to sprout, move the tray to an area with bright light.

Remove the weeds from a planting area in full to partial sun. Pick a location with good drainage. Spread a 3- to 6-inch-layer of well-rotted compost over the planting area. Dig the organic material into the soil with a shovel. Work the compost into the top 8 inches of soil. This gives the blackberry plants a good source of slow-release nutrients. Smooth the soil with a rake.

Dig holes with a hand trowel only as deep and wide as the seedlings’ root balls. Space the holes out 4 to 6 feet apart. Place the seedlings in the holes, and fill with soil. Gently firm the soil around the brambles so they stand up. Space the rows 10 feet apart.

Water the soil around the base of the blackberry plants until it is slightly muddy. Give the berry plants 1 inch of water each week when there is no rainfall during the summer. Spread 2 to 3 inches of organic mulch around the base of the new shrubs. Mulching benefits blackberry bushes by reducing weed growth, slowing soil moisture evaporation and providing slow-release nutrients. Keep the mulch layer thick throughout the life of the blackberry bushes.

How to Grow Blackberries from Seeds. Blackberries (Rubus spp.), which grow best in U.S. Department of Agriculture plant hardiness zones 5 through 10, are commonly propagated through cuttings or division. This method gives an exact copy of the berry bush. It is possible to grow blackberry shrubs by planting seeds, but …

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We have created this variety for foodies who love marijuana. The mix of flavors offered by our Blackberry create a burst of sensations: spicy, sweet, fruity, wild berries, and pine – an explosive mixture that’s difficult to forget. These alluring qualities result from the combo of Blackberry and purple Kush strains of Pakistani descent. Minor Sativa and Canadian ruderalis contributions round out the necessary genetics of the strain.

Taste
Our Blackbery achieves a very sweet and berry aroma, with a background of butter tones.

Effect
Besides its spectacular flavor and aroma, it provides a buzz that you will remember: a blow to the cerebral faculties, followed by the relaxation of every muscle in your body. Many consumers claim that they make sure their share of Blackberry is prepared and ready to use at their nightstand before they go to bed because its strong muscle relaxant properties help to induce sleep, and since it’ll simply have you sleeping throughout the night like a baby. On a medicinal level, it is used for patients who have problems with insomnia, anxiety and stress, and it’s especially useful for muscle conditions such as spasms and pain.

Growing
It looks like an Indica variety, being small in size, between 70-110 cm (2.2 – 3.6 ft). It has a short internodal distance, with lots of small branches along its stem, demonstrating compact buds that are situated around a large central cola. Its flower production is outstanding. The buds will gradually become covered with an abundance of resin as if they were snowed upon. In addition to this visual spectacle, the strain rapidly develops its fresh, fruity aroma. Our research department has described this variety as “a major producer of resin.” This quality is made possible by its Pakistani genetics, a fact that some growers are going to appreciate abundantly. The oddest thing about this genetic variety of marijuana is that it readily develops lilac and red colors. This fact will cause you to fall in love with it throughout its growth cycle. Although it is suitable for both indoor and outdoor cultivation, indoor cultivation is recommend. Provide at least 18 hours of light and 6 hours of darkness per day. With good care, your plants will be ready in 8 weeks, and can produce up to 600 gr / m2 (1.3 pounds per light). Outdoors is ideal for warm climates that don’t experience much overall change in temperature.

After 10 to 15 days after harvest, notice how your dried Blackberry has a very dark violet color, and gives off a sweet fruity aroma with earthy nuances.

Gender: Feminized
Genes: mostly indica
Genetics: Blackberry Kush autoflowering
Flowering: 8 weeks from germination
Harvest US: up to 1.3 pounds per light
Harvest EU: 500-600gr/m2; 70-300 g/plant
Height US: up to 45 inches
Height EU: 70-110cm
THC: Very high
CBD: 0,8%

<p>We have created this variety for foodies who love marijuana. The mix of flavors offered by our Blackberry create a burst of sensations: spicy, sweet, fruity, wild berries, and pine – an explosive mixture that’s difficult to forget. These alluring quali