A type of blackberry, boysenberries, expand in Northern California since they can not tolerate temperatures. So are ideal for all but the driest regions of the inland Bay region the plant flourishes in locations with high humidity and warm summers. The berries grow on observation canes. You can successfully grow them in pots equipped with suitable support, if you don’t have space for boysenberries in your garden.
Combine 1/2 cup fertilizer labeled as”10-10-10,” meaning it contains 10 percent every single nitrogen, potassium and phosphorus, and enough dirt to fill a 10-gallon nursery pot. Use a soil since boysenberries call for a soil rich in organic matter, containing compost.
Put 2 inches of rocks in the base of the container in order to add weight. Do not cover the holes.
Fill the pot. Set the pot in a full sun location until it moist, and water the soil.
Insert a container trellis or espalier frame . Push in until it touches the base of the pot the trellis.
Plant the cane at the pot in the same depth it at in its nursery wrapped. Many canes are offered dormant with all the origins wrapped in moist peat and plastic, which requires removal. The location should sit at soil level.
Cut off the dead part of the boysenberry cane once growth starts emerging at its base in summer. Tie the new expansion loosely on the trellis with plant ties once it is long enough.
Select three upright canes and maintain these tied and trained into the support. Allow the lateral branches to grow inside, tying these horizontally along the aid then allowing them to drape down as soon as you arrive at the edge of the trellis.
Water that the boysenberries every one to three days, or enough that the soil stays moist but not soggy. During hot weather that the soil require irrigation and may dry out quickly.
As soon as the support is not 4 inches taller than them, prune off the vertical canes. Make a cut over a leaf or bud with pruning shears or a sharp knife. This is called”topping.”
Prune the boysenberries in late winter before new growth starts. Cut weak and damaged timber out. If they are two or more years old cut out the older vertical canes. Boysenberries are created on 1- plus 2-year older canes, canes that were therefore elderly are productive. Train new canes into the trellis in spring to replace those eliminated.