Blueberry, Northern Highbush (Vaccinium corymbosum) - 50 Seeds
•American grown seeds
•USDA Zones 3-9
Blueberries can be grown from seed very easily, but you do need to follow these instructions very closely. Best results are obtained if started inside in late winter or early spring, but they will germinate anytime of the year provided they are given ample light and warmth.
Before sowing, the seeds must be cold stratified for 90 days. Cold stratification will break the seeds' rest period so they are ready for planting. Here's a quick video demonstration: LINK
After the cold stratification, plant the seeds in a flat or tray of Sphagnum Peat Moss. Make sure the tray is at 3 inches deep for root development. Sprinkle the seed onto the top of the peat moss, and barely cover seeds with a very light ( 1/8-1/4 inch ) sprinkle of peat moss. The tray should be placed in an area that is warm, with bright light and the peat moss must be kept moist. If fungus develops on the surface of the moss, spray with any type of garden fungicide to control it.
Blueberry seeds are slow germinators, the first seeds will probably start to germinate in about a month, and finish germinating over the next 2-3 months. Leave the new seedlings in the peat moss until they are about 3 inches tall, then transplant into individual pots, being very careful not to damage the tiny root systems. Feed young plants with a weak solution of Miracle Gro Acid Plant Food or something similar, feed monthly and raise them in small pots until they are about 8 inches tall, then transplant into one gallon pots. Transplant 1-2 year old seedlings outside in the fall. Blueberries require adequate water, especially the first year that they are planted, to properly establish a good root system. During the growing season, blueberry plants typically require 1" of water per week
Plants will start producing berries when about 2 years old. In order for blueberry plants to produce berries the soil pH needs to be between 4.5 - 5.2. Soils not within the range of pH acceptability for blueberry plant growth must be prepared before planting. If the pH is too high, the growth of the plant is slowed and the foliage turns yellow. If the pH is too high for an extended period of time, the plants will die. When several plants are to be grown together, more satisfactory results will be obtained if an entire bed is prepared rather than digging holes for individual plants. With the lowest soil pH requirement of all berries, blueberries grow in the same acidic conditions that please other native shrubs such as rhododendron and azaleas.
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