Many people ask us how to fertilize blackberry bushes for best results. As blackberry people who are dedicated to helping everyone get the most out of their blackberry plants, we have an abundance of tips and advice. Keep reading to learn more about how to get started with blackberry fertilization.
Blackberries need to be fertilized in the spring when plants come out of dormancy and again in May when they start to flower using dry fertilizer and working it into the ground. Liquid fertilizer can be applied on the ground around the plant and as a foliar application.
Dry fertilizer is a longer life as it takes time to dissolve an get to the roots. Foliar fertilizing is like getting an IV, its instantly absorbed into the plant so does not lase very long. Generally, foliar fertilizer is recommended every three weeks but can be done daily.
Foliar fertilizing often does not require as strong a solution so a fertilizer that normally is mixed one ounce per gallon would be a tablespoon if weekly or teaspoon if done more often.
We offer one dry fertilizer:
Tom Doyle’s 4-4-4 natural fish-based fertilizer. It’s made from whole fish caught in the Gulf of Mexico. Many fish-based fertilizers remove the bone meal and fish oil and sell that separately at a very high price. We include the whole fish and supplement with natural products to get a balanced 4-4-4. With this you get a balance of trace minerals and enzymes to help grow healthy plants. Although designed for blackberries, it’s a good fertilizer for the entire garden.
We also offer a liquid fertilizer:
Doyle’s Liquid 3-3-3 is made from whole fish harvested in the Gulf of Mexico and supplemented with natural ingredients to make a balanced fertilizer. It was designed for foliar fertilizing and use in drip systems. Basic mixing is one ounce per gallon of water. It’s great for all plants, indoors and out as well as lawns. Available in quarts, gallons, 5-gallon and 30-gallon drums.