All seasons horticultural and dormant spray oil review
It’s time to review some more dormant oil sprays. This review will only consider active ingredients and if they work properly for me in winter. I will add dormant oils and products as I add them. If you would like a dormant oils review to go with your dormant oils sprays, comment and I will make one available to you.
This season I will be using the dormant oil spray in two ways. One is for pre-treatment and the second is for post-treatment. We will also briefly look at oil sprays with additives in them. The first category we will review are the ones that make sense pre-treatment. I will look at the season’s best ones, products I have been using for awhile, and products that have been discontinued. I will also add reviews for more products, but these are for later.
I will start with the active ingredients in winter dormant oils and dormant oil sprays. These are the main ingredients, not everything is available as a dormant spray and not every oil provides the same benefits.
Alkann’s® – Alkann’s® (AKA: Alkann) is an oil with anti-dormant qualities. It is a mixture of 2 main ingredients. The first ingredient is 1, 2-butadiene and the second is a mixture of the fatty acids. Both have been used as a food preservative and as an antimicrobial agent. Both have an excellent safety record with no toxicity or known detrimental effects. Alkann’s® is currently the only oil available that actually works.
For the dormant spray, the 1, 2-butadiene breaks dormancy on the outside of the dormant flowers while the fatty acids penetrate into the dormant bud breaking dormancy. The combination of both helps break dormancy and prevent budbreak.
Alkann’s® is available through most of the distributors of dormant oil products.
Alkann’s® will keep your plants dormant for up to 3 months, but Alkann’s® should be applied late in the fall to cover all outdoor plants. The sprays are applied in a light misting using an atomizer. When applying the spray, be sure the plants are dry.
To break the dormancy of dormant flowers, spray the buds directly on the buds in the bud cluster. To break the dormancy of the dormant buds that haven’t yet sprouted, spray it on the calyx or at the root area near the bottom of the stem. For the best results, spray it in the early morning so that the plant has a few hours to absorb the oil.
To prevent budbreak of outdoor flowers, you will have to cover your plants at night with an oil film. The film will form a protective skin that will keep the flowers dormant, even if the plant is not treated with a winter oil. To add to the prevention, apply the oil during the late fall or early winter when the flowers have already bloomed.
Dormant Oil Benefits:
Seedlings – The oil, when applied, will create a thin layer around the root area that will keep the plant in a dormant state.
Perennials – It will prevent the bud and flower from opening too early, especially if it’s a warm spring.
Deciduous Trees – The dormant oil will help prevent the tree from opening, allowing it to conserve energy during the growing season.
Perennial Plant Bulbs – The oil will create a protective membrane around the bulb, helping to delay sprouting.
Fertilizing after the spring – Use 5-10 pounds of a 10-10-10 or 1-1-1 fertilizer and apply before the plant begins to grow. Don’t fertilize a plant in the winter when it’s dormant.
To apply the dormant oil to your garden, use a sprayer. Shake the can as you open it and apply the oil to your plants in the morning or evening. Repeat the process every three weeks. You may have to apply the oil a couple of times a season. The oils won’t have any effect on the plants for more than three months.
Beneficial Uses of Dormant Oil:
Fruit – Keep your fruit trees from being attacked by insects and mold during the winter.
Houseplants – The dormant oil will help keep the plants in a dormant state, while also helping them last through the winter.
Pruning – Applying the dormant oil can help the branches and twigs form thicker, darker bark. This will prevent damage from pests, especially in the spring when the buds are starting to sprout.
Winterizing Your Flowers and Shrubs:
Protect your flowers, shrubs, or ornamental grass from winter damage by wrapping them with insulation when they’re dormant. Keep this on top of the shrub or grass.
Using a pot to protect your plants is fine, as long as the plant’s pot is made of plastic, rubber, or other waterproof material.
To keep your herb and vegetable gardens warm, use a propane heater like a space heater. If you’re using a traditional heater, make sure you heat the garden using a timer. You want to turn the heater off when it’s cold outside.
You can also protect your herbs and vegetables by wrapping them in straw, newspaper, or other material.
Keeping your plants indoors through the cold winter months can be tough, but with these tips you can keep them safe.
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