Rose Fertilizer
5N - 5P - 7K

Liquid Fertilizers with Magnesium and Micro-Nutrients!

Algoplus Natural Rose Fertilizer is designed for all climbing, rambling, miniature and shrub roses. It also helps to resists black spot. Our customers rave that they have never found a better product for their roses! Commerical rose growers use it too!

Our Rose fertilizer is a concentrated liquid fertilizer containing all of the necessary nutrients and magnesium to stimulate a generous flowering and healthy stems on the Rose without harmful additives.

Share ALGOplus on Pinterest!

Receive Roses and Flowering Shrubs slow release formula FREE when you buy 4 Algoplus Rose Liquid Fertilizers

Special Buy!

Receive one box of Roses and Flowering Shrubs Slow Release Granules FREE when you purchase 4 Liquid Rose Fertilizers!
Select "Special Buy" option below to get pricing.

  • In order to live, grow, develop, flourish and make fruits, plants need to be nourished. Their roots search and absorb nutrients in the soil. Water is essential for a good nourishment of the plants. From roots to leaves, it is the water that transports the important nutrients for the plants. For assuring optimum nourishment, it is important to use the right fertilizer dose and to fertilize regularly so that the plants' needs are met. Being well nourished makes your garden plants resistant against diseases and parasites.

    Algoplus is a liquid fertilizer, 100% completely soluble in water. Algoplus is a 100% mineral based balanced fertilizer designed to deliver the 12 essential nutrients and trace elements that plants need to boost growth, flowers, and fruit. It is non-burning and can be used every time you water. It is non-toxic, odorless, environmentally friendly and very economical to use.

    This patented formula contains no chlorides, no carbonates, no sodium -- it's odorless, colorless, and environmentally safe!

  • Since 1963, Algoplus has focused its research on ensuring that plants receive all the elements that are indispensable for their growth. Manufactured from the purest raw materials, every batch of Algoplus fertilizer is tested for harmful chlorides and carbonates to ensure you receive the highest quality product. Our fertilizers enable the grower to work in the best possible condition because it is Pure, Complete, Balanced, and Easily Assimilated!

    ALGOplus Geranium Fertilizer is easily assimilated!

    Algoplus fertilizers are Pure.

    They purity of salts used to produce Algoplus fertilizers allows the plant to absorb all the salts in sufficient quantities, without any risk of blocking or burning its roots.

    Algoplus fertilizers are Complete

    Algoplus contains all the vital mineral salts essential to plant health. There are 12 minerals which are indispensable to all plant life. Each mineral plays a distinctive role in the plants life cycle:

    Nitrogen: is the essential component for the growth of the stem and leaves. Produces lush, green foliage.
    Phosphorus: stimulates the growth of root systems and initiates the plants flowering and fruit production.
    Potassium: aids in photosynthesis, improving the coloring of flowers and increases the plant's resistance to cold, drought and parasites.
    Magnesium: is essential for the making of chlorophyll. It helps in the absorption of phosphorus and is indispensable to the plants activities of photosynthesis and energy production.
    Calcium: is a component of the cell structure which enables the plant to resist disease. This element is present in both water and soil.
    Sulfur: is an important ingredient in the manufacture of proteins and enzymes. Is absolutely essential to plant growth. It is widely present in the air. Rain supplies part of the sulfur need of plants.
    Trace Elements are Boron Manganese, Molybdenum, Iron, Copper and Zinc.

    Algoplus fertilizers are Balanced.

    All the elements are not absorbed in the same proportion, but they are all indispensable. Algoplus fertilizers are balanced to generate maximum availability of nutrients and plant production. This ensures all elements will be absorbed in correct proportion by the plant.

    Algoplus fertilizers are Easily Assimilated.

    Algoplus fertilizers supply the three forms of nitrogen needed for rapid plant assimilation, Nitric (fast assimilating) and ammoniacal (slow assimilating) while maintaining an ideal pH for the plant. Algoplus fertilizers supply a balanced form of natural mineral salts needed by the plants, without changing the conductivity of the soil.

    Mix 2 teaspoons (10 ml) of ALGOplus liquid fertilizer per gallon of water as a regular feed
    OR 1 teaspoon to spray directly onto the foliage.

    May be used at every watering for optimal results. One liter bottle for regular feeding makes up to 118 gallons!

    Roses & Flowering Shrubs Slow Release Granules
    Plants in Place: Use one tablespoon (1 oz) per plant and mix into the top 1-3" of the soil. Water thoroughly, and regularly thereafter. The best time to apply is between March-May, after having cut back your roses and flowering shrubs.
    During Planting: Make a hole in the soil and loosen the soil. Mix one tablespoon (1 oz) per plant and mix into the soil. Place the root ball of the rose in the middle of the hole, replace soil around the roots, and water intensively. If preferred, granules may be used 14 days after planting following the 'Plants in Place' instructions above.
    At time of planting Basacote® guarantees a good start and development for the plants.

    Pour 4 oz. of your favorite concentrated Algoplus Liquid Fertilizer into an empty hose end sprayer bottle. Fill the rest of the Hose End Sprayer bottle with water. Attach a hose to the end and turn on water. Rotate the dial to "ON" and apply.

    Safe for use at every watering. One liter bottle for regular feeding makes up to 118 gallons!

  • Should I chose the liquid rose fertilizer or the granular slow-release formula for my roses?

    Both products contain the nutrients your rose plants need, with an added boost of Potassium to strengthen the rose canes and produce big, vibrant roses. The answer to what type of fertilizer you should use depends on what type of gardener you are. If you you are a casual gardener, that enjoys the beauty of roses, but not the added maintenance and time, than the granular Algoplus Roses & flowering shrubs is for you. If you are a dedicated gardener that realizes roses are heavy feeders that require nutrients regularly to produce the best, healthiest plant, you will want to have both the granular product for an application in Spring as well as the liquid fertilizer for weekly to bi-weekly application through November.

    How often should I fertilize with liquid Algoplus fertilizers?

    Using liquid Algoplus fertilizers at every watering is recommended. We suggest at least twice per week or when it is dry an inch into the soil.

    Can I use Algoplus on my organic garden?

    Yes! Algoplus fertilizers can be used in your organic garden. Fertilizers are natural-born nutrients that plants can digest: "plant food." Fertilizers are not toxic. The main nutrients in most fertilizers - nitrogen, phosphorus and potassium - are naturally found on the land and in the air. In fact, these nutrients in fertilizers are the same as those in foods we eat and in our bodies. In addition to the basic natural ingredients, Algoplus is 100% mineral based, with NO harmful chemicals, NO environmental impact, and even NO color or odor!

    What does NPK mean?

    NPK stands for Nitrogen (N), Phosphorus (P) and Potassium (K). Each number represents the total percentage of weight of each fertilizer as packaged. Nitrogen is important to stimulate growth rate and to "green up" the foliage so that it can process nutrients more efficiently. Phosphorus stimulates rapid root growth. Potassium, stimulates flowering and fruiting.

    What is the difference between the plant specific formulations?

    Each specific plants needs differ from that of other plants depending on many factors including flowering, fruiting, root type as well as many other considerations. Plants can survive with only water, carbon dioxide and sunlight, but they also need minerals to grow and thrive. Nitrogen, Phosphorus, and Potassium (N-P-K) represent the percentage of nutrients contained in the fertilizer and is designed to meet the specific plants nutrient needs.

    Why is Algoplus's NPK formulation lower than other commercial fertilizers?

    Excessive nutrients can cause the roots and plants to burn up as the roots assimilate the nutrients. Algoplus only uses the purest nutrients, balanced perfectly to allow the plant to absorb all the salts (N-P-K) in sufficient quantities, without any risk of blocking or burning its roots. ALL of the nutrients are assimilated by the plants root system and no nutrients remain in the soil. Algoplus provides exactly what is needed by the plant in order for it to grow in the best possible conditions.

    See our FAQs page for more answers to popular questions or use our contact form if you need assistance.

*All products must be the same formula and free product(s) must be included in your shopping cart at the time of purchase to receive free product(s). Shipping & handling for free product(s) not included. Discount valid in the U.S. only and void where prohibited by government or law.

** Available online only. No coupon necessary. Limited time only. Offer expires 6/1/2017. Not available in Hawaii or Alaska.