Blossom Booster use in your Home

Jack's Classic® Blossom Booster has been a long time company and home professional favorite. It can be used on such a large variety of plant material that it is our second most popular formula. 

The numbers in the fertilizer represent the percentage of nitrogen, phosphorus and potassium in the fertilizer, always in that order. Our Jack’s Classic Blossom Booster formulation is 10-30-20. This is actually the optimal level of phosphorus to enhance flower and fruit production. Any fertilizer with a higher level of phosphorus (the middle number) is actually wasteful as the plants are unable to utilize such a large amount of phosphorus. Any phosphorus the plants cannot take up could be lost from the pot and leached out into the environment as run off.

Timing is everything when it comes to phosphorus, and more is not always better. Applying such high rates of phosphorus will also cause plants to stretch, which will make your plants look thin instead of filled out as should. Use this high phosphorus formulation during periods of bud set to increase number and size of blossoms. Resume use of traditional or lower phosphorus fertilizers for the remainder of the growing cycle to avoid “leggy” or “stretched” plants.

Jack's Blossom Booster is safe to use on many types of plant including:

• All flowering beds, containers and hanging baskets

• Fruit trees

• Bramble varieties (blackberries, raspberries)

• Strawberry and Blueberry bushed

• All types of garden vegetables

• Hydrangeas

• Bougainvillea

• Hibiscus

• Orchids

• Vandas