Organic PrimeStart Booster Blend 3.2-4.5-3.5 (3 Lb Bag) - F2000

Organic PrimeStart Booster Blend 3.2-4.5-3.5 (3 Lb Bag)
Growing Raspberries & Blackberries

Growing Raspberries & Blackberries

Planting & Growing Rhubarb

Planting & Growing Rhubarb

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This Custom Blend Will Get Your Bare Roots Off to a Great Start

In their first year of growth, most perennial transplants don't need high levels of the major nutrients. This blend provides just what your plants need. It has small amounts of all the major nutrients, in combination with humates and Mycorrhizae.

  • Contains soft rock phosphate, fish bone meal, feather meal, gypsum, sulfate of potash, azomite, kelpmeal, humic acids, and mycorrhizal inoculant.
  • Use one 3 lb bag per bare root tree
  • Grapes and blueberries add 1 lb (2 heaping cups) per plant
  • Cane berries add 3 Tbs per plant, strawberries use 1-2 Tbs per plant.

Spread near the plants roots, as you back fill the planting hole. Keep in mind that it is still important to amend the entire back fill soil with some compost, as you normally would.

Important Information for Certified Organic Growers

This product should be suitable for use in organic agriculture as it has been deemed to be compliant with the USDA National Organic Program. However, as the status of any product can change at anytime, please always confirm that this product is allowed by your certifying agency.

We do our best to update our product's organic status, however the status of any product can change at anytime without notice from the manufacturer. Please confirm that the product is allowed by your certifying agency and that it's still on CDFA's organic input material list at

Customer Reviews

This stuff works.

My beautifully leafed out, already productive trees (planted in clay soil, nonetheless) are a testament to this product.

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Pre-portioning is convenient

Nice to have all the nutrients and mycorrhiza in one convenient pouch.

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EXCELLENT for new plantings

GREAT product! Used as directed when I planted 3 olive tree saplings I purchased from PVFS and have seen improved growth, vigor and virtually zero transplant shock associated with typical plantings.

Review by (on )

My trees have done amazingly well in their first year. Having pre-portioned bags is so helpful. You don't have to measure in the field when you're busy digging and planting.

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Perfect for Trees

My trees planted with this are doing beautifully. It doesn't have any nitrogen, just good stuff for root building so it's perfect for bare roots.

Review by (on )

We have clay soil, so I used this booster in the holes for my fruit trees. It's really nice to not have to measure anything. It is one bag per tree. My trees are doing great. The booster gets them off to a good start.

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