Ask a Question forum: old Holland Bulb Booster

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Name: Iris Rothman

Dec 20, 2016 4:05 PM CST
I just discovered an open bag of Holland Bulb Booster, indoors in a dim spot. its probably been there for at least five years. Is is still usable? Or could I put it in my compost?
Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
Garden Sages Plant Identifier
Dec 20, 2016 6:07 PM CST
I would add it to my compost.
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost

Name: Rick Corey
Everett WA 98204 (Zone 8a)
Sunset Zone 5. Koppen Csb. Eco 2f
Frugal Gardener Garden Procrastinator I helped beta test the first seed swap Plant and/or Seed Trader Seed Starter Region: Pacific Northwest
Photo Contest Winner: 2014 Avid Green Pages Reviewer Garden Ideas: Master Level Garden Sages I was one of the first 300 contributors to the plant database! I helped plan and beta test the plant database.
Dec 20, 2016 6:09 PM CST
The MSDS sheet for "Holland Bulb Booster" gives these ingredients:

Ammonium phosphate
Potassium chloride, KCl
Potassium nitrate, KNO3

I would not expect any of those to ever go bad, unless it is able to release some ammonia, and thus have less N after many years of storage. They do say:

Chemically Stable: Yes
Conditions to avoid: Damp or wet conditions. Extreme heat.

But if they add some organic ingredients to it that the MSDS doesn't list, I guess it might possibly go bad. If it got soggy, trust it less.

I guess the name says it all: "Holland Bulb Booster ® Fertilizer, 9-9-6"
It's just 9-9-6 fertilizer.

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